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H-B Instrument™ Durac™ API ASTM Hydrometers with Individual Calibration Report; Traceable to NIST

Measure the relative density of oil and petroleum products in ranges from -1° to 101° API with these hydrometers. H-B Instrument Durac™ API ASTM Hydrometers conform to American Petroleum Institute (API) and the American Society of Testing Materials (ASTM) E100 standards. Traceable to NIST, with Individual Calibration Report.

Manufacturer:  H-B Instrument™ B618980100

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Catalog No. 13-203-128

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  • Calibrated traceable to NIST standards at three points; supplied with a detailed calibration report stating corrections to one-tenth of the smallest division
  • 330mm (13 in.) long
  • Lead free ballast and glass
  • Individually serialized
  • Temperature standardization of 60°F (15°C)
  • Hand inspected by U.S. quality team
  • Thermometer temperature scale: 0 to 50°C.
  • Packaged with a multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy indicating accuracy traceable to NIST
  • Conform to the accuracy requirements for ASTM thermo-hydrometers


Lead free
Multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy indicating accuracy traceable to NIST
30°, 35°, 40°
API ASTM Hydrometer with Individual Calibration Report
Traceable to NIST
Measuring the relative density (specific gravity) of oil and petroleum related products
29 to 41°
Safety and Handling

Safety and Handling

Recommended Storage : Hydrometers should be stored in a clean, dry, safe place, and should not be subjected to extreme temperatures

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