definition specific gravity
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Specific gravity Testing specific gravity of fuel. Specific gravity is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.
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Urine specific gravity Specific gravity, in the context of clinical pathology, is a urinalysis parameter commonly used in the evaluation of kidney function and can aid in the diagnosis of various renal diseases.ecreased specific gravity (hyposthenuria, i.e. decreased concentration of solutes in urine) may be associated with renal failure, pyelonephritis, diabetes insipidus, acute tubular necrosis, interstitial nephritis, and excessive fluid intake (e.g., psychogenic polydipsia).
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specific gravity specific gravity. the ratio of the density of any substance to the density of some other substance taken as standard, water being the standard for liquids and solids, and hydrogen or air being the standard for gases.
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Does hydrocodone show up on drug tests? The specific gravity of a liquid is defined as the ratio of the density of the substance being measured to the density of water at a specified temperature. Urine specific gravity is a measure of the amount of solutes (electrolytes, urea, etc.) present in the urine sample.
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Specific gravity Specific gravity can be measured in a number of value ways. The following illustration involving the use of the pycnometer is instructive. A pycnometer is simply a bottle which can be precisely filled to a specific, but not necessarily accurately known volume, .
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specific gravity The term specific gravity, symbolized sp gr, refers to the ratio of the density of a solid or liquid to the density of water at 4 degrees Celsius. The term can also refer to the ratio of the density of a gas to the density of dry air at standard temperature and pressure, although this specification is less often used. Specific gravity is a dimensionless quantity; that is, it is not expressed in units.
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- Specific gravity is the ratio of density of a substance compared to the density of fresh water at 4°C (39° F). At this temperature the density of water is at its greatest value and equal 1 g/mL. Since specific gravity is a ratio, so it has no units. An object will float in water if its density is less than the density of water and sink if its density is greater that that of water. Similarly, an object with specific gravity less than 1 will float and those with a specific gravity greater than one will sink. Specific gravity values for a few common substances are: Au, 19.3; mercury, 13.6; alcohol, 0.7893; benzene, 0.8786.
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Reference Range Urinary specific gravity is a measure of the concentration of solutes in the urine and provides information on the kidney’s ability to concentrate urine.rinary specific gravity is a measure of the concentration of solutes in the urine and provides information on the kidney’s ability to concentrate urine.
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- Symptoms of UTIs. Elderly people with serious urinary tract infection don't exhibit the hallmark sign of fever because their immune system is unable to mount a response to infection due to the effects of aging. In fact, elders often don't exhibit any of the common symptoms – or don't express them to their caregivers.
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specific gravity specific gravity n. The ratio of the mass of a solid or liquid to the mass of an equal volume of distilled water at 4°C (39°F) or of a gas to an equal volume of air or hydrogen under prescribed conditions of temperature and pressure.
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Reference Range Reference Range. Urinary specific gravity (SG) is a measure of the concentration of solutes in the urine. It measures the ratio of urine density compared with water density and provides information on the kidney’s ability to concentrate urine.
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Specific gravity The specific gravity of an object is the density of that object divided by the density of water. The density of water is 1,000 kilograms per meter cubed. For instance, the density of gold is 19,300 kilograms per meter cubed. So the specific gravity of gold is 19.3. The density of ketchup is 1,400 kilograms per meter cubed.
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- The specific gravity of an object is the ratio between the density of an object to a reference object. Usually, our reference object is water, which has a density of 1 g/mL or 1 g/cm^3.
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- specified in the individual monograph, the specific gravity is. the ratio of the weight of the liquid in air at the specified where ρ is the density of the liquid to be tested, M is the. temperature to that of an equal volume of water at the mass of the tube, and V is the volume of the filled tube. same temperature.
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How to Calculate the Specific Gravity of a Substance In physics, a substance’s specific gravity is the ratio of that substance’s density to the density of water at 4 degrees Celsius. Because the density of water at 4 degrees Celsius is 1,000 kg/m3, that ratio is easy to find. For example, the density of gold is 19,300 kg/m3, so its specific gravity is the following:
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- The term specific gravity means density in comparison to that of water. Density is weight divided by volume. So to get the volume, pour the oil into a graduated cylinder or me…asuring cup (same principle). To get the weight, use a scale (a chemist would use a triple beam balance).
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Definition of 'specific gravity' relative density. the ratio of the weight or mass of a given volume of a substance to that of an equal volume of another substance (water for liquids and solids, air or hydrogen for gases) used as a standard. Even if the waste has a specific gravity of water that's still more than four thousand dollars per drum.
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Fluids - Specific Gravities Fluids - Specific Gravities. Specific gravities for some common fluids like acetone, alcohol, turpentine, oil and more .. Specific Gravity - SG - is a dimensionless unit defined for liquids as the ratio of the density of the substance to the density of water at a specified temperature. For gases the Specific Gravity is related to air.
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Urine Specific Gravity Specific gravity measures the kidney's ability to concentrate or dilute urine in relation to plasma. Because urine is a solution of minerals, salts, and compounds dissolved in water, the specific gravity is greater than 1.000. The more concentrated the urine, the higher the urine specific gravity. An adult's kidneys have a remarkable ability to concentrate or dilute urine. In infants, the range for specific gravity is less because immature kidneys are not able to concentrate urine as effectively as mature kidneys.
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Specific gravity Since the density of dry air at 1013.25 mb at 20 °C is 0.001205 g·cm −3 and that of water is 0.998203 g·cm −3 the difference between true and apparent specific gravities for a substance with specific gravity (20°C/20°C) of about 1.100 would be 0.000120.
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specific viscosity specific viscosity. noun. 1. (physics) a measure of the resistance to flow of a fluid, expressed as the ratio of the absolute viscosity of the fluid to that of a reference fluid (usually water in the case of liquids) Discover our greatest slideshows.
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Definition of 'specific gravity' specific gravity in American English. the ratio of the weight or mass of a given volume of a substance to that of an equal volume of another substance (water for liquids and solids, air or hydrogen for gases) used as a standard. Example sentences containing 'specific gravity'.
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API Gravity One of the most important standards that the API has set is the method used for measuring the density of petroleum. This standard is called the API gravity. Specific gravity is a ratio of the density of one substance to the density of a reference substance, usually water.
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Urine specific gravity Specific gravity, in the context of clinical pathology, is a urinalysis parameter commonly used in the evaluation of kidney function and can aid in the diagnosis of various renal diseases. For background on kidney function, see Renal function.
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What is the difference between density and specific gravity? (FAQ - Mass & Density) Density is defined as mass per unit volume; it has the SI unit kg·m -3 and is an absolute quantity. Specific gravity is the ratio of a material's density with that of water at 4 °C (where it is most dense and is taken to have the value (*) 999.974 kg·m -3) and is therefore a relative quantity with no units.
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- Specific gravity refers to the ratio of the weight of an object in air divided by its loss of weight in water. Dividing a person's body mass by body volume yields body density (Density = Mass ÷ Volume) and, from this, an estimate of percentage body fat.