PBar = Barometric pressure, in. Hg (mm Hg).
T = Ambient temperature, [deg]F ([deg]C).
W = Percent free water by weight, percent.
O2 = Percent oxygen in stack gas, dry basis, percent.
* * * * *
    31. Amend Method 5 of Appendix A-3 to Part 60 as follows:
    a. By revising Sections <IP_ADDRESS>, <IP_ADDRESS>, and <IP_ADDRESS>.
    b. By revising Section 7.1.3.
    c. By removing Section 7.1.5.
    d. By revising Sections 8.1, 8.3.4, 8.7.3, and 8.7.5.
    e. By revising Sections 10.3.3, 10.4, 10.5, and 10.6.
    f. By revising Equation 5-13 in Section <IP_ADDRESS>.
    g. By adding Section 16.3.
    i. By adding reference 13 to Section 17.0.

Method 5--Determination of Particulate Matter Emissions From Stationary
Sources

* * * * *
    <IP_ADDRESS> Filter Holder. Borosilicate glass, with a glass frit
filter support and a silicone rubber gasket. Alternatively, Teflon
filter holders may be used. Other materials of construction (e.g.,
stainless steel or Viton) may be used, subject to the approval of
the Administrator. The holder design shall provide a positive seal
against leakage from the outside or around the filter. The holder
shall be attached immediately at the outlet of the probe (or
cyclone, if used).
* * * * *
    <IP_ADDRESS> Temperature Sensor. A calibrated temperature sensor
(rechecked at at least one point after each test) shall be installed
so that the sensing tip of the temperature sensor is in direct
contact with the sample gas, and the temperature around the filter
holder can be regulated and monitored during sampling.
* * * * *
    <IP_ADDRESS> Metering System. Vacuum gauge, leak-free pump,
calibrated temperature sensors (rechecked at at least one point
after each test), dry gas meter (DGM) capable of measuring volume to
within 2 percent, and related equipment, as shown in Figure 5-1.
Alternatively, an Isostack metering system may be used if all Method
5 calibrations are performed, with the exception of those related to
[Delta]H@ in Section 9.2.1, wherein the sample flow rate system
shall be calibrated in lieu of [Delta]H@ and shall not deviate by
more than 5 percent. Other metering systems capable of maintaining
sampling rates within 10 percent of isokinetic and of determining
sample volumes to within 2 percent may be used, subject to the
approval of the Administrator. When the metering system is used in
conjunction with a pitot tube, the system shall allow periodic
checks of isokinetic rates.
* * * * *
    7.1.3 Water. When analysis of the material caught in the
impingers is required, deionized distilled water (to conform to ASTM
D 1193-77 or 91 Type 3 (incorporated by reference--see Sec.  60.17))
with <= 0.001 percent residue shall be used. Run blanks prior to
field use to eliminate a high blank on test samples, and use only
water with low blank values (<= 0.001 percent).
* * * * *
    8.1 Pretest Preparation. It is suggested that sampling equipment
be maintained according to the procedures described in APTD-0576.
Alternative mercury-free thermometers may be used if the
thermometers are at a minimum equivalent in terms of performance or
suitably effective for the specific temperature measurement
application.
* * * * *
    8.3.4 Set up the train as shown in Figure 5-1 ensuring that the
connections are leak-tight. Subject to the approval of the
Administrator, a glass cyclone may be used between the probe and
filter holder when the total particulate catch is expected to exceed
100 mg or when water droplets are present in the stack gas.
* * * * *
    8.7.3 Before moving the sample train to the cleanup site, remove
the probe from the sample train and cap the open outlet of the
probe. Be careful not to lose any condensate that might be present.
Cap the filter inlet where the probe was fastened. Remove the
umbilical cord from the last impinger, and cap the impinger. If a
flexible line is used between the first impinger or condenser and
the filter holder, disconnect the line at the filter holder, and let
any condensed water or liquid drain into the impingers or condenser.
Cap off the filter holder outlet and impinger inlet. Either ground-
glass stoppers, plastic caps, or serum caps may be used to close
these openings.
* * * * *
    8.7.5 Save a portion of the acetone used for cleanup as a blank.
For each container of acetone used for cleanup, save 200 ml and
place it in a glass sample container labeled ``acetone blank.'' To
minimize any particulate contamination, rinse the wash bottle prior
to filling from the tested container. Take 200 ml of this acetone
directly from the wash bottle being used, and place it in a glass
sample container labeled ``acetone blank.''
* * * * *
    10.3.3 Acceptable Variation in Calibration Check. If the DGM
coefficient values obtained before and after a test series differ by
more than 5 percent, the test series shall either be voided, or
calculations for the test series shall be performed using whichever
meter coefficient value (i.e., before or after) gives the lower
value of total sample volume.
* * * * *
    10.4 Probe Heater Calibration. Use a heat source to generate air
heated to selected temperatures that approximate those expected to
occur in the sources to be sampled. Pass this air through the probe
at a typical sample flow rate while measuring the probe inlet and
outlet temperatures at various probe heater settings. For each air
temperature generated, construct a graph of probe heating system
setting versus probe outlet temperature. The procedure outlined in
APTD-0576 can also be used. Probes constructed according to APTD-
0581 need not be calibrated if the calibration curves in APTD-0576
are used. Also, probes with outlet temperature monitoring
capabilities do not require calibration. As an alternative, the
following single-point calibration procedure may be used. After each
test run series, check the accuracy (and, hence, the calibration) of
each thermocouple system at ambient temperature, or any other
temperature, within the range specified by the manufacturer, using a
reference thermometer (either ASTM reference thermometer or a
thermometer that has been calibrated against an ASTM reference
thermometer). The temperatures of the thermocouple and reference
thermometers shall agree to within 2 [deg]F. Note: The
probe heating system shall be calibrated before its initial use in
the field.
    10.5 Temperature Sensors. Use the procedure in Section 10.3 of
Method 2 to calibrate in-stack temperature sensors. Dial
thermometers, such as are used for the DGM and condenser outlet,
shall be calibrated against mercury-in-glass thermometers. An
alternative mercury-free NIST-traceable thermometer may be used if
the thermometer is, at a minimum, equivalent in terms of performance
or suitably effective for the specific temperature measurement
application.
    10.6 Barometer. Calibrate against a mercury barometer or NIST-
traceable barometer prior to the field test. Alternatively,
barometric pressure may be obtained from a weather report that has
been adjusted for the test point (on the stack) elevation.
* * * * *
    <IP_ADDRESS> * * *

[GRAPHIC] [TIFF OMITTED] TP09JA12.035

* * * * *
    16.3 Alternative Post-Test Metering System Calibration. The
following procedure may be used as an alternative to the post-test
calibration described in Section 10.3.2. This alternative procedure
does not detect leakages between the inlet of the metering system
and the dry gas meter. Therefore, two steps must be included to make
it an equivalent alternative: (1) The metering system must pass the
post-test leak-check from either the inlet of the sampling train or
the inlet of the metering system. Therefore, if the train fails the
former leak-check, another leak-check from the inlet of the metering
system must be conducted; (2) The metering system must pass the
leak-check of that portion of the train from the pump to the orifice
meter as described in Section <IP_ADDRESS>.
    16.3.1 After each test run, do the following:
    <IP_ADDRESS> Ensure that the metering system has passed the post-
test leak-check. If not, conduct a leak-check of the metering system
from its inlet.
    <IP_ADDRESS> Conduct the leak-check of that portion of the train
from the pump to the orifice meter as described in Section <IP_ADDRESS>.
    <IP_ADDRESS> Calculate Yqa for each test run using the
following equation:
[GRAPHIC] [TIFF OMITTED] TP09JA12.036

Where:

Yqa = Dry gas meter calibration check value,
dimensionless.
0.0319 = (29.92/528)(0.75)\2\(in. Hg/[deg]R) cfm\2\.
[Delta]H@ = Orifice meter calibration coefficient, in.
H2O.
Md = Dry molecular weight of stack gas, lb/lb-mole.
29 = Dry molecular weight of air, lb/lb-mole.

    16.3.2 After each test run series, do the following:
    <IP_ADDRESS> Average the three or more Yqa's obtained
from the test run series and compare this average Yqa
with the dry gas meter calibration factor Y. The average
Yqa must be within 5 percent of Y.
    <IP_ADDRESS> If the average Yqa does not meet the 5
percent criterion, recalibrate the meter over the full range of
orifice settings as detailed in Section 10.3.1. Then follow the
procedure in Section 10.3.3.
* * * * *

17.0 References

* * * * *
    13. Shigehara, Roger T., P.G. Royals, and E.W. Steward.
``Alternative Method 5 Post-Test Calibration.'' Entropy
Incorporated, Research Triangle Park, NC 27709.
* * * * *
    32. Amend Method 5A of Appendix A-3 to Part 60 by revising Section
8.1 to read as follows:

Method 5A--Determination of Particulate Matter Emissions From the
Asphalt Processing and Asphalt Roofing Industry

* * * * *
    8.1 Pretest Preparation. Unless otherwise specified, maintain
and calibrate all components according to the procedure described in
APTD-0576, ``Maintenance, Calibration, and Operation of Isokinetic
Source-Sampling Equipment'' (Reference 3 in Method 5, Section 17.0).
Alternative mercury-free thermometers may be used if the
thermometers are, at a minimum, equivalent in terms of performance
or suitably effective for the specific temperature measurement
application.
* * * * *
    33. Amend Method 5E of Appendix A-3 to Part 60 as follows:
    a. By redesignating Sections 16 and 17 as Sections 17 and 18.
    b. By adding a new Section 16.

Method 5E--Determination of Particulate Matter Emissions From the Wool
Fiberglass Insulation Manufacturing Industry

* * * * *

16.0 Alternative Procedures

    16.1 Total Organic Carbon Analyzer. Tekmar-Dohrmann analyzers
using the single injection technique may be used as an alternative
to Rosemount Model 2100A analyzers.
* * * * *
    34. Amend Method 5H of Appendix A-3 to Part 60 as follows:
    a. By revising Section 12.1.
    b. By adding Section 12.15.
    c. By redesignating Sections 16 and 17 as Sections 17 and 18,
respectively.
    d. By adding a new Section 16.

Method 5H--Determination of Particulate Matter Emissions From Wood
Heaters From a Stack Location

* * * * *
    12.1 Nomenclature.

A = Sample flow rate adjustment factor.
BR = Dry wood burn rate, kg/hr (lb/hr), from Method 28, Section 8.3.
Bws = Water vapor in the gas stream, proportion by
volume.
Ci = Tracer gas concentration at inlet, ppmv.
Co = Tracer gas concentration at outlet, ppmv.
Cs = Concentration of particulate matter in stack gas,
dry basis, corrected to standard conditions, g/dscm (g/dscf).
E = Particulate emission rate, g/hr (lb/hr).
[Delta]H = Average pressure differential across the orifice meter
(see Figure 5H-1), mm H2O (in. H2O).
La = Maximum acceptable leakage rate for either a post-
test leak-check or for a leak-check following a component change;
equal to 0.00057 cmm (0.020 cfm) or 4 percent of the average
sampling rate, whichever is less.
L1 = Individual leakage rate observed during the leak-
check conducted before a component change, cmm (cfm).
Lp = Leakage rate observed during the post-test leak-
check, cmm (cfm).
mn = Total amount of particulate matter collected, mg.
Ma = Mass of residue of solvent after evaporation, mg.
NC = Grams of carbon/gram of dry fuel (lb/lb), equal to
0.0425.
NT = Total dry moles of exhaust gas/kg of dry wood
burned, g-moles/kg (lb-moles/lb).
PR = Percent of proportional sampling rate.
Pbar = Barometric pressure at the sampling site, mm Hg
(in.Hg).
Pstd = Standard absolute pressure, 760 mm Hg (29.92
in.Hg).
Qi = Gas volumetric flow rate at inlet, cfm (l/min).
Qo = Gas volumetric flow rate at outlet, cfm (l/min).
* * * * *
    12.15 Alternative Tracer Gas Flow Rate Determination.
    [GRAPHIC] [TIFF OMITTED] TP09JA12.037

    Note:  This gives Q for a single instance only. Repeated
multiple determinations are needed to track temporal variations.
Very small variations in Qi, Ci, or
Co may give very large variations in Qo.

