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

Weight Set ASTM 20g-1mg CL1 Non-Accrd TR

Calibration Certificate Traceable Certificate
ASTM Class 1
Weight Set Range 20 g - 1 mg
Item Number: 30391540
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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
500 mg and below - one piece, 1 g and above - two 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 Traceable Certificate
ASTM Class 1
Weight Set Range 20 g - 1 mg
Set Capacity 40 g
Set Total Pieces 18
Protective Case Included
Construction One-piece
Density at 20°C Below 5 mg are 2.70 g/cm3;500 mg to 5 mg 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 (2) 2 g;(2) 20 mg;500 mg;10 g;100 mg;20 g;10 mg;(2) 200 mg;1 g;5 g;5 mg;(2) 2 mg;50 mg;1 mg
Weight Material 500 mg to 5 mg are 304 Stainless Steel;≥1 g are Troemner Alloy 8;Below 5 mg are Aluminum
Wgt Origin (USA) USA