specific gravity


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Related to specific gravity: Specific weight

gravity

 [grav´ĭ-te]
1. the phenomenon by which two bodies having mass are attracted to each other.
2. the gravitational attraction near a large body having mass, particularly near or on the surface of a planet or star.
specific gravity see specific gravity.
standard gravity (€g) the acceleration due to gravity at mean sea level, 9.80616 meters per second squared.

specific

 [spĕ-sif´ik]
1. pertaining to a species.
2. produced by a single kind of microorganism.
3. restricted to a particular structure or function, such as in application or effect.
4. a remedy specially indicated for a particular disease.
5. in immunology, pertaining to the special affinity of antigen for the corresponding antibody.
specific gravity the weight of a substance compared with the weight of an equal amount of some other substance taken as a standard. For liquids the usual standard is water. The specific gravity of water is 1; if a sample of urine shows a specific gravity of 1.025, this means that the urine is 1.025 times heavier than water. (The normal specific gravity of urine is 1.003–1.030.) Specific gravity is measured by means of a hydrometer.

spe·cif·ic grav·i·ty (sp. gr.),

the weight of any body compared with that of another body of equal volume regarded as the unit; usually the weight of a liquid compared with that of distilled water.

specific gravity (sp. gr.)

the ratio of the density of a substance to the density of another substance accepted as a standard. The usual standard for liquids and solids is water. Thus a liquid or solid with a specific gravity of 4 is four times as dense as water at the same temperature. Hydrogen is the usual standard for gases. See also density, mass.

specific gravity

Lab medicine A measure of the solutes in a fluid; SG is detected in the urine, based on the response of a polymeric acid to surrounding ions. See Dipstick. Cf Nitrites Nephrology The SG reflects the kidney's ability to concentrate urine: if a random urine specimen has an SG > 1. 023, the kidney's ability to concentrate is assumed to be normal ; SG ↑ in SIADH, uncontrolled DM, proteinuria, eclampsia and obstructive uropathy and ↓ in renal tubular damage, chronic renal insufficiency, diabetes insipidus, malignant HTN Occupational safety A physical parameter of a liquid that indicates how heavy it is in relationship to air–≤ 1.0 = lighter than water; ≥ 1.0 = heavier than water, a datum of interest to OSHA, which requires listing of SGs in its Materials Safety Data Sheets

spe·cif·ic grav·i·ty

(spĕ-sif'ik grav'i-tē)
The weight of any body compared with that of another body of equal volume regarded as the unit; usually the weight of a liquid compared with that of distilled water.

specific gravity

the relative density of one body or object compared to another. If compared to water, an object will float if its specific gravity is less than 1.0 (assuming water has a density of 1.0 kg.m-3).

specific gravity

weight (in g) of 1ml of a substance compared with weight (in g) of 1ml of a reference substance

specific gravity (SG),

n a measurement calculated by dividing the mass of the desired volume of a substance by the mass of an equivalent volume of water. Both measurements must be taken under identical pressure and temperature conditions. Used to determine the presence of impurities within an essential oil. Also used in diagnostic analysis of fluids such as urine.

spe·cif·ic grav·i·ty

(spĕ-sif'ik grav'i-tē)
The weight of any body compared with that of another body of equal volume regarded as the unit; usually the weight of a liquid compared with that of distilled water.

specific gravity,

References in periodicals archive ?
The equation used to obtain the urine specific gravity of Hispaniolan Amazon parrots, [USG.
If an object has a density greater than water then the specific gravity can be measured from buoyancy measurements from:
The majority of discrete creatinine and specific gravity values and all discrete pH values were within established limits with no obvious trends.
After the worldwide summary in Chapter 2 of both imports and exports of polyethylene in primary forms with a specific gravity of less than 0.
In the irrigated plot, clones S13C20 and S7C15 had a significantly higher average specific gravity value than 49-177, and the remaining clones were nonsignificant in the middle.
AFS 4410-00-S, Specific Gravity Gravimetric Method (density or weight per gallon)
5 Total pphr 181 161 181 161 Press cure 90' @ 154[degrees]C Durometer A hardness 85 84 86 85 Specific gravity 1.
Since specific gravity or refractive index as measured by a refractometer is a measure of dissolved substances in solution, the presence of glucose, protein, or radiopaque dyes will act to raise the specific gravity when measured with the refractometer as compared with reagent strips.
The crude that is ideal for most refiners is a crude that is light (has a specific gravity of about 40 degrees) and has less than .
To combat these difficulties, much of the metalcasting industry is moving toward the use of specific gravity measurements rather than the subjective method of examining cut and polished surfaces.
These new extrusion and injection grades also offer tensile set of less than 8% and specific gravity below 1.