Hydrometer, ASTM 8H-FC, 69/81, API, Glas Formerly

HB Instruments Hydrometer, API, 69 to 81° Range, 0.1 Division, 330mm L, ASTM No. 8H, 0.1° Accuracy, 60°F Standardizing Temperature, Individually Serialized, Feature Metal Ballast, Certified at 70, 75, 80°, Measure density according to API degree scale for petroleum applications, Laminated Calibration Report stating corrections to one-tenth of the smallest division, Tested and Calibrated in Exclusive Triple Accredited/Registered ISO/IEC 17025:2005, A2LA Accredited Laboratory Against Equipment whose Calibration is Traceable to NIST and DAkkS - BEL