Description

H-B DURAC Individually Calibrated 19/31 Degree API ASTM 3H Hydrometer. Choose from a wide range of individually calibrated plain form models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from 1° to 91°API in accordance with the American Petroleum Institute (API) and the American Society of Testing Materials (ASTM) E100 standards.

Conform to the accuracy requirements of ASTM hydrometers.

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″) long

Lead free ballast and glass

Individually serialized

Temperature standardization: 60°F/60°F

Calibrated and hand inspected by our U.S. quality team in our exclusive triple accredited/registered ISO/IEC 17025:2017 and A2LA Accredited Calibration Laboratory; internationally recognized and accepted by the signatory economies of the ILAC/MRA and located in our ISO 14001:2015 Environmental Management System registered facility

Packaged in a recyclable, deluxe storage box

Made in the U.S.A
Note: ASTM calibrated hydrometers should be stored in a clean, dry, safe place. They should not be subjected to extreme temperatures.