* * * * *

16.0 Alternative Procedures

    16.1 Alternative Stack Gas Volumetric Flow Rate Determination
(Tracer Gas).
    16.1.1 Apparatus.
    <IP_ADDRESS> Tracer Gas Injector System. This is to inject a known
concentration of tracer gas into the stack. This system consists of
a cylinder of tracer gas, a gas cylinder

regulator, a stainless steel needle valve or a flow controller, a
nonreactive (stainless steel or glass) rotameter, and an injection
loop to disperse the tracer gas evenly in the stack.
    <IP_ADDRESS> Tracer Gas Probe. A glass or stainless steel sampling
probe.
    <IP_ADDRESS> Gas Conditioning System. A gas conditioning is a system
suitable for delivering a cleaned sample to the analyzer consisting
of a filter to remove particulate and a condenser capable of
lowering the dew point of the sample gas to less than 5 [deg]C (40
[deg]F). A desiccant such as anhydrous calcium sulfate may be used
to dry the sample gas. Desiccants which react or absorb tracer gas
or stack gas may not be used, e.g. silica gel absorbs
CO2.
    <IP_ADDRESS> Pump. An inert (i.e., stainless steel or Teflon head)
pump to deliver more than the total sample required by the
manufacturer's specifications for the analyzer used to measure the
downstream tracer gas concentration.
    <IP_ADDRESS> Gas Analyzer. A gas analyzer is any analyzer capable of
measuring the tracer gas concentration in the range necessary at
least every 10 minutes. A means of controlling the analyzer flow
rate and a device for determining proper sample flow rate shall be
provided unless data is provided to show that the analyzer is
insensitive to flow variations over the range encountered during the
test. The gas analyzer needs to meet or exceed the flowing
performance specifications:

------------------------------------------------------------------------

------------------------------------------------------------------------
Linearity..........................   1 percent of full
                                      scale.
Calibration Error..................  <= 2 percent of span.
Response Time......................  <= 10 seconds.
Zero Drift (24 hour)...............  <= 2 percent of full scale.
Span Drift (24 hour)...............  <= 2 percent of full scale.
Resolution.........................  <= 0.5 percent of span.
------------------------------------------------------------------------

    <IP_ADDRESS> Recorder (optional). To provide a permanent record of
the analyzer output.
    16.1.2 Reagents.
    <IP_ADDRESS> Tracer Gas. The tracer gas is sulfur hexafluoride in an
appropriate concentration for accurate analyzer measurement or pure
sulfur dioxide. The gas used must be nonreactive with the stack
effluent and give minimal (< 3 percent) interference to measurement
by the gas analyzer.
    16.1.3 Procedure. Select upstream and downstream locations in
the stack or duct for introducing the tracer gas and delivering the
sampled gas to the analyzer. The inlet location should be 8 or more
duct diameters beyond any upstream flow disturbance. The outlet
should be 8 or more undisturbed duct diameters from the inlet and 2
or more duct diameters from the duct exit. After installing the
apparatus, meter a known concentration of the tracer gas into the
stack at the inlet location. Use the gas sample probe and analyzer
to show that no stratification of the tracer gas is found in the
stack at the measurement locations. Monitor the tracer gas
concentration from the outlet location and record the concentration
at 10-minute intervals or more often at the option of the tester. A
minimum of three measured intervals is recommended to determine the
stack gas volumetric flow rate. Other statistical procedures may be
applied for complete flow characterization and additional QA/QC.
* * * * *
    35. Amend Method 6 of Appendix A-4 to Part 60 by revising Sections
10.2 and 10.4 to read as follows:

Appendix A-4 to Part 60--Test Methods 6 through 10B

* * * * *

Method 6--Determination of Sulfur Dioxide Emissions From Stationary
Sources

* * * * *
    10.2 Temperature Sensors. Calibrate against mercury-in-glass
thermometers. An alternative mercury-free thermometer may be used if
the thermometer is, at a minimum, equivalent in terms of performance
or suitably effective for the specific temperature measurement
application.
* * * * *
    10.4 Barometer. Calibrate against a mercury barometer or NIST-
traceable barometer prior to the field test.
* * * * *
    36. Amend Method 6C of Appendix A-4 to Part 60 by revising Sections
4.0 and 8.3 to read as follows:

Method 6C--Determination of Sulfur Dioxide Emissions From Stationary
Sources (Instrumental Analyzer Procedure)

* * * * *

4.0 Interferences

    Refer to Section 4.0 of Method 7E.
* * * * *
    8.3 Interference Check. You must follow the procedures of
Section 8.2.7 of Method 7E to conduct an interference check,
substituting SO2 for NOX as the method
pollutant. For dilution-type measurement systems, you must use the
alternative interference check procedure in Section 16 and a co-
located, unmodified Method 6 sampling train. Quenching in
fluorescence analyzers must be evaluated and remedied unless a
dilution system and ambient-level analyzer is used. This may be done
by preparing the calibration gas to contain within 1 percent of the
absolute oxygen and carbon dioxide content of the measured gas,
preparing the calibration gas in air and using vendor nomographs, or
by other acceptable means.
* * * * *
    37. Amend Method 7 of Appendix A-4 to Part 60 by revising Sections
4.0, 10.2, and 10.3 to read as follows:

Method 7--Determination of Nitrogen Oxide Emissions From Stationary
Sources

* * * * *

4.0 Interferences

    Biased results have been observed when sampling under conditions
of high sulfur dioxide concentrations. At or above 2100 ppm
SO2, use five times the H2O2
concentration of the Method 7 absorbing solution. Laboratory tests
have shown that high concentrations of SO2 (about 2100
ppm) cause low results in Method 7 and 7A. Increasing the
H2O2 concentration to five times the original
concentration eliminates this bias. However, when no SO2
is present, increasing the concentration by five times results in a
low bias.
* * * * *
    10.2 Barometer. Calibrate against a mercury barometer or NIST-
traceable barometer prior to the field test.
    10.3 Temperature Gauge. Calibrate dial thermometers against
mercury-in-glass thermometers. An alternative mercury-free
thermometer may be used if the thermometer is, at a minimum,
equivalent in terms of performance or suitably effective for the
specific temperature measurement application.
* * * * *
    38. Amend Method 7A of Appendix A-4 to Part 60 by revising Sections
4.0 and 10.4 to read as follows:

Method 7A--Determination of Nitrogen Oxide Emissions From Stationary
Sources (Ion Chromatographic Method)

* * * * *

4.0 Interferences

    Biased results have been observed when sampling under conditions
of high sulfur dioxide concentrations. At or above 2100 ppm
SO2, use five times the H2O2
concentration of the Method 7 absorbing solution. Laboratory tests
have shown that high concentrations of SO2 (about 2100
ppm) cause low results in Method 7 and 7A. Increasing the
H2O2 concentration to five times the original
concentration eliminates this bias. However, when no SO2
is present, increasing the concentration by five times results in a
low bias.
* * * * *
    10.4 Temperature Gauge. Calibrate dial thermometers against
mercury-in-glass thermometers. An alternative mercury-free
thermometer may be used if the thermometer is, at a minimum,
equivalent in terms of performance or suitably effective for the
specific temperature measurement application.
* * * * *
    39. Amend Method 7E of Appendix A-4 to Part 60 as follows:
    a. By revising Section 6.1.
    b. By revising Section 7.1.1.
    c. By revising Sections 8.1.2 and 8.2.5.
    d. By revising Section 16.2.2.

Method 7E--Determination of Nitrogen Oxides Emissions From Stationary
Sources (Instrumental Analyzer Procedure)

* * * * *
    6.1 What do I need for the measurement system? You may use any
equipment and supplies meeting the following specifications:
    (1) Sampling system components that are not evaluated in the
system bias or system calibration error test must be glass, Teflon,
or stainless steel. Other materials are potentially acceptable,
subject to approval by the Administrator.
    (2) The interference, calibration error, and system bias
criteria must be met.

    (3) Sample flow rate must be maintained within 10 percent of the
flow rate at which the system response time was measured.
    (4) All system components (excluding sample conditioning
components, if used) must maintain the sample temperature above the
moisture dew point. Ensure minimal contact between any condensate
and the sample gas. Section 6.2 provides example equipment
specifications for a NOX measurement system. Figure 7E-1
is a diagram of an example dry-basis measurement system that is
likely to meet the method requirements and is provided as guidance.
For wet-basis systems, you may use alternative equipment and
supplies as needed (some of which are described in Section 6.2),
provided that the measurement system meets the applicable
performance specifications of this method.
* * * * *
    7.1.1 High-Level Gas. This concentration is chosen to set the
calibration span as defined in Section 3.4. Choose this high-level
concentration so that emission measurements will be within 20 to 100
percent of this concentration.
* * * * *
    8.1.2 Determination of Stratification. Perform a stratification
test at each test site to determine the appropriate number of sample
traverse points. If testing for multiple pollutants or diluents at
the same site, a stratification test using only one pollutant or
diluent satisfies this requirement. A stratification test is not
required for small stacks that are less than 4 inches in diameter.
To test for stratification, use a probe of appropriate length to
measure the NOX (or pollutant of interest) concentration
at 12 traverse points located according to Table 1-1 or Table 1-2 of
Method 1. Alternatively, you may measure at three points on a line
passing through the centroidal area. Space the three points at 16.7,
50.0, and 83.3 percent of the measurement line. Sample for a minimum
of twice the system response time (see Section 8.2.6) at each
traverse point. Calculate the individual point and mean
NOX concentrations. If the concentration at each traverse
point differs from the mean concentration for all traverse points by
no more than: (a)  5.0 percent of the mean
concentration; or (b)  0.5 ppm (whichever is less
restrictive), the gas stream is considered unstratified and you may
collect samples from a single point that most closely matches the
mean. If the 5.0 percent or 0.5 ppm criterion is not met, but the
concentration at each traverse point differs from the mean
concentration for all traverse points by no more than: (a)  10.0 percent of the mean; or (b)  1.0 ppm
(whichever is less restrictive), the gas stream is considered to be
minimally stratified, and you may take samples from three points.
Space the three points at 16.7, 50.0, and 83.3 percent of the
measurement line. Alternatively, if a 12-point stratification test
was performed and the emissions shown to be minimally stratified
(all points within  10.0 percent of their mean or within
 1.0 ppm), and if the stack diameter (or equivalent
diameter for a rectangular stack or duct) is greater than 2.4 meters
(7.8 ft), then you may use 3-point sampling and locate the three
points along the measurement line exhibiting the highest average
concentration during the stratification test at 0.4, 1.2, and 2.0
meters from the stack or duct wall. If the gas stream is found to be
stratified because the 10.0 percent or 1.0 ppm criterion for a 3-
point test is not met, locate 12 traverse points for the test in
accordance with Table 1-1 or Table 1-2 of Method 1. This
stratification test may not be meaningful at sources with temporally
varying emissions or where emission concentrations are low. In these
cases, the stratification test is not required.
* * * * *
    8.2.5 Initial System Bias and System Calibration Error Checks.
Before sampling begins, determine whether the high-level or mid-
level calibration gas best approximates the emissions and use it as
the upscale gas. Introduce the upscale gas at the probe upstream of
all sample conditioning components in system calibration mode.
Record the time it takes for the measured concentration to increase
to a value that is within 95 percent or 0.5 ppm (whichever is less
restrictive) of a stable response for both the low-level and upscale
gases. Continue to observe the gas concentration reading until it
has reached a final, stable value. Record this value on a form
similar to Table 7E-2.
* * * * *
    16.2.2 Bag Procedure. Perform the analyzer calibration error
test to document the calibration (both NO and NOX modes,
as applicable). Fill a Tedlar or equivalent bag approximately half
full with either ambient air, pure oxygen, or an oxygen standard gas
with at least 19.5 percent by volume oxygen content. Fill the
remainder of the bag with mid- to high-level NO in N2 (or
other appropriate concentration) calibration gas. (Note that the
concentration of the NO standard should be sufficiently high enough
for the diluted concentration to be easily and accurately measured
on the scale used. The size of the bag should be large enough to
accommodate the procedure and time required. Contact the bag
manufacturer for guidance on the applicability of Tedlar equivalent
materials for NO.)
* * * * *
    40. Amend Method 8 of Appendix A-4 to Part 60 as follows:
    a. By revising Sections 11.2.1 and 11.2.2.
    b. By revising two definitions in Section 12.1.
    c. By revising Figure 8-1.

