For density, relative density (specific gravity) or API gravity determination of crude petroleum, liquid petroleum products and mixtures of petroleum and non-petroleum products.
"Holds 12 hydrometer cylinders Can be used for Reid Vapor Pressure immersion type cylinders Conforms to ASTM D323, D1298, D6074, D6158 and related specifications"
Temperature Control Stability: ±0.2°F (±0.17°C) Heater Range: 0-2500W Bath Medium: 19 gal (71.9L) water