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 ?
Tuber dry matter was directly related to the specific gravity and starch contents.
The heavier weight of these materials means a vacuum loader will not be able to handle those with a specific gravity above 5 or 6.
Specific gravity of each sample was visually determined by a single observer (V.
The calculated corresponding estimated total protein content (g/dL) from the lowest measured dextran solution specific gravity in which gel flotation was observed is given in the Table.
The refractory component of a coating is usually heavier than water, so coatings have a lower specific gravity when they are diluted with water from a concentrated to application level.
The specific gravity of a tektite is defined as: density of tektite % density of water.
The purposes of this study were (i) to estimate broad-sense heritability for resistance to IHN, yield, and specific gravity in 19 clones (4 cultivars and 15 advanced selections from the USDA-ARS potato breeding program in Beltsville, MD); (ii) to determine the importance of clone x environment interactions on IHN, yield, and specific gravity; (ii) to determine the stability of resistance to IHN, yield, and specific gravity in these clones; and (iv) to determine the relationship among IHN, yield, and specific gravity.
The pH was measured with pH indicator paper (Whatman International), and the specific gravity was measured using an Atago urine specific gravity refractometer.
In one institution, standard practice was to measure specific gravity using the refractometer.
The particles are caught in the descending vortex, resulting in progressively increasing specific gravity of the medium as the spigot is approached.
On the demand side, exporters and strategic planners focusing on polyethylene in primary forms with a specific gravity of less than 0.