Specific Gravity Hydrometers

Specific Gravity is the ratio of the mass of a solid or liquid to be mass of an equal volume of distilled water. The standard temperature of calibration in the U.S. is 60°F / 60°F (20°C / 20°C). All our Specific Gravity Hydrometers listed are calibrated at 60°F / 60°F (20°C / 20°C). Our ASTM Specification hydrometers are manufactured in strict accordance to specifications of ASTM (American Society for Testing and Materials) for accuracy and design.

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