API Thermo-Hydrometers
About this item
Our 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.
- Safety blue thermometer liquid fill
The thermometer scale (where applicable) for these thermo-hydrometers is located in the body. All instruments are suitable for certification for use as a primary reference with NIST traceability.
The API scale is based on the following formula: °API at 60 °F = 141.5/(specific gravity at 60 °F) - 131.5.
Product Details
Our 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.
- Safety blue thermometer liquid fill
The thermometer scale (where applicable) for these thermo-hydrometers is located in the body. All instruments are suitable for certification for use as a primary reference with NIST traceability.
The API scale is based on the following formula: °API at 60 °F = 141.5/(specific gravity at 60 °F) - 131.5.
Product Family Options
Product Information
- Temperature rangeRangeLengthASTM no.AvailabilityPrice
- 76546-594API thermo hydrometer0...150 °F9...21° (API)380 mm (15")52HSupplier Number: 6752HTS
- 76546-596API thermo hydrometer0...150 °F19...31° (API)380 mm (15")53HSupplier Number: 6753HTS
- 76546-598API thermo hydrometer0...150 °F29...41° (API)380 mm (15")54HSupplier Number: 6754HTS
- 76546-600API thermo hydrometer0...150 °F39...51° (API)380 mm (15")55HSupplier Number: 6755HTS
- 76546-602API thermo hydrometer0...150 °F49...61° (API)380 mm (15")56HSupplier Number: 6756HTS
- 76546-604API thermo hydrometer0...150 °F59...71° (API)380 mm (15")57HSupplier Number: 6757HTS