API ASTM Hydrometers with Thermometer from VEE GEE Scientific

API ASTM Hydrometers with Thermometer

VEE GEE API Scale Hydrometers measure the scale which was selected in 1921 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 API Scale is based on the following formula: °API @ 60°F = 141.5/(Specific Gravity @ 60°F) - 131.5

The Thermometer Scale (where applicable) for VEE GEE Hydrometers with Thermometers is located in the body. All instruments are suitable for certification for use as a primary reference with NIST traceability.

                                                                                                                                      Key Features

  • Scales are ideal for petroleum products
  • Thermometer liquid fills are in safety blue (°F)
  • Wide range of API scales to choose from

                                                                                                                     Specifications Chart

Item No. API Range ASTM No. Thermometer Range
6751HTS -1 to 11° 51H 0 to 150°F
6752HTS 9 to 21° 52H 0 to 150°F
6753HTS 19 to 31° 53H 0 to 150°F
6754HTS 29 to 41° 54H 0 to 150°F
6755HTS 39 to 51° 55H 0 to 150°F
6756HTS 49 to 61° 56H 0 to 150°F
6757HTS 59 to 71° 57H 0 to 150°F
6758HTS 69 to 81° 58H 0 to 150°F


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Customer Reviews

Based on 1 review
Patrick Caputo
Good website and service.

Easy to use website. Delicate item properly packaged.