E 1 Specification for ASTM Liquid-in-Glass Thermometers
E 12 Terminology Relating to Density and Specific Gravity
of Solids, Liquids, and Gases
E 691 Practice for Conducting an interlaboratory Study to
Determine the Precision of a Test Method
IEEE/ASTM SI-10 Practice for Use of the International
System of Units (SI) (the Modernized Metric System)
3. Terminology
3.1 General—The units, symbols, and abbreviations used in
these test methods are in accordance with IEEE/ASTM SI-10.
3.2 Definitions:
3.2.1 specific gravity (relative density)— the ratio of the
mass of a given volume of the impermeable portion of the
material at 23°C to the mass of an equal volume of gas-free
distilled or de-mineralized water at the same temperature; the
form of expression shall be:
Specific gravity ~relative density! 23/23°C
~or sp gr 23/23°C!
NOTE 2—This definition is essentially equivalent to the definition for
apparent specific gravity and apparent density in Terminology E 12,
because the small percentage difference introduced by not correcting for
the buoyancy of air is insignificant for most purposes.
3.2.2 density—cubic metre of impermeable portion of the
material at 23°C. The form of expression shall be