VEE GEE Scientific Precision Specific Gravity Scale measures the ration of the mass of a solid or liquid to the mass of an equal volume of distilled water. The standard temperature of calibration in the U.S. is 60°F/60°F. All VEE GEE Specific Gravity Hydrometers listed are calibrated at 60°F/60°F.
The thermometer scale for VEE GEE Hydrometers (w/ Thermometers) is located in the body. General Specifications for VEE GEE ASTM Hydrometers: Manufactured in strict accordance to specifications for ASTM (American Society for Testing and Materials) for accuracy and design. All instruments are suitable for certification for use as a primary reference standard with NIST traceability.
Specific Gravity without Scale
Specific Gravity w/ Thermometer Scale 20 to +150°F