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Standard Test Method for Viscoelastic Properties of Paste Ink Vehicle Using an Oscillatory Rheometer
NORMA vydaná dňa 1.6.2020
Označenie normy: ASTM D7271-06(2020)
Dátum vydania normy: 1.6.2020
Kód tovaru: NS-997844
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
frequency sweep, G&apos,, G´, oscillatory rheometer, printing ink vehicles, rheology, tan delta, viscosity,, ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity), 87.080 (Inks. Printing inks)
|Significance and Use|


5.1 This test method has found acceptance in the lithographic ink industry in predicting rheological behavior of a vehicle under press conditions caused by extrusion, shear-thinning rollers and dot gain recovery.
5.2 This test method is restricted within the torque limitations and strain resolution of the rheometer used.
5.3 Results may not be reproducible if the vehicle is not homogenous.
|1. Scope|


1.1 This test method covers the procedure for determining the viscoelastic properties of printing ink vehicles by measuring the G', G", and tan delta using a controlled strain cone and plate oscillatory rheometer.
1.2 This test method provides the flexibility of using several different types of rheometers to determine viscoelastic properties in ink vehicles.
1.3 This test method is not intended for systems that are volatile at procedure temperatures as evaporation may occur effectively changing the percent solids before testing is finished and significantly altering the rheology.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
|2. Referenced Documents|


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