KIMBLE Plain Form API ASTM Hydrometer, API 69-81, ASTM 8H

Description

Calibrated to ASTM specification to ensure accuracy | Manufactured from soda-lime glass | With API scale graduated in degrees | The certificate of traceability indicates that the hydrometers are manufactured using devices calibrated using NIST traceable standards. | A serial number is printed on the scale, a certificate of traceability is included | The ballast is made from steel pellets and a binder, and it is free of heavier metals.