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ASTM Reference Calibration Weight Sets
Reference Calibration Weights and Mass Standards Adjusted to the Most Precise Tolerances

Weight Set ASTM 20g-1mg UC No Cert TR

Calibration Certificate No Certificate
ASTM Class Troemner UltraClass
Weight Set Range 20 g - 1 mg
Item Number: 30390063
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Overview
ASTM Reference Calibration Weight Sets
Applications
Use as a primary reference for calibrating other mass standards and use for traceability between national mass standards and ASTM Class 1 weights and lower. This class is appropriate for calibrating high-precision balances with readability as low as 0.01 mg.
Construction
1 g and above - two-piece 500 mg and below - one-piece
Design Features
Weights 50 kg through