Method 8--Determination of Sulfuric Acid Mist and Sulfur Dioxide
Emissions From Stationary Sources

* * * * *
    11.2.1 Container No. 1. Shake the container holding the
isopropanol solution and the filter. If the filter breaks up, allow
the fragments to settle for a few minutes before removing a sample
aliquot. For determination of SO3/
H2SO4 concentration, pipette a 10-ml aliquot
of this solution into a 250-ml Erlenmeyer flask, add 2 to 4 drops of
thorin indicator, and titrate to a pink endpoint using 0.0100 N
barium standard solution. Repeat the titration with a second aliquot
of sample, and average the titration values. Replicate titrations
must agree within 1 percent or 0.2 ml, whichever is greater.
    11.2.2 Container No. 2. Thoroughly mix the solution in the
container holding the contents of the second and third impingers.
For determination of SO2 concentration, pipette a 100-ml
aliquot of sample into a 250-ml Erlenmeyer flask. Add 40 ml of
isopropanol, 2 to 4 drops of thorin indicator, and titrate to a pink
endpoint using 0.0100 N barium standard solution. Repeat the
titration with a second aliquot of sample, and average the titration
values. Replicate titrations must agree within 1 percent or 0.2 ml,
whichever is greater.
* * * * *
    12.1 * * *

Va = Volume of sample aliquot titrated, 10 ml for
H2SO4 and 100 ml for SO2.
Vsoln = Total volume of solution in which the sample is
contained, 1000 ml for the SO2 sample and 250 ml for the
H2SO4 sample.
* * * * *
* * * * *

[GRAPHIC] [TIFF OMITTED] TP09JA12.038

* * * * *
    41. Amend Method 10 of Appendix A-4 to Part 60 by revising Sections
6.2.5 and 8.4.2 to read as follows:

Method 10--Determination of Carbon Monoxide Emissions From Stationary
Sources

* * * * *
    6.2.5 Flexible Bag. Tedlar, or equivalent, with a capacity of 60
to 90 liters (2 to 3 ft \3\). (Contact the bag manufacturer for
guidance on the applicability of Tedlar equivalent materials for the
compound of interest.) Leak-test the bag in the laboratory before
using by evacuating with a pump followed by a dry gas meter. When
the evacuation is complete, there should be no flow through the
meter. Gas tanks may be used in place of bags if the samples are
analyzed within one week.
* * * * *
    8.4.2 Integrated Sampling. Evacuate the flexible bag. Set up the
equipment as shown in Figure 10-1 with the bag disconnected. Place
the probe in the stack and purge the sampling line. Connect the bag,
making sure that all connections are leak-free. Sample at a rate
proportional to the stack velocity. If needed, the CO2
content of the gas may be determined by using the Method 3
integrated sample procedures, or by weighing an ascarite
CO2 removal tube used and computing CO2
concentration from the gas volume sampled and the weight gain of the
tube. Data may be recorded on a form similar to Table 10-1. If a
tank is used for sample collection, follow procedures similar to
those in Sections 8.1.2, 8.2.3, 8.3, and 12.4 of Method 25 as
appropriate to prepare the tank, conduct the sampling, and correct
the measured sample concentration.
* * * * *
    42. Amend Method 10A of Appendix A-4 to Part 60 as follows:
    a. By revising Section 2.0.
    b. By revising Sections 8.2.1 and 8.2.3.
    c. By revising Sections 11.1 and 11.2.
    d. By revising the narrative in Section 12.3.
    e. By revising Section 13.5.

Method 10A--Determination of Carbon Monoxide Emissions in Certifying
Continuous Emission Monitoring Systems at Petroleum Refineries

* * * * *

2.0 Summary of Method

    An integrated gas sample is extracted from the stack, passed
through an alkaline permanganate solution to remove sulfur oxides
and nitrogen oxides, and collected in a Tedlar or equivalent bag.
(Contact the bag manufacturer for guidance on the applicability of
Tedlar equivalent materials for the compound of interest.) The CO
concentration in the sample is measured spectrophotometrically using
the reaction of CO with p-sulfaminobenzoic acid.
* * * * *
    8.2.1 Evacuate the bag completely using a vacuum pump. Assemble
the apparatus as shown in Figure 10A-1. Loosely pack glass wool in
the tip of the probe. Place 400 ml of alkaline permanganate solution
in the first two impingers and 250 ml in the third. Connect the pump
to the third impinger, and follow this with the surge tank, rate
meter, and 3-way valve. Do not connect the bag to the system at this
time.
* * * * *
    8.2.3 Purge the system with sample gas by inserting the probe
into the stack and drawing the sample gas through the system at 300
ml/min 10 percent for 5 minutes. Connect the evacuated
bag to the system,

record the starting time, and sample at a rate of 300 ml/min for 30
minutes, or until the bag is nearly full. Record the sampling time,
the barometric pressure, and the ambient temperature. Purge the
system as described above immediately before each sample.
* * * * *
    11.1 Assemble the system shown in Figure 10A-3, and record the
information required in Table 10A-1 as it is obtained. Pipet 10.0 ml
of the colorimetric reagent into each gas reaction bulb, and attach
the bulbs to the system. Open the stopcocks to the reaction bulbs,
but leave the valve to the bag closed. Turn on the pump, fully open
the coarse-adjust flow valve, and slowly open the fine-adjust valve
until the pressure is reduced to at least 40 mm Hg. Now close the
coarse adjust valve, and observe the manometer to be certain that
the system is leak-free. Wait a minimum of 2 minutes. If the
pressure has increased less than 1 mm Hg, proceed as described
below. If a leak is present, find and correct it before proceeding
further.
    11.2 Record the vacuum pressure (Pv) to the nearest 1
mm Hg, and close the reaction bulb stopcocks. Open the bag valve,
and allow the system to come to atmospheric pressure. Close the bag
valve, open the pump coarse adjust valve, and evacuate the system
again. Repeat this fill/evacuation procedure at least twice to flush
the manifold completely. Close the pump coarse adjust valve, open
the bag valve, and let the system fill to atmospheric pressure. Open
the stopcocks to the reaction bulbs, and let the entire system come
to atmospheric pressure. Close the bulb stopcocks, remove the bulbs,
record the room temperature and barometric pressure
(Pbar, to nearest mm Hg), and place the bulbs on the
shaker table with their main axis either parallel to or
perpendicular to the plane of the table top. Purge the bulb-filling
system with ambient air for several minutes between samples. Shake
the samples for exactly 2 hours.
* * * * *
    12.3 CO Concentration in the Bag. Calculate Cb using
Equations 10A-2 and 10A-3. If condensate is visible in the bag,
calculate Bw using Table 10A-2 and the temperature and
barometric pressure in the analysis room. If condensate is not
visible, calculate Bw using the temperature and
barometric pressure at the sampling site. * * *
* * * * *
    13.5 Stability. The individual components of the colorimetric
reagent are stable for at least one month. The colorimetric reagent
must be used within two days after preparation to avoid excessive
blank correction. The samples in the bag should be stable for at
least one week if the bags are leak-free.
* * * * *
    43. Amend Method 10B of Appendix A-4 to Part 60 by revising
Sections 2.1 and 6.2.3, and by revising the narrative in Section 12.2
to read as follows:

Method 10B--Determination of Carbon Monoxide Emissions From Stationary
Sources

* * * * *
    2.1 An integrated gas sample is extracted from the sampling
point, passed through a conditioning system to remove interferences,
and collected in a Tedlar or equivalent bag. (Contact the bag
manufacturer for guidance on the applicability of Tedlar equivalent
materials for the compound of interest.) The CO is separated from
the sample by gas chromatography (GC) and catalytically reduced to
methane (CH4) which is determined by flame ionization
detection (FID). The analytical portion of this method is identical
to applicable sections in Method 25 detailing CO measurement.
* * * * *
    6.2.3 Sample Injection System. Same as in Method 25, Section
<IP_ADDRESS>, equipped to accept a sample line from the bag.
* * * * *
    12.2 CO Concentration in the Bag. Calculate Cb using
Equations 10B-1 and 10B-2. If condensate is visible in the bag,
calculate Bw using Table 10A-2 of Method 10A and the
temperature and barometric pressure in the analysis room. If
condensate is not visible, calculate Bw using the
temperature and barometric pressure at the sampling site. * * *
* * * * *
    44. Amend Method 11 of Appendix A-5 to Part 60 by revising Sections
8.5 and 10.1.2 to read as follows:

Appendix A-5 to Part 60--Test Methods 11 Through 15A

* * * * *

Method 11--Determination of Hydrogen Sulfide Content of Fuel Gas
Streams in Petroleum Refineries

* * * * *
    8.5 Sample for at least 10 minutes. At the end of the sampling
time, close the sampling valve, and record the final volume and
temperature readings. Conduct a leak-check as described in Section
8.2. A yellow color in the final cadmium sulfate impinger indicates
depletion of the absorbing solution. An additional cadmium sulfate
impinger should be added for subsequent samples and the sample with
yellow color in the final impinger should be voided.
* * * * *
    10.1.2 Temperature Sensors. Calibrate against mercury-in-glass
thermometers. An alternative mercury-free thermometer may be used if
the thermometer is at a minimum equivalent in terms of performance
or suitably effective for the specific temperature measurement
application.
* * * * *
    45. Amend Method 12 of Appendix A-5 to Part 60 by revising Section
16.1 and adding Sections 16.4, 16.4.1, and 16.4.2 to read as follows:

Method 12--Determination of Inorganic Lead Emissions From Stationary
Sources

* * * * *
    16.1 Simultaneous Determination of Particulate Matter and Lead
Emissions. Method 12 may be used to simultaneously determine Pb
provided: (1) acetone is used to remove particulate from the probe
and inside of the filter holder as specified by Method 5, (2) 0.1 N
HNO3 is used in the impingers, (3) a glass fiber filter
with a low Pb background is used, and (4) the entire train contents,
including the impingers, are treated and analyzed for Pb as
described in Sections 8.0 and 11.0 of this method.
* * * * *
    16.4 Alternative Analyzer. Inductively coupled plasma-atomic
emission spectrometry (ICP-AES) may be used as an alternative to
atomic absorption analysis provided the following conditions are
met:
    16.4.1 Sample collection, sample preparation, and analytical
preparation procedures are as defined in the method except as
necessary for the ICP-AES application.
    16.4.2 The limit of quantitation for the ICP-AES must be
demonstrated, and the sample concentrations reported should be no
less than two times the limit of quantitation. The limit of
quantitation is defined as ten times the standard deviation of the
blank value. The standard deviation of the blank value is determined
from the analysis of seven blanks. It has been reported that for
mercury and those elements that form hydrides, a continuous-flow
generator coupled to an ICP-AES offers detection limits comparable
to cold vapor atomic absorption.
* * * * *
    46. Amend Method 14A of Appendix A-5 to Part 60 by adding a
sentence to the end of Section 10.1.1 to read as follows:

Method 14A -- Determination of Total Fluoride Emissions From Selected
Sources at Primary Aluminum Production Facilities

* * * * *
    10.1.1 Metering system. * * * Allowable tolerances for Y and
[Delta]H@ are given in Figure 5-5 of Method 5 of this appendix.
* * * * *
    47. Amend Method 16A of Appendix A-6 to Part 60 by revising Section
1.2 to read as follows:

Appendix A-6 to Part 60--Test Methods 16 Through 18

* * * * *

Method 16A--Determination of Total Reduced Sulfur Emissions From
Stationary Sources (Impinger Technique)

* * * * *
    1.2 Applicability. This method is applicable for the
determination of TRS emissions from recovery boilers, lime kilns,
and smelt dissolving tanks at kraft pulp mills, reduced sulfur
compounds (H2S, carbonyl sulfide, and carbon disulfide) from sulfur
recovery units at onshore natural gas processing facilities, and
from other sources when specified in an applicable subpart of the
regulations. The flue gas must contain at least 1 percent oxygen for
complete oxidation

of all TRS to SO2. Note: If sources other than kraft pulp
mills experience low oxygen levels in the emissions, the method
results may be biased low.
* * * * *
    48. Amend Method 18 of Appendix A-6 to Part 60 as follows:
    a. By revising Sections <IP_ADDRESS>.2, <IP_ADDRESS>, <IP_ADDRESS>.2.
    b. By adding <IP_ADDRESS>.2.2.
    c. By revising Sections <IP_ADDRESS>, and <IP_ADDRESS>.
    d. By revising the titles to Figures 18-3 and 18-10.

