Hydrometer ASTM90H-FC, 1.050/1.100 Glass Formerly
HB Instruments Hydrometer, Specific Gravity, 1.05 to 1.1 Range, 0.0005 Division, 330mm L, ASTM No. 89H, 60°F Standardizing Temperature, Individually Serialized, Feature Metal Ballast, Certified at 1.055, 1.075, 1.095, For Petroleum Products with Surface Tensions Less Than 33 Dynes, Includes 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 - BEL