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

Weight Set ASTM 20g-5mg CL4 Accrd TR

Calibration Certificate ISO/IEC 17025 Accredited Certificate
ASTM Class 4
Weight Set Range 20 g - 5 mg
Item Number: 30391231
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 20 g - 5 mg
Set Capacity 40 g
Set Total Pieces 15
Protective Case Included
Construction 1 g and above are two-piece;  500 mg and below are one-piece
Density at 20°C Below 1 g are 7.95 g/cm3;  1 g and above are 8.03 g/cm3
Dimensions in Case 3.5 in x 7 in x 8 in (8.89 cm x 17.78 cm x 20.32 cm) (LxHxW)
Set Contents 10 g;  100 mg;  20 g;  10 mg;  (2) 2 g;  (2) 200 mg;  (2) 20 mg;  1 g;  5 g;  5 mg;  50 mg;  500 mg
Weight Material Below 1 g are 304 Stainless Steel;  ≥1 g are Troemner Alloy 8
Wgt Origin (USA) USA