Method 18--Measurement of Gaseous Organic Compound Emissions by Gas
Chromatography

* * * * *
    <IP_ADDRESS>.2 Sampling Procedure. To obtain a sample, assemble the
sample train as shown in Figure 18-9. Leak-check both the bag and
the container. Connect the vacuum line from the needle valve to the
Teflon sample line from the probe. Place the end of the probe at the
centroid of the stack or at a point no closer to the walls than 1 m,
and start the pump. Set the flow rate so that the final volume of
the sample is approximately 80 percent of the bag capacity. After
allowing sufficient time to purge the line several times, connect
the vacuum line to the bag, and evacuate until the rotameter
indicates no flow. Then position the sample and vacuum lines for
sampling, and begin the actual sampling, keeping the rate
proportional to the stack velocity. As a precaution, direct the gas
exiting the rotameter away from sampling personnel. At the end of
the sample period, shut off the pump, disconnect the sample line
from the bag, and disconnect the vacuum line from the bag container.
Record the source temperature, barometric pressure, ambient
temperature, sampling flow rate, and initial and final sampling time
on the data sheet shown in Figure 18-10. Protect the bag and its
container from sunlight. Record the time lapsed between sample
collection and analysis, and then conduct the recovery procedure in
Section 8.4.2.
* * * * *
    <IP_ADDRESS> Other Modified Bag Sampling Procedures. In the event
that condensation is observed in the bag while collecting the sample
and a direct interface system cannot be used, heat the bag during
collection and maintain it at a suitably elevated temperature during
all subsequent operations. (Note: Take care to leak-check the system
prior to the dilutions so as not to create a potentially explosive
atmosphere.) As an alternative, collect the sample gas, and
simultaneously dilute it in the bag.
* * * * *
    <IP_ADDRESS>.2 Second Alternative Procedure. Prefill the bag with a
known quantity of inert gas. Meter the inert gas into the bag
according to the procedure for the preparation of gas concentration
standards of volatile liquid materials (Section <IP_ADDRESS>), but
eliminate the midget impinger section. Take the partly filled bag to
the source, and meter the source gas into the bag through heated
sampling lines and a heated flowmeter, or Teflon positive
displacement pump. Verify the dilution factors before sampling each
bag through dilution and analysis of gases of known concentration.
* * * * *
    <IP_ADDRESS>.2.2 Analyze the two field audit samples as described in
Section 9.2 by connecting each bag containing an audit gas mixture
to the sampling valve. Calculate the results; record and report the
data to the audit supervisor.
* * * * *
    <IP_ADDRESS> Flexible Bags. Tedlar or equivalent, 10- and 50-liter
capacity, for preparation of standards. (Contact the bag
manufacturer for guidance on the applicability of Tedlar equivalent
materials for the compound of interest.)
* * * * *
    <IP_ADDRESS> Flexible Bag Procedure. Any leak-free plastic (e.g.,
Tedlar, Mylar, Teflon) or plastic-coated aluminum (e.g., aluminized
Mylar) bag, or equivalent, can be used to obtain the pre-survey
sample. Use new bags, and leak-check them before field use. In
addition, check the bag before use for contamination by filling it
with nitrogen or air and analyzing the gas by GC at high
sensitivity. Experience indicates that it is desirable to allow the
inert gas to remain in the bag about 24 hours or longer to check for
desorption of organics from the bag. Follow the leak-check and
sample collection procedures given in Section 8.2.1.
* * * * *

Figure 18-3. Preparation of Standards in Tedlar or Tedlar-Equlivalent
Bags and Calibration Curve

* * * * *
    Figure 18-10. Field Sample Data Sheet--Tedlar or Tedlar-
Equivalent Bag Collection Method
* * * * *
    49. Amend Method 23 of Appendix A-7 to Part 60 by revising Sections
2.2.7, <IP_ADDRESS>, and 4.2.7 to read as follows:

Appendix A-7 to Part 60--Test Methods 19 Through 25E

* * * * *

Method 23--Determination of Polychlorinated Dibenzo-p-Dioxins and
Polychlorinated Dibenzofurans From Stationary Sources

* * * * *
    2.2.7 Storage Container. Air-tight container to store silica
gel.
* * * * *
    <IP_ADDRESS> Sample Train. It is suggested that all components be
maintained according to the procedure described in APTD-0576.
Alternative mercury-free thermometers may be used if the
thermometers are, at a minimum, equivalent in terms of performance
or suitably effective for the specific temperature measurement
application.
* * * * *
    4.2.7 Silica Gel. Note the color of the indicating silica gel to
determine if it has been completely spent and make a mention of its
condition. Transfer the silica gel from the fifth impinger to its
original container and seal. If a moisture determination is made,
follow the applicable procedures in sections <IP_ADDRESS> and 11.2.3 of
Method 5 to handle and weigh the silica gel. If moisture is not
measured, the silica gel may be disposed.
* * * * *
    50. Amend Method 24 of Appendix A-7 to Part 60 by revising Section
11.2.2 to read as follows:

Method 24--Determination of Volatile Matter Content, Water Content,
Density, Volume Solids, and Weight Solids of Surface Coatings

* * * * *
    11.2.2 Volatile Content. To determine total volatile content,
use the apparatus and reagents described in ASTM D2369 (incorporated
by reference; see Sec.  60.17 for the approved versions of the
standard), respectively, and use the following procedures:
* * * * *
    51. Amend Method 25 of Appendix A-7 to Part 60 by revising Section
7.1.3 to read as follows:

Method 25--Determination of Total Gaseous Nonmethane Organic Emissions
as Carbon

* * * * *
    7.1.3 Filters. Glass fiber filters, without organic binder,
exhibiting at least 99.95 percent efficiency (< 0.05 percent
penetration) on 0.3 micron dioctyl phthalate smoke particles. The
filter efficiency test shall be conducted in accordance with ASTM
Method D2986-71, 78, or 95a (incorporated by reference--see Sec.
60.17). Test data from the supplier's quality control program are
sufficient for this purpose.
* * * * *
    52. Amend Method 25C of Appendix A-7 to Part 60 as follows:
    a. By revising Sections 6.1.
    b. By adding a new Section 8.2.3.
    c. By revising Section 12.1.
    d. By redesignating Equation 25C-2 in Section 12.3 as Equation 25C-
3.
    c. By redesignating Section 12.3 as Section 12.4.
    d. By adding new Section 12.3.

Method 25C--Determination of Nonmethane Organic Compounds (NMOC) in MSW
Landfill Gases

* * * * *
    6.1 Sample Probe. Stainless steel, with the bottom third
perforated. Teflon probe liners and sampling lines are also allowed.
Non-perforated probes are allowed as long as they are withdrawn to
create a gap equivalent to having the bottom third perforated. The
sample probe must be capped at the bottom and must have a threaded
cap with a sampling attachment at the top. The sample probe must be
long enough to go through and extend no less than 0.9 m (3 ft) below
the landfill cover. If the sample probe is to be driven into the
landfill, the bottom cap should be designed to facilitate driving
the probe into the landfill.
* * * * *

    8.2.3 Driven Probes. Closed-point probes may be driven directly
into the landfill in a single step. This method may not require
backfilling if the probe is adequately sealed by its insertion.
Unperforated probes that are inserted in this manner and withdrawn a
distance from a detachable tip to create an open space are also
acceptable.
* * * * *
    12.1 Nomenclature.

Bw = Moisture content in the sample, fraction.
CN2 = Measured N2 concentration (by Method
3C), fraction.
CN2Corr = Measured N2 concentration corrected
for dilution, fraction.
Ct = Calculated NMOC concentration, ppmv C equivalent.
Ctm = Measured NMOC concentration, ppmv C equivalent.
Pb = Barometric pressure, mm Hg.
Pt = Gas sample tank pressure after sampling, but before
pressurizing, mm Hg absolute.
Ptf = Final gas sample tank pressure after pressurizing,
mm Hg absolute.
Pti = Gas sample tank pressure after evacuation, mm Hg
absolute.
Pw = Vapor pressure of H2O (from Table 25C-1),
mm Hg.
r = Total number of analyzer injections of sample tank during
analysis (where j = injection number, 1 * * * r).
Tt = Sample tank temperature at completion of sampling,
[deg]K.
Tti = Sample tank temperature before sampling, [deg]K.
Ttf = Sample tank temperature after pressurizing, [deg]K.
* * * * *
    12.3 Measured N2 Concentration Correction. Use the
following equation to correct the measured concentration of
N2 as determined by Method 3C for dilution.
[GRAPHIC] [TIFF OMITTED] TP09JA12.039

* * * * *
    53. Amend Method 25D of Appendix A-7 to Part 60 by revising the
first sentence in Section 9.1 to read as follows:

Method 25D--Determination of the Volatile Organic Concentration of
Waste Samples

* * * * *
    9.1 Quality Control Samples. If audit samples are not available,
prepare and analyze the two types of quality control samples (QCS)
listed in Sections 9.1.1 and 9.1.2. * * *
* * * * *
    54. Amend Method 26 of Appendix A-8 as follows:
    a. By revising Sections 6.1.1 and 8.1.2.
    b. By redesignating Sections 16 and 17 as Sections 17 and 18,
respectively.
    c. By adding a new Section 16.

Appendix A-8 to Part 60--Test Methods 26 Through 30B

* * * * *

Method 26--Determination of Hydrogen Halide and Halogen Emissions From
Stationary Sources Non-Isokinetic Method

* * * * *
    6.1.1 Probe. Borosilicate glass, approximately \3/8\-in. (9-mm)
I.D. with a heating system capable of maintaining a probe gas
temperature during sampling of 120  14 [deg]C (248
 25 [deg]F) to prevent moisture condensation; or Teflon
where stack probes are below 210 [deg]C. If HF is a target analyte,
then preconditioning of new teflon components by heating should be
considered to prevent potential HF outgassing. A Teflon-glass filter
in a mat configuration should be installed in the gas stream, not
the filter box, to remove particulate matter from the gas stream
(see Section 6.1.6).
* * * * *
    8.1.2 Adjust the probe temperature and the temperature of the
filter and the stopcock (i.e., the heated area in Figure 26-1) to a
temperature sufficient to prevent water condensation. This
temperature should be greater than 120 [deg]C (248 [deg]F). The
temperature should be monitored throughout a sampling run to ensure
that the desired temperature is maintained. It is important to
maintain a temperature around the probe and filter of greater than
120 [deg]C (248 [deg]F) since it is extremely difficult to purge
acid gases off these components. (These components are not
quantitatively recovered and, hence, any collection of acid gases on
these components would result in potential underreporting of these
emissions. The applicable subparts may specify alternative higher
temperatures.)
* * * * *

16.0 Alternative Procedures

    Method 26A. Method 26A, which uses isokinetic sampling
equipment, is an acceptable alternative to Method 26.
* * * * *
    55. Amend Method 29 of Appendix A-8 as follows:
    a. By redesignating Sections 16 and 17 as Sections 17 and 18,
respectively.
    b. By adding a new Section 16.

Method 29--Determination of Metals Emissions From Stationary Sources

* * * * *

16.0 Alternative Procedures

    16.1 Alternative Analyzer. Samples may also be analyzed by cold
vapor atomic fluorescence spectrometry.
* * * * *
    56. Amend Method 30B of Appendix A-8 to Part 60 as follows:
    a. By revising the first paragraph in Section <IP_ADDRESS>.
    b. By revising Table 9-1 in Section 9.
    c. By revising Section 10.3.
    d. By revising the first paragraph in Section 11.3.

