ASTM Calibration Weight Sets
Calibration Weight Sets Adjusted to Meet or Exceed ASTM Class 1-4 Tolerances

Weight Set ASTM 25kg-1mg CL4 Accrd TR

Calibration Certificate ISO/IEC 17025 Accredited Certificate
ASTM Class 4
Weight Set Range 25 kg - 1 mg
Item Number: 30391257
Overview
ASTM Calibration Weight Sets
Applications
Use Class 1 as a primary reference to calibrate other mass standards and use for traceability between national mass standards and ASTM Class 2 weights and lower. Class 1 is appropriate for calibrating high-precision balances with readability as low as 0.1mg.
Construction
1 g and above - two-piece 500 mg and below - one-piece
Design Features
Knob style weights 50kg–1g are cylindrical with knob. Cal-Pak 5kg weight is a grip handle weight. Cylindrical style weights 1kg–5k have groove. Cylindrical grip style weights 4kg–30kg have recessed grip. Cylindrical weights 10g–600g are straight cylinder.
Specifications
Calibration Certificate ISO/IEC 17025 Accredited Certificate
ASTM Class 4
Weight Set Range 25 kg - 1 mg
Set Capacity 85 kg
Set Total Pieces 31
Protective Case Included
Construction 1 g and above are two-piece;  500 mg and below are one-piece
Density at 20°C Below 5 mg are 2.70 g/cm3;  500 mg to 5 mg are 7.95 g/cm3;  2 kg and above are 7.95 g/cm3;  1 kg to 1 g are 8.03 g/cm3
Dimensions in Case 11.7 in x 19.7 in x 24.6 in (29.718 cm x 50.038 cm x 62.484 cm) (LxHxW)
Set Contents (2) 2 g;  (2) 200 g;  (2) 20 mg;  20 kg;  500 mg;  10 g;  (2) 20 g;  100 g;  100 mg;  10 mg;  (2) 200 mg;  10 kg;  1 g;  50 g;  (2) 2 kg;  5 g;  1 kg;  5 mg;  500 g;  (2) 2 mg;  50 mg;  1 mg;  5 kg
Weight Material 500 mg to 5 mg are 304 Stainless Steel;  ≥2 kg are 316 Stainless Steel;  Below 5 mg are Aluminum;  1 kg to 1 g are Troemner Alloy 8
Wgt Origin (USA) USA