Designed specifically for calibrating balances, calibrating weights, laboratory use, and as mass standards, E1 class high precision calibration weights provide ultimate high accuracy and easy handling, E1 weight to calibrate the balance with accuracy of 0.01mg. Density 7.95 g/cm3 (optional 8.00g/cm3 ) Magnetic susceptibility ≤ 0.01 (or ≤ 0.0006) Highly polished stainless steel Nominal value marked on weights Calibrate the 0.01mg accuracy balance Calibration for balances and weights Weights for a clean room Certificate for ISO9000/14000, IATF16949 Validation system for GLP/GMP Innovation for HACCP plan Density Measurement OIML accuracy class: E1 Material: Non-magnetic 316 stainless steel, density 7.95g/ cm3, magnetic susceptibility ≤ 0.01 Optional material: Non-magnetic 321 stainless steel (ISO X6CrNiTi18 10, DIN X12CrNiTi18 9); density 8.00g/ cm3, Magnetic susceptibility ≤ 0.0006 Calibration weight style: Knob Cylinder Adjusting cavity location: N/A Balun Technology Co., Ltd Add: 1322, F/3, Bldg 1, 33 Zique Rd, Haidian, Beijing100095, China E1 Class Non-Magnetic Stainless Steel Calibration Weight Cleaning cloth and brush Aluminum Protection Case OPTONAL PARTS AND SERVICE ■ ORDERING MODEL NUMBER ■ ■ E1 - Part Number -316 E1 - Part Number -321