Method 30B--Determination of Total Vapor Phase Mercury Emissions From
Coal-Fired Combustion Sources Using Carbon Sorbent Traps

* * * * *
    <IP_ADDRESS> Determination of Minimum Calibration Concentration or
Mass. Based on your instrument's sensitivity and linearity,
determine the calibration concentrations or masses that make up a
representative low level calibration range. Verify that you are able
to meet the multipoint calibration performance criteria in section
11.0 of this method. Select a calibration concentration or mass that
is no less than 2 times the lowest concentration or mass in your
calibration curve. The lowest point in your calibration curve must
be at least 5, and preferably 10, times the Method Detection Limit
(MDL), which is the minimum amount of the analyte that can be
detected and reported. The MDL must be determined at least once for
the analytical system using an MDL study such as that found in
section 15.0 of the EPA Method 301 (76 FR 28673, 5/18/2011). * * *
* * * * *

9.0 Quality Assurance and Quality Control

* * * * *

                      Table 9-1--Quality Assurance/Quality Control Criteria for Method 30B
----------------------------------------------------------------------------------------------------------------
     QA/QC test or specification         Acceptance criteria           Frequency         Consequences if not met
----------------------------------------------------------------------------------------------------------------
Gas flow meter calibration (At 3       Calibration factor (Yi)  Prior to initial use     Recalibrate at 3 points
 settings or points).                   at each flow rate must   and when post-test       until the acceptance
                                        be within    check is not within      criteria are met.
                                        2% of the average         5% of Y.
                                        value (Y).
Gas flow meter post-test calibration   Calibration factor (Yi)  After each field test.   Recalibrate gas flow
 check (Single-point).                  must be within  5% of the Y       must be done on-site,    determine a new value
                                        value from the most      using stack gas.         of Y. For mass flow
                                        recent 3-point                                    meters, must be done
                                        calibration.                                      on-site, using stack
                                                                                gas. Apply the new Y
                                                                                value to the field
                                                                                test data.
Temperature sensor calibration.......  Absolute temperature     Prior to initial use     Recalibrate; sensor may
                                        measures by sensor       and before each test     not be used until
                                        within       thereafter.              specification is met.
                                        1.5% of a reference
                                        sensor.
Barometer calibration................  Absolute pressure        Prior to initial use     Recalibrate; instrument
                                        measured by instrument   and before each test     may not be used until
                                        within  10   thereafter.              specification is met.
                                        mm Hg of reading with
                                        a mercury barometer or
                                        NIST traceable
                                        barometer.
Pre-test leak check..................  <= 4% of target          Prior to sampling......  Sampling shall not
                                        sampling rate.                                    commence until the
                                                                                leak check is passed.
Post-test leak check.................  <= 4% of average         After sampling.........  Sample invalidated.*
                                        sampling rate.
Analytical matrix interference test    Establish minimum        Prior to analyzing any   Field sample results
 (wet chemical analysis, only).         dilution (if any)        field samples; repeat    not validated.
                                        needed to eliminate      for each type of
                                        sorbent matrix           sorbent used.
                                        interferences.
Analytical bias test.................  Average recovery         Prior to analyzing       Field samples shall not
                                        between 90% and 110%     field samples and        be analyzed until the
                                        for Hg\0\ and HgCl2 at   prior to use of new      percent recovery
                                        each of the 2 spike      sorbent media.           criteria has been met.
                                        concentration levels.
Multipoint analyzer calibration......  Each analyzer reading    On the day of analysis,  Recalibrate until
                                        within       before analyzing any     successful.
                                        10% of true value and    samples.
                                        r\2\>= 0.99.
Analysis of independent calibration    Within  10%  Following daily          Recalibrate and repeat
 standard.                              of true value.           calibration, prior to    independent standard
                                                                 analyzing field          analysis until
                                                                 samples.                 successful.
Analysis of continuing calibration     Within 10%   Following daily          Recalibrate and repeat
 verification standard (CCVS).          of true value.           calibration, after       independent standard
                                                                 analyzing <= 10 field    analysis, reanalyze
                                                                 samples, and at end of   samples until
                                                                 each set of analyses.    successful, if
                                                                                possible; for
                                                                                destructive
                                                                                techniques, samples
                                                                                invalidated.
Test run total sample volume.........  Within  20%  Each individual sample.  Sample invalidated.
                                        of total volume
                                        sampled during field
                                        recovery test.
Sorbent trap section 2 breakthrough..  For compliance/          Every sample...........  Sample invalidated.*
                                        emissions testing:
                                       <= 10% of section 1 Hg
                                        mass for Hg
                                        concentrations > 1
                                        [mu]g/dscm;
                                       <= 20% of section 1 Hg
                                        mass for Hg
                                        concentrations <= 1
                                        [mu]g/dscm
                                       For relative accuracy
                                        testing:
                                       <= 10% of section 1 Hg
                                        mass for Hg
                                        concentrations > 1
                                        [mu]g/dscm;
                                       <= 20% of section 1 Hg
                                        mass for Hg
                                        concentrations <= 1
                                        [mu]g/dscm and > 0.5
                                        [mu]g/dscm;
                                       <= 50% of section 1 Hg
                                        mass for Hg
                                        concentrations <= 0.5
                                        [mu]g/dscm > 0.1 [mu]g/
                                        dscm;
                                       No criterion for Hg
                                        concentrations <= 0.1
                                        [micro]g/dscm (must
                                        meet all other QA/QC
                                        specifications).
Paired sorbent trap agreement........  <= 10% Relative          Every run..............  Run invalidated.*
                                        Deviation (RD) mass
                                        for Hg concentrations
                                        > 1 [mu]g/dscm;
                                       <= 20% RD or <= 0.2
                                        [mu]g/dscm absolute
                                        difference for Hg
                                        concentrations <= 1
                                        [mu]g/dscm.
Sample analysis......................  Within valid             All Section 1 samples    Reanalyze at more
                                        calibration range        where stack Hg           concentrated level if
                                        (within calibration      concentration is >=      possible, samples
                                        curve).                  0.5 [mu]g/dscm.          invalidated if not
                                                                                within calibrated
                                                                                range.
Sample analysis......................  Within bounds of Hg\0\   All Section 1 samples    Expand bounds of Hg\0\
                                        and HgCl2 Analytical     where stack Hg           and HgCl2 Analytical
                                        Bias Test.               concentration is >=      Bias Test; if not
                                                                 0.5 [mu]g/dscm.          successful, samples
                                                                                invalidated.

Field recovery test..................  Average recovery         Once per field test....  Field sample runs not
                                        between 85% and 115%                              validated without
                                        for Hg\0\.                                        successful field
                                                                                recovery test.
----------------------------------------------------------------------------------------------------------------
* And data from the pair of sorbent traps are also invalidated.

* * * * *
    10.3 Thermocouples and Other Temperature Sensors. Use the
procedures and criteria in Section 10.3 of Method 2 in Appendix A-1
to this part to calibrate in-stack temperature sensors and
thermocouples. Dial thermometers shall be calibrated against
mercury-in-glass thermometers or equivalent. * * *
* * * * *
    11.3 Field Sample Analyses. Analyze the sorbent trap samples
following the same procedures that were used for conducting the
Hg\0\ and HgCl2 analytical bias tests. The individual
sections of the sorbent trap and their respective components must be
analyzed separately (i.e., section 1 and its components, then
section 2 and its components). All sorbent trap section 1 sample
analyses must be within the calibrated range of the analytical
system as specified in Table 9-1. For wet analyses, the sample can
simply be diluted to fall within the calibrated range. However, for
the destructive thermal analyses, samples that are not within the
calibrated range cannot be re-analyzed. As a result, the sample
cannot be validated, and another sample must be collected. It is
strongly suggested that the analytical system be calibrated over
multiple ranges so that thermally analyzed samples do fall within
the calibrated range. The total mass of Hg measured in each sorbent
trap section 1 must also fall within the lower and upper mass limits
established during the initial Hg\0\ and HgCl2 analytical
bias test. If a sample is analyzed and found to fall outside of
these limits, it is acceptable for an additional Hg\0\ and
HgCl2 analytical bias test to be performed that now
includes this level. However, some samples (e.g., the mass collected
in trap section 2), may have Hg levels so low that it may not be
possible to quantify them in the analytical system's calibrated
range. Because a reliable estimate of these low-level Hg
measurements is necessary to fully validate the emissions data, the
MDL (see section <IP_ADDRESS> of this method) is used to establish the
minimum amount that can be detected and reported. If the measured
mass or concentration is below the lowest point in the calibration
curve and above the MDL, the analyst must do the following: Estimate
the mass or concentration of the sample based on the analytical
instrument response relative to an additional calibration standard
at a concentration or mass between the MDL and the lowest point in
the calibration curve. This is accomplished by establishing a
response factor (e.g., area counts per Hg mass or concentration) and
estimating the amount of Hg present in the sample based on the
analytical response and this response factor. * * *
* * * * *
    57. Amend Performance Specification 1 of Appendix B to Part 60 by
revising Section 3.5 to read as follows:

Appendix B to Part 60--Performance Specifications

* * * * *

Performance Specification 1--Specifications and Test Procedures for
Continuous Opacity Monitoring Systems in Stationary Sources

* * * * *
    3.5 Full Scale. The maximum data display output of the COMS. For
purposes of recordkeeping and reporting, full scale will be greater
than 80 percent opacity.

    Note: ``Full scale'' means ``span.''

* * * * *
    58. Amend Performance Specification 3 of Appendix B to Part 60 by
revising Section 13.2 to read as follows:

Performance Specification 3--Specifications and Test Procedures for
O2 and CO2 Continuous Emission Monitoring Systems
in Stationary Sources

* * * * *
    13.2 CEMS Relative Accuracy Performance Specification. The RA of
the CEMS must be no greater than 20 percent of the mean value of the
RM test data or 1.0 percent O2 or CO2,
whichever is greater.
* * * * *
    59. Amend Performance Specification 4 of Appendix B to Part 60 by
revising Section 8.2 to read as follows:

Performance Specification 4--Specifications and Test Procedures for
Carbon Monoxide Continuous Emission Monitoring Systems in Stationary
Sources

* * * * *
    8.2 Reference Methods. Unless otherwise specified in an
applicable subpart of the regulation, Method 10, 10A, 10B, or other
approved alternative are the RM for this PS.
* * * * *
    60. Amend Performance Specification 4B of Appendix B to Part 60 by
revising Section 7.1.1 to read as follows:

Performance Specification 4B--Specifications and Test Procedures for
Carbon Monoxide and Oxygen Continuous Monitoring Systems in Stationary
Sources

* * * * *
    7.1.1 Calculations. Summarize the results on a data sheet.
Average the differences between the instrument response and the
certified cylinder gas value for each gas. Calculate the CE results
for the CO monitor according to:
    CE = [bond] d/FS [bond] x 100 (1)
    Where d is the mean difference between the CEMS response and the
known reference concentration, and FS is the span value. The CE for
the O2 monitor is the average percent O2
difference between the O2 monitor and the certified
cylinder gas value for each gas.
* * * * *
    61. Amend Performance Specification 7 of Appendix B to Part 60 by
revising Section 8.4 and adding a reference to the end of Section 16.0.
to read as follows:

Performance Specification 7--Specifications and Test Procedures for
Hydrogen Sulfide Continuous Emission Monitoring Systems in Stationary
Sources

* * * * *
    8.4 Relative Accuracy Test Procedure.
    8.4.1 Sampling Strategy for RM Tests, Number of RM Tests,
Correlation of RM and CEMS Data, and Calculations. These are the
same as that in PS-2, Sections 8.4.3 (except as specified below),
8.4.4, 8.4.5, and 8.4.6, respectively.
    8.4.2 Reference Methods. Unless otherwise specified in an
applicable subpart of the regulation, Methods 11, 15, and 16 may be
used for the RM for this PS.
    <IP_ADDRESS> Sampling Time Per Run--Method 11. A sampling run, when
Method 11 (integrated sampling) is used, shall consist of a single
measurement for at least 10 minutes and 0.010 dscm (0.35 dscf). Each
sample shall be taken at approximately 30-minute intervals.
    <IP_ADDRESS> Sampling Time Per Run--Methods 15 and 16. The sampling
run shall consist of two injections equally spaced over a 30-minute
period following the procedures described in the particular method.

    Note: Caution! Heater or non-approved electrical probes should
not be used around explosive or flammable sources.

* * * * *

16.0 References

* * * * *
    5. Letter to RAMCON Environmental Corp. from Robert Kellam,
December 27, 1992.
* * * * *
    62. Amend Performance Specification 11 of Appendix B to Part 60 by
revising Sections 12.1(1) and (2) to read as follows:

Performance Specification 11--Specifications and Test Procedures for
Particulate Matter Continuous Emission Monitoring Systems at Stationary
Sources

* * * * *
    12.1 * * *
    (1) Calculate the upscale drift (UD) using Equation 11-1:
    [GRAPHIC] [TIFF OMITTED] TP09JA12.040

Where:

UD = The upscale (high-level) drift of your PM CEMS in percent,
RCEM= The measured PM CEMS response to the upscale
reference standard, and
RU= The pre-established numerical value of the upscale
reference standard.
FS = Full-scale value.

