specific gravity

https://doi.org/10.1351/goldbook.S05799
See:
relative density
Sources:
PAC, 1979, 51, 2451. (Quantities and Units in Clinical Chemistry) on page 2472 [Terms] [Paper]
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2215 [Terms] [Paper]