Vee Gee 6757HTS Api Scale Hydrometer with Thermometer, ASTM No. 57H, 59-71 Degree Api Scale, 0.1 Degree Subdivision, 380 mm Length, 0 Degree F-150 Degree F Temperature Range

Description

The API Scale was selected in 1939 by the American Petroleum Institute (API), the U.S. Bureau of Mines, and the National Institute of Standards and Technology (NIST) as the standard hydrometer scale for petroleum products. The thermometer scale for Vee Gee Hydrometers (w/ thermometers) is located in the body. A correction scale for conversion of readings to 60°F is printed opposite the temperature scale. General Specifications for Vee Gee ASTM Hydrometers: Manufactured in strict accordance to specifications of 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. 59-71° API Scale, ASTM No. 57H, 0.1° Subdivision, 0°F-150°F Temperature Range, 380mm Length