    (2) Calculate the zero drift (ZD) using Equation 11-2:
    [GRAPHIC] [TIFF OMITTED] TP09JA12.041

Where:
ZD = The zero (low-level) drift of your PM CEMS in percent,
RCEM= The measured PM CEMS response to the zero reference
standard,
RL = The pre-established numerical value of the zero
reference standard, and
FS = Full-scale value.
* * * * *
    63. Amend Performance Specification 15 of Appendix B to Part 60 by
revising Sections <IP_ADDRESS>.2 and <IP_ADDRESS>.3 to read as follows:

Performance Specification 15--Performance Specification for Extractive
FTIR Continuous Emission Monitoring Systems in Stationary Sources

* * * * *
    <IP_ADDRESS>.2 RMs Using a Grab Sampling Technique. Synchronize the
RM and FTIR CEM measurements as closely as possible. For a grab
sampling RM, record the volume collected and the exact sampling
period for each sample. Synchronize the FTIR CEM so that the FTIR
measures a spectrum of a similar cell volume at the same time as the
RM grab sample was collected. Measure at least five independent
samples with both the FTIR CEM and the RM for each of the minimum
nine runs. Compare the run concentration averages by using the
relative accuracy analysis procedure in Performance Specification 2
of Appendix B of 40 CFR part 60.
    <IP_ADDRESS>.3 Continuous Emission Monitors as RMs. If the RM is a
CEM, synchronize the sampling flow rates of the RM and the FTIR CEM.
Each run is at least 1 hour long and consists of at least 10 FTIR
CEM measurements and the corresponding 10 RM measurements (or
averages). For the statistical comparison, use the relative accuracy
analysis procedure in Performance Specification 2 of Appendix B of
40 CFR part 60. If the RM time constant is < \1/2\ the FTIR CEM time
constant, brief fluctuations in analyte concentrations that are not
adequately measured with the slower FTIR CEM time constant can be
excluded from the run average along with the corresponding RM
measurements. However, the FTIR CEM run average must still include
at least 10 measurements over a 1-hour period.
* * * * *
    64. Amend Performance Specification 16 of Appendix B to Part 60 by
revising Sections 6.1.7, 8.2.1, 9.1, 9.3, 9.4, 12.4, and 13.5 to read
as follows:

Performance Specification 16--Specifications and Test Procedures for
Predictive Emission Monitoring Systems in Stationary Sources

* * * * *
    6.1.7 Sensor Location and Repair. We recommend you install
sensors in an accessible location in order to perform repairs and
replacements. Permanently-installed platforms or ladders may not be
needed. If you install sensors in an area that is not accessible,
you may be required to shut down the emissions unit to repair or
replace a sensor. Conduct a new RATA after replacing a sensor that
supplies a critical PEMS parameter if the new sensor provides a
different output or scaling or changes the historical training
dataset of the PEMS. Replacement of a non-critical sensor that does
not cause an impact in the accuracy of the PEMS does not trigger a
RATA. All sensors must be calibrated as often as needed but at least
as often as recommended by the manufacturers.
* * * * *
    8.2.1 Reference Methods. Unless otherwise specified in the
applicable regulations, you must use the test methods in Appendix A
of this part for the RM test. Conduct the RM tests at three
operating levels. The RM tests shall be performed at a low-load (or
production) level between the minimum safe, stable load and 50
percent of the maximum level load, at the mid-load level (an
intermediary level between the low and high levels), and at a high-
load level between 80 percent and the maximum load. Alternatively,
if practicable, you may test at three levels of the key operating
parameter (e.g. selected based on a covariance analysis between each
parameter and the PEMS output) equally spaced within the normal
range of the parameter.
* * * * *
    9.1 QA/QC Summary. Conduct the applicable ongoing tests listed
below.

                                         Ongoing Quality Assurance Tests
----------------------------------------------------------------------------------------------------------------
                 Test                  PEMS regulatory purpose       Acceptability              Frequency
----------------------------------------------------------------------------------------------------------------
Sensor Evaluation....................  All....................  .......................  Daily.
RAA..................................  Compliance.............  3-test avg <= 10% of     Each quarter except
                                                                 simultaneous analyzer    quarter when RATA
                                                                 or RM average.           performed.
RATA.................................  All....................  Same as for RA in Sec.   Yearly in quarter when
                                                                 13.1.                    RAA not performed.
Bias Correction......................  All....................  If davg <=               Bias test passed (no
                                                                 [bond]cc[bond].          correction factor
                                                                                needed).
PEMS Training........................  All....................  If Fcritical >= Fr >=    Optional after initial
                                                                 0.8.                     and subsequent RATAs.

Sensor Evaluation Alert Test           All....................  See Section 6.1.8......  After each PEMS
 (optional).                                                                              training.
----------------------------------------------------------------------------------------------------------------

* * * * *
    9.3 Quarterly Relative Accuracy Audits. In the first year of
operation after the initial certification, perform a RAA consisting
of at least three 30-minute portable analyzer or RM determinations
each quarter a RATA is not performed. To conduct a RAA, follow the
procedures in Section 8.2 for the relative accuracy test, except
that only three sets of measurement data are required, and the
statistical tests are not required. The average of the three or more
portable analyzer or RM determinations must not exceed the limits
given in Section 13.5. Report the data from all sets of measurement
data. If a PEMS passes all quarterly RAAs in the first year and also
passes the subsequent yearly RATA in the second year, you may elect
to perform a single mid-year RAA in the second year in place of the
quarterly RAAs. This option may be repeated, but only until the PEMS
fails either a mid-year RAA or a yearly RATA. When such a failure
occurs, you must resume quarterly RAAs in the quarter following the
failure and continue conducting quarterly RAAs until the PEMS
successfully passes both a year of quarterly RAAs and a subsequent
RATA.
    9.4 Yearly Relative Accuracy Test. Perform a minimum 9-run RATA
at the normal operating level on a yearly basis in the quarter that
the RAA is not performed. The statistical tests in Section 8.3 are
not required for the yearly RATA.
* * * * *
    12.4 Relative Accuracy Audit. Calculate the quarterly RAA using
Equation 16-9.
[GRAPHIC] [TIFF OMITTED] TP09JA12.042

* * * * *
    13.5 Relative Accuracy Audits. The average of the three portable
analyzer or RM determinations must not differ from the simultaneous
PEMS average value by more than 10 percent of the analyzer or RM for
concentrations greater than 100 ppm or 20 percent for concentrations
between 100 and 20 ppm, or the test is failed. For measurements at
20 ppm or less, this difference must not exceed 2 ppm for a
pollutant PEMS and 1 percent absolute for a diluents PEMS.
* * * * *
    65. Amend Procedure 1 of Appendix F to Part 60 by revising Section
6.2 to read as follows:

Appendix F to Part 60--Quality Assurance Procedures

Procedure 1--Quality Assurance Requirements for Gas Continuous Emission
Monitoring Systems Used for Compliance Determination

* * * * *
    6.2 RAA Accuracy Calculation. Use the calculation procedure in
the relevant performance specification to calculate the accuracy for
the RAA. The RAA must be calculated in the units of the applicable
emission standard.
* * * * *
    66. Amend Procedure 2 of Appendix F to Part 60 by revising
paragraphs (3) and (4) in Section 12.0 to read as follows:

Procedure 2--Quality Assurance Requirements for Particulate Matter
Continuous Emission Monitoring Systems at Stationary Sources

* * * * *
    12.0 * * *
    (3) How do I calculate daily upscale and zero drift? You must
calculate the upscale drift using Equation 2-2 and the zero drift
using Equation 2-3:
[GRAPHIC] [TIFF OMITTED] TP09JA12.043

Where:

UD = The upscale drift of your PM CEMS, in percent,
RCEM = Your PM CEMS response to the upscale check value,
and
RU = The upscale check value.
FS = Full-scale value.
[GRAPHIC] [TIFF OMITTED] TP09JA12.044

Where:

ZD = The zero (low-level) drift of your PM CEMS, in percent,
RCEM = Your PM CEMS response of the zero check value,
RL = The zero check value, and

    (4) How do I calculate SVA accuracy? You must use Equation 2-4
to calculate the accuracy, in percent, for each of the three SVA
tests or the daily sample volume check:
[GRAPHIC] [TIFF OMITTED] TP09JA12.045

Where:

VM = Sample gas volume determined/reported by your PM
CEMS (e.g., dscm),
VR = Sample gas volume measured by the independent
calibrated reference device (e.g., dscm) for the SVA or the
reference value for the daily sample volume check.

    Note:  Before calculating SVA accuracy, you must correct the
sample gas volumes measured by your PM CEMS and the independent
calibrated reference device to the same basis of temperature,
pressure, and moisture content. You must document all data and
calculations.

* * * * *
    67. Amend Procedure 5 of Appendix F to Part 60 by redesignating the
second listing of Section 6.2.6 as Section 6.2.7.

PART 61--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS

    68. The authority citation for Part 61 continues to read as
follows:

    Authority:  42 U.S.C. 7401, et seq.

    69. Amend Sec.  61.13 by revising paragraph (e)(1)(i) to read as
follows:

Sec.  61.13  Emission tests and waiver of emission tests.

* * * * *
    (e) * * *
    (1) * * *
    (i) The source owner, operator, or representative of the tested
facility shall obtain an audit sample, if commercially available, from
an AASP for each test method used for regulatory compliance purposes.
No audit samples are required for the following test methods: Methods
3A and 3C of Appendix A-3 of Part 60; Methods 6C, 7E, 9, and 10 of
Appendix A-4 of Part 60; Method 18 and 19 of Appendix A-6 of Part 60;
Methods 20, 22, and 25A of Appendix A-7 of Part 60; and Methods 303,
318, 320, and 321 of Appendix A of Part 63. If multiple sources at a
single facility are tested during a compliance test event, only one
audit sample is required for each method used during a compliance test.
The compliance authority responsible for the compliance test may waive
the requirement to include an audit sample if they believe that an
audit sample is not necessary. ``Commercially available'' means that
two or more independent AASPs have blind audit samples available for
purchase. If the source owner, operator, or representative cannot find
an audit sample for a specific method, the owner, operator, or
representative shall consult the EPA Web site at the following URL,
www.epa.gov/ttn/emc, to confirm whether there is a source that can
supply an audit sample for that method. If the EPA Web site does not
list an available audit sample at least 60 days prior to the beginning
of the compliance test, the source owner, operator, or representative
shall not be required to include an audit sample as part of the quality
assurance program for the compliance test. When ordering an audit
sample, the source owner, operator, or representative shall give the
sample provider an estimate for the concentration of each pollutant
that is emitted by the source or the estimated concentration of each
pollutant based on the permitted level and the name, address, and phone
number of the compliance authority. The source owner, operator, or
representative shall report the results for the audit sample along with
a summary of the emission test results for the audited pollutant to the
compliance authority and shall report the results of the audit sample
to the AASP. The source owner, operator, or representative shall make
both reports at the same time and in the same manner or shall report to
the compliance authority first and report to the AASP. If the method
being audited is a method that allows the samples to be analyzed in the
field and the tester plans to analyze the samples in the field, the
tester may analyze the audit samples prior to collecting the emission
samples provided a representative of the compliance authority is
present at the testing site. The tester may request, and the compliance
authority may grant, a waiver to the requirement that a representative
of the compliance authority must be present at the testing site during
the field analysis of an audit sample. The source owner, operator, or
representative may report the results of the audit sample to the
compliance authority and then report the results of the audit sample to
the AASP prior to collecting any emission samples. The test protocol
and final test report shall document whether an audit sample was
ordered and utilized and the pass/fail results as applicable.
* * * * *
    70. Amend Sec.  61.33 by revising paragraph (a) to read as follows:

Sec.  61.33  Stack sampling.

    (a) Unless a waiver of emission testing is obtained under Sec.
61.13, each owner or operator required to comply with Sec.  61.32(a)
shall test emissions from the source according to Method 104 of
Appendix B to this part or according to Method 29 of Appendix A to Part
60. Method 103 of Appendix B to this part is approved by the
Administrator as an alternative method for sources subject to Sec.
61.32(a). The emission test shall be performed:
    (1) Within 90 days of the effective date in the case of an existing
source or a new source which has an initial startup date preceding the
effective date; or
    (2) Within 90 days of startup in the case of a new source which did
not have an initial startup date preceding the effective date.
* * * * *
    71. Amend Sec.  61.42 by revising paragraph (a) to read as follows:

Sec.  61.42  Emission standard.

    (a) Emissions to the atmosphere from rocket-motor test sites shall
not cause time-weighted atmospheric concentrations of beryllium to
exceed 75 microgram minutes per cubic meter ([mu]g-min/m \3\) (4.68 x
10-9 pound minutes per cubic foot (lb-min/ft \3\)) of air
within the limits of 10 to 60 minutes, accumulated during any 2
consecutive weeks, in any area in which an adverse effect to public
health could occur.
* * * * *
    72. Amend Sec.  61.53 by revising paragraph (d)(2) to read as
follows:

Sec.  61.53  Stack sampling.

* * * * *
    (d) * * *
    (2) Method 101A in Appendix B or Method 29 in Appendix A to part 60
shall be used to test emissions as follows:
* * * * *
    73. Amend Sec.  61.164 by revising paragraphs (d)(2)(i), (e)(1)(i),
and (e)(2) to read as follows:

Sec.  61.164  Test methods and procedures.

