Hydrometer, ASTM 7H-FC, 59/71, API, Glas Formerly

HB Instruments Hydrometer, API, 59 to 71° Range, 0.1 Division, 330mm L, ASTM No. 7H, 0.1° Accuracy, 60°F Standardizing Temperature, Individually Serialized, Feature Metal Ballast, Certified at 60, 65, 70°, 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