• density of water
• True specific gravity can be expressed mathematically as: S G true = ρ sample ρ H 2 O {\displaystyle SG_{\text{true}}={\frac {\rho _{\text{sample}}}{\rho _{\rm {H_{2}O}}}}} where ρ sample {\displaystyle \rho _{\text{sample}}\,} is the density of the sample and ρ H 2 O {\displaystyle \rho _{\rm {H_{2}O}}} is the density of water. (wikipedia.org)
• concentration
• Specific gravity is commonly used in industry as a simple means of obtaining information about the concentration of solutions of various materials such as brines, hydrocarbons, sugar solutions (syrups, juices, honeys, brewers wort, must, etc.) and acids. (wikipedia.org)
• therefore
• Therefore, during fully charged steady-state operation and on discharge, measurement of the specific gravity of the electrolyte provides an approximate indication of the state of charge of the cell. (engineersedge.com)
• Therefore the more concentrated electrolyte created during charging sinks to the bottom of the battery jar creating a gradient in specific gravity. (engineersedge.com)
• Testing
• The analysis includes testing for the presence of proteins, glucose, ketones, haemoglobin, bilirubin, urobilinogen, acetone, nitrite and leucocytes as well as testing of pH and specific gravity or to test for infection by different pathogens. (wikipedia.org)
• object
• It can be expressed in terms of the equation SSG = ρ o − ρ f ρ f {\displaystyle {\text{SSG}}={\frac {\rho _{o}-\rho _{f}}{\rho _{f}}}} where SSG {\displaystyle {\text{SSG}}} stands for "submerged specific gravity", ρ o {\displaystyle \rho _{o}} is the density of the object, and ρ f {\displaystyle \rho _{f}} is the density of the fluid. (wikipedia.org)
• allow
• Paper strips are often specific to a single reaction (e.g. pH measurement), while the strips with pads allow several determinations simultaneously. (wikipedia.org)