* * * * *
    (d) * * *
    (2) * * *
    (i) Use Method 108 in Appendix B to this part or Method 29 in
Appendix A to part 60 for determining the arsenic emission rate, g/hr
(lb/hr). The emission rate shall equal the arithmetic mean of the
results of three 60-minute test runs.
* * * * *
    (e) * * *
    (1) * * *
    (i) Use Method 108 in Appendix B to this part or Method 29 in
Appendix A to part 60 to determine the concentration of arsenic in the
gas streams entering and exiting the control device. Conduct three 60-
minute test runs, each consisting of simultaneous testing of the inlet
and outlet gas streams. The gas streams shall contain all the gas
exhausted from the glass melting furnace.
* * * * *
    (2) Calculate the percent emission reduction for each run as
follows:

[GRAPHIC] [TIFF OMITTED] TP09JA12.046

Where:

D = the percent emission reduction.
Cb = the arsenic concentration of the stack gas entering
the control device, as measured by Method 108 or Method 29.
Ca = the arsenic concentration of the stack gas exiting
the control device, as measured by Method 108 or Method 29.
* * * * *
    74. Amend Method 101 of Appendix B to Part 61 by redesignating
Sections 16 and 17 as Sections 17 and 18, respectively; and by adding a
new Section 16 to read as follows:

Appendix B to Part 61--Test Methods

* * * * *

Method 101--Determination of Particulate and Gaseous Mercury Emissions
From Chlor-Alkali Plants (Air Streams)

* * * * *

16.0 Alternative Procedures

    16.1 Alternative Analyzer. Samples may also be analyzed by cold
vapor atomic fluorescence spectrometry.
* * * * *
    75. Amend Method 101A of Appendix B to Part 61 by redesignating
Sections 16 and 17 as Sections 17 and 18, respectively; and by adding a
new Section 16 to read as follows:

Method 101A--Determination of Particulate and Gaseous Mercury Emissions
From Sewage Sludge Incinerators

* * * * *

16.0 Alternative Procedures

    16.1 Alternative Analyzers.
    16.1.1 Inductively coupled plasma-atomic emission spectrometry
(ICP-AES) may be used as an alternative to atomic absorption
analysis provided the following conditions are met:
    <IP_ADDRESS> Sample collection, sample preparation, and analytical
preparation procedures are as defined in the method except as
necessary for the ICP-AES application.
    <IP_ADDRESS> The quality control procedures are conducted as
prescribed.
    <IP_ADDRESS> The limit of quantitation for the ICP-AES must be
demonstrated and the sample concentrations reported should be no
less than two times the limit of quantitation. The limit of
quantitation is defined as ten times the standard deviation of the
blank value. The standard deviation of the blank value is determined
from the analysis of seven blanks. It has been reported that for
mercury and those elements that form hydrides, a continuous-flow
generator coupled to an ICP-AES offers detection limits comparable
to cold vapor atomic absorption.
    6.1.2 Samples may also be analyzed by cold vapor atomic
fluorescence spectrometry.
* * * * *
    76. Amend Method 102 in Appendix B to Part 61 by revising Section
<IP_ADDRESS> to read as follows:

Method 102--Determination of Particulate and Gaseous Mercury Emissions
From Chlor-Alkali Plants (Hydrogen Streams)

* * * * *
    <IP_ADDRESS> Calibrate the meter box orifice. Use the techniques
described in APTD-0576 (see Reference 9 in Section 17.0 of Method 5
of Appendix A to Part 60). Calibration of the orifice meter at flow
conditions that simulate the conditions at the source is suggested.
Calibration should either be done with hydrogen or with some other
gas having a similar Reynolds Number so that there is similarity
between the Reynolds Numbers during calibration and during sampling.
Alternative mercury-free thermometers may be used if the
thermometers are, at a minimum, equivalent in terms of performance
or suitably effective for the specific temperature measurement
application.
* * * * *
    77. Amend Method 104 in Appendix B to Part 61 as follows:
    a. By revising Section 4.1.
    b. By revising Section 11.5.3.
    c. By redesignating Sections 16 and 17 as Sections 17 and 18
respectively.
    d. By adding a new Section 16.

Method 104--Determination of Beryllium Emissions From Stationary
Sources

* * * * *
    4.1 Matrix Effects. Analysis for Be by flame atomic absorption
spectrophotometry is sensitive to the chemical composition and to
the physical properties (e.g., viscosity, pH) of the sample.
Aluminum and silicon, in particular, are known to interfere when
present in appreciable quantities. The analytical procedure includes
(optionally) the use of the Method of Standard Additions to check
for these matrix effects, and sample analysis using the Method of
Standard Additions if significant matrix effects are found to be
present (see Reference 2 in Section 17.0).
* * * * *
    11.5.3 Check for Matrix Effects (optional). Use the Method of
Standard Additions (see Reference 2 in Section 17.0) to check at
least one sample from each source for matrix effects on the Be
results. If the results of the Method of Standard Additions
procedure used on the single source sample do not agree to within 5
percent of the value obtained by the routine atomic absorption
analysis, then reanalyze all samples from the source using the
Method of Standard Additions procedure.
* * * * *

16.0 Alternative Procedures

    16.1 Alternative Analyzer. Inductively coupled plasma-atomic
emission spectrometry (ICP-AES) may be used as an alternative to
atomic absorption analysis provided the following conditions are
met:
    16.1.1 Sample collection, sample preparation, and analytical
preparation procedures are as defined in the method except as
necessary for the ICP-AES application.
    16.1.2 Quality Assurance/Quality Control procedures, including
audit material analysis, are conducted as prescribed in the method.
The QA acceptance conditions must be met.
    16.1.3 The limit of quantitation for the ICP-AES must be
demonstrated and the sample concentrations reported should be no
less than two times the limit of quantitation. The limit of
quantitation is defined as ten times the standard deviation of the
blank value. The standard deviation of the blank value is determined
from the analysis of seven blanks. It has been reported that for
mercury and those elements that form hydrides, a continuous-flow
generator coupled to an ICP-AES offers detection limits comparable
to cold vapor atomic absorption.
* * * * *
    78. Amend Method 108 of Appendix B to Part 61 by redesignating
Sections 16 and 17 as Sections 17 and 18 respectively, and by adding a
new Section 16 to read as follows:

Method 108--Determination of Particulate and Gaseous Arsenic Emissions

* * * * *

16.0 Alternative Procedures

    16.1 Alternative Analyzer. Inductively coupled plasma-atomic
emission spectrometry (ICP-AES) may be used as an alternative to
atomic absorption analysis provided the following conditions are
met:
    16.1.1 Sample collection, sample preparation, and analytical
preparation procedures are as defined in the method except as
necessary for the ICP-AES application.
    16.1.2 Quality Assurance/Quality Control procedures, including
audit material analysis, are conducted as prescribed in the method.
The QA acceptance conditions must be met.
    16.1.3 The limit of quantitation for the ICP-AES must be
demonstrated and the sample concentrations reported should be no
less than two times the limit of quantitation. The limit of
quantitation is defined as ten times the standard deviation of the
blank value. The standard deviation of the blank value is determined
from the analysis of seven blanks. It has been reported that for
mercury and those elements that form hydrides, a continuous-flow
generator coupled to an ICP-AES offers detection limits comparable
to cold vapor atomic absorption.
* * * * *
    79. Amend Method 108A of Appendix B to Part 61 by redesignating
Sections 16 and 17 as Sections 17 and 18 respectively, and by adding a
new Section 16 to read as follows:

Method 108A--Determination of Arsenic Content in Ore Samples From
Nonferrous Smelters

* * * * *

16.0 Alternative Procedures

    16.1 Alternative Analyzer. Inductively coupled plasma-atomic
emission spectrometry (ICP-AES) may be used as an alternative to
atomic absorption analysis provided the following conditions are
met:
    16.1.1 Sample collection, sample preparation, and analytical
preparation procedures are as defined in the method except as
necessary for the ICP-AES application.
    16.1.2 Quality Assurance/Quality Control procedures, including
audit material analysis, are conducted as prescribed in the method.
The QA acceptance conditions must be met.
    16.1.3 The limit of quantitation for the ICP-AES must be
demonstrated and the sample concentrations reported should be no
less than two times the limit of quantitation. The limit of
quantitation is defined as ten times the standard deviation of the
blank value. The standard deviation of the blank value is determined
from the analysis of seven blanks. It has been reported that for
mercury and those elements that form hydrides, a continuous-flow
generator coupled to an ICP-AES offers detection limits comparable
to cold vapor atomic absorption.
* * * * *

PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS
FOR SOURCE CATEGORIES

    80. The authority citation for part 63 continues to read as
follows:

    Authority: 42 U.S.C. 7401 et seq.

    81. Amend Sec.  63.7 by revising paragraph (c)(2)(iii)(A) to read
as follows:

Sec.  63.7  Performance testing requirements.

* * * * *
    (c) * * *
    (2) * * *
    (iii) * * *
    (A) The source owner, operator, or representative of the tested
facility shall obtain an audit sample, if commercially available, from
an AASP for each test method used for regulatory compliance purposes.
No audit samples are required for the following test methods: Methods
3A and 3C of Appendix A-3 of Part 60; Methods 6C, 7E, 9, and 10 of
Appendix A-4 of Part 60; Methods 18 and 19 of Appendix A-6 of Part 60;
Methods 20, 22, and 25A of Appendix A-7 of Part 60; and Methods 303,
318, 320, and 321 of Appendix A of Part 63. If multiple sources at a
single facility are tested during a compliance test event, only one
audit sample is required for each method used during a compliance test.
The compliance authority responsible for the compliance test may waive
the requirement to include an audit sample if they believe that an
audit sample is not necessary. ``Commercially available'' means that
two or more independent AASPs have blind audit samples available for
purchase. If the source owner, operator, or representative cannot find
an audit sample for a specific method, the owner, operator, or
representative shall consult the EPA web site at the following URL,
www.epa.gov/ttn/emc, to confirm whether there is a source that can
supply an audit sample for that method. If the EPA web site does not
list an available audit sample at least 60 days prior to the beginning
of the compliance test, the source owner, operator, or representative
shall not be required to include an audit sample as part of the quality
assurance program for the compliance test. When ordering an audit
sample, the source owner, operator, or representative shall give the
sample provider an estimate for the concentration of each pollutant
that is emitted by the source or the estimated concentration of each
pollutant based on the permitted level and the name, address, and phone
number of the compliance authority. The source owner, operator, or
representative shall report the results for the audit sample along with
a summary of the emission test results for the audited pollutant to the
compliance authority and shall report the results of the audit sample
to the AASP. The source owner, operator, or representative shall make
both reports at the same time and in the same manner or shall report to
the compliance authority first and report to the AASP. If the method
being audited is a method that allows the samples to be analyzed in the
field and the tester plans to analyze the samples in the field, the
tester may analyze the audit samples prior to collecting the emission
samples provided a representative of the compliance authority is
present at the testing site. The tester may request, and the compliance
authority may grant, a waiver to the requirement that a representative
of the compliance authority must be present at the testing site during
the field analysis of an audit sample. The source owner, operator, or
representative may report the results of the audit sample to the
compliance authority and then report the results of the audit sample to
the AASP prior to collecting any emission samples. The test protocol
and final test report shall document whether an audit sample was
ordered and utilized and the pass/fail results as applicable.
* * * * *
    82. Amend Sec.  63.8 by adding a sentence to the end of paragraph
(f)(6)(iii) to read as follows:

Sec.  63.8  Monitoring requirements.

* * * * *
    (f) * * *
    (6) * * *
    (iii) * * * The Administrator will review the notification and may
rescind permission to use an alternative and require the owner or
operator to conduct a relative accuracy test of the CEMS as specified
in section 8.4 of Performance Specification 2.
* * * * *
    83. Amend Sec.  63.144 by adding paragraphs (b)(5)(i)(G) and
(b)(5)(i)(H) to read as follows:

Sec.  63.144  Process wastewater provisions--test methods and
procedures for determining applicability and Group 1/Group 2
determinations (determining which wastewater streams require control).

* * * * *
    (b) * * *
    (5) * * *
    (i) * * *
    (G) Method 8260B. Use procedures specified in Method 8260B in the
SW-846 Compendium of Methods.
    (H) Method 316. Use Method 316 to determine formaldehyde
concentration.
* * * * *
    84. Amend Sec.  63.344 by adding paragraph (c)(5) to read as
follows:

Sec.  63.344  Performance test requirements and test methods.

