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.
6 Options Available Below
Product Details & Documents
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 hydrometerSupplier Number: 6752HTS
- 76546-596API thermo hydrometerSupplier Number: 6753HTS
- 76546-598API thermo hydrometerSupplier Number: 6754HTS
- 76546-600API thermo hydrometerSupplier Number: 6755HTS
- 76546-602API thermo hydrometerSupplier Number: 6756HTS
- 76546-604API thermo hydrometerSupplier Number: 6757HTS