* * * * *
    (c) * * *
    (5) The South Coast Air Quality Management District (SCAQMD) Method
205.1 (which is available by contacting the South Coast AQMD, 21865
Copley Dr., Diamond Bar, CA 91765) may be used to determine the total
chromium concentration from hard and decorative chromium electroplating
tanks and chromium anodizing tanks.
* * * * *
    85. Amend Sec.  63.364 by revising paragraph (e) to read as
follows:

Sec.  63.364  Monitoring requirements.

* * * * *
    (e) Measure and record once per hour the ethylene oxide
concentration at the outlet to the atmosphere after any control device
according to the procedures specified in Sec.  63.365(c)(1). The owner
or operator shall compute and record a 24-hour average daily. The owner
or operator will install, calibrate, operate, and maintain a monitor
consistent with the requirements of performance specification (PS) 8 or
9 in 40 CFR part 60, Appendix B, to measure ethylene oxide. The daily
calibration requirements of section 7.2 of PS-9 or Section 13.1 of PS-8
are required only

on days when ethylene oxide emissions are vented to the control device.
* * * * *
    86. Amend Sec.  63.365 by revising paragraph (b) introductory text
to read as follows:

Sec.  63.365  Test methods and procedures.

* * * * *
    (b) Efficiency at the sterilization chamber vent. California Air
Resources Board (CARB) Method 431 or the following procedures shall be
used to determine the efficiency of all types of control devices used
to comply with Sec.  63.362(c), sterilization chamber vent standard.
* * * * *
    87. Amend Sec.  63.565 by revising paragraphs (d)(5), (8), and (10)
and (g) to read as follows:

Sec.  63.565  Test methods and procedures.

* * * * *
    (d) * * *
    (5) Recovery devices. The average VOC concentration in the vent
upstream and downstream of the control device shall be determined using
Method 25A or 25B of Appendix A to part 60 of this chapter for recovery
devices. The average VOC concentration shall correspond to the volume
measurement by taking into account the sampling system response time.
* * * * *
    (8) Where Method 25, 25A, or 25B is used to measure the percent
reduction in VOC, the percent reduction across the combustion or
recovery device shall be calculated as follows:
[GRAPHIC] [TIFF OMITTED] TP09JA12.047

Where:

R = control efficiency of control device, percent.
Ei = mass flow rate of VOC at the inlet to the combustion
or recovery device as calculated under paragraph (c)(7) of this
section, kg/hr.
Eo = mass flow rate of VOC at the outlet of the
combustion or recovery device, as calculated under paragraph (c)(7)
of this section, kg/hr.
* * * * *
    (10) Use of methods other than Method 25, 25A, or 25B shall be
validated pursuant to Method 301 of Appendix A to part 63 of this
chapter.
* * * * *
    (g) Baseline outlet VOC concentration. The procedures in this
paragraph shall be used to determine the outlet VOC concentration
required in Sec.  63.563(b)(4), (6), (7), and (8) for combustion
devices except flare, carbon adsorbers, condenser/refrigeration units,
and absorbers, respectively, and to monitor the VOC concentration as
required in Sec.  63.564(e), (g), (h), and (i). The owner or operator
shall use the procedures outlined in Method 25A or 25B. For the
baseline VOC concentration, the arithmetic average of the outlet VOC
concentration from three test runs from paragraph (d) of this section
shall be calculated for the control device. The VOC concentration shall
be measured at least every 15 minutes. Compliance testing of VOC CEMS
shall be performed using PS 8.
* * * * *
    88. Amend Sec.  63.750 by revising paragraph (o) to read as
follows:

Sec.  63.750  Test methods and procedures.

* * * * *
    (o) Inorganic HAP emissions--dry particulate filter certification
requirements. Dry particulate filters used to comply with Sec.
63.745(g)(2) or Sec.  63.746(b)(4) must be certified by the filter
manufacturer or distributor, paint/depainting booth supplier, and/or
the facility owner or operator using method 319 in Appendix A of this
part, to meet or exceed the efficiency data points found in Tables 1
and 2, or 3 and 4 of Sec.  63.745 for existing or new sources
respectively.
    89. Amend Sec.  63.1251 by revising the definition of ``Process
vent'' to read as follows:

Sec.  63.1251  Definitions.

* * * * *
    Process vent means a vent from a unit operation or vents from
multiple unit operations within a process that are manifolded together
into a common header, through which a HAP-containing gas stream is, or
has the potential to be, released to the atmosphere. Examples of
process vents include, but are not limited to, vents on condensers used
for product recovery, bottom receivers, surge control vessels,
reactors, filters, centrifuges, and process tanks. Emission streams
that are undiluted and uncontrolled containing less than 50 ppmv HAP,
as determined through process knowledge that no HAP are present in the
emission stream or using an engineering assessment as discussed in
Sec.  63.1257(d)(2)(ii); test data using Method 18 of 40 CFR part 60,
Appendix A; Method 320 of 40 CFR part 63; or any other test method that
has been validated according to the procedures in Method 301 of
Appendix A of this part, are not considered process vents. Process
vents do not include vents on storage tanks regulated under Sec.
63.1253, vents on wastewater emission sources regulated under Sec.
63.1256, or pieces of equipment regulated under Sec.  63.1255.
* * * * *
    90. Amend Sec.  63.1511 by revising paragraph (c)(9) as to read
follows:

Sec.  63.1511  Performance test/compliance demonstration general
requirements.

* * * * *
    (c) * * *
    (9) Method 26A for the concentration of HCl. Where a lime-injected
fabric filter is used as the control device to comply with the 90
percent reduction standard, the owner or operator must measure the
fabric filter inlet concentration of HCl at a point before lime is
introduced to the system. Method 26 may be used in place of Method 26A
where it can be demonstrated that there are no water droplets in the
emission stream. This can be demonstrated by showing that the vapor
pressure of water in the emission stream that you are testing is less
than the equilibrium vapor pressure of water at the emission stream
temperature, and by certifying that the emission stream is not
controlled by a wet scrubber.
* * * * *

Subpart CCCC--National Emission Standards for Hazardous Air
Pollutants: Manufacturing of Nutritional Yeast

    91. Subpart CCCC of Part 63 is amended by revising Table 2 to read
as follows:

 Table 2 to Subpart CCCC of Part 63--Requirements for Performance Tests
     [As stated in Sec.   63.2161, if you demonstrate compliance by
   monitoring brew ethanol, you must comply with the requirements for
performance tests in the following table (brew ethanol monitoring only)]
------------------------------------------------------------------------
For each fed-batch fermenter
   for which compliance is
  determined by monitoring
 brew ethanol concentration
     and calculating VOC                              According to the
    concentration in the           Using . . .            following
 fermenter exhaust according                         requirements . . .
  to the procedures in Sec.
   63.2161, you must . . .

------------------------------------------------------------------------
1. Measure VOC as propane...  Method 25A *, or an   You must measure the
                               alternative           VOC concentration
                               validated by EPA      in the fermenter
                               Method 301 * and      exhaust at any
                               approved by the       point prior to the
                               Administrator.        dilution of the
                                                     exhaust stream.
------------------------------------------------------------------------
* EPA Test Methods found in Appendix A of 40 CFR part 60.

Subpart UUUU--National Emission Standards for Hazardous Air
Pollutants for Cellulose Products Manufacturing

    92. Amend Subpart UUUU by revising Table 4 to read as follows:
    Table 4 to Subpart UUUU of Part 63--Requirements for Performance
Tests
    As required in Sec. Sec.  63.5530(b) and 63.5535(a), (b), (g)(1),
and (h)(1), you must conduct performance tests, other initial
compliance demonstrations, and CEMS performance evaluations and
establish operating limits according to the requirements in the
following table:

----------------------------------------------------------------------------------------------------------------
                                                                                According to the
            For . . .                  At . . .         You must . . .        Using . . .          following
                                                                                requirements . . .
----------------------------------------------------------------------------------------------------------------
1. the sum of all process vents.  a. each existing    i. select sampling  EPA Method 1 or 1A  sampling sites
                                   or new affected     port's location     in Appendix A to    must be located
                                   source.             and the number of   40 CFR Sec.         at the inlet and
                                                       traverse points;    63.7(d)(1)(i);      outlet to each
                                                                                control device;
                                                      ii. determine       EPA Method 2, 2A,   you may use EPA
                                                       velocity and        2C, 2D, 2F, or 2G   Method 2A, 2C,
                                                       volumetric flow     in Appendix A to    2D, 2F, or 2G as
                                                       rate;               part 60 of this     an alternative to
                                                                           chapter;            using EPA Method
                                                                                2, as
                                                                                appropriate;
                                                      iii. conduct gas    (1) EPA Method 3,   you may use EPA
                                                       analysis; and,.     3A, or 3B in        Method 3A or 3B
                                                                           Appendix A to       as an alternative
                                                                           part 60 of this     to using EPA
                                                                           chapter; or,        Method 3; or,
                                                                          (2) ASME PTC        you may use ASME
                                                                           19.101981--Part     PTC 19.10-1981--
                                                                           10; and,            Part 10
                                                                                (available for
                                                                                purchase from
                                                                                Three Park
                                                                                Avenue, New York,
                                                                                NY 10016-5990) as
                                                                                an alternative to
                                                                                using EPA Method
                                                                                3B.
                                                      iv. measure         EPA Method 4 in     ..................
                                                       moisture content    Appendix A to
                                                       of the stack gas.   part 60 of this
                                                                           chapter.
----------------------------------------------------------------------------------------------------------------
2. the sum of all viscose         a. each existing    i. measure total    (1) EPA Method 15   (a) you must
 process vents.                    or new viscose      sulfide emissions.  in Appendix A to    conduct testing
                                   process source.                         part 60 of this     of emissions at
                                                                           chapter; or         the inlet and
                                                                                outlet of each
                                                                                control device;
                                                                                (b) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                viscose process
                                                                                vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                viscose process
                                                                                vents at normal
                                                                                operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                Sec.
                                                                                63.7(e)(1) and
                                                                                63.5535;
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch viscose
                                                                                process vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                                (d) you must
                                                                                collect CPMS data
                                                                                during the period
                                                                                of the initial
                                                                                compliance
                                                                                demonstration and
                                                                                determine the
                                                                                CPMS operating
                                                                                limit during the
                                                                                period of the
                                                                                initial
                                                                                compliance
                                                                                demonstration; or
                                                                          (2) carbon          (a) you must
                                                                           disulfide and/or    measure emissions
                                                                           hydrogen sulfide    at the inlet and
                                                                           CEMS, as            outlet of each
                                                                           applicable;         control device
                                                                                using CEMS;

                                                                                (b) you must
                                                                                install, operate,
                                                                                and maintain the
                                                                                CEMS according to
                                                                                the applicable
                                                                                performance
                                                                                specification (PS-
                                                                                7, PS-8, PS-9, or
                                                                                PS-15) of 40 CFR
                                                                                part 60, Appendix
                                                                                B; and
                                                                                (c) you must
                                                                                collect CEMS
                                                                                emissions data at
                                                                                the inlet and
                                                                                outlet of each
                                                                                control device
                                                                                during the period
                                                                                of the initial
                                                                                compliance
                                                                                demonstration and
                                                                                determine the
                                                                                CEMS operating
                                                                                limit during the
                                                                                period of the
                                                                                initial
                                                                                compliance
                                                                                demonstration.
----------------------------------------------------------------------------------------------------------------
3. the sum of all solvent         a. each existing    i. measure toluene  (1) EPA Method 18   (a) you must
 coating process vents.            or new cellophane   emissions.          in Appendix A to    conduct testing
                                   operation.                              part 60 of this     of emissions at
                                                                           chapter, or         the inlet and
                                                                           Method 320 in       outlet of each
                                                                           appendix A to       control device;
                                                                           part 63, or        (b) you may use
                                                                                EPA Method 18 or
                                                                                320 to determine
                                                                                the control
                                                                                efficiency of any
                                                                                control device
                                                                                for organic
                                                                                compounds; for a
                                                                                combustion
                                                                                device, you must
                                                                                use only HAP that
                                                                                are present in
                                                                                the inlet to the
                                                                                control device to
                                                                                characterize the
                                                                                percent reduction
                                                                                across the
                                                                                combustion
                                                                                device;
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                solvent coating
                                                                                process vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                solvent coating
                                                                                process vents at
                                                                                normal operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                Sec.
                                                                                63.7(e)(1) and
                                                                                63.5535;
                                                                                (d) you must
                                                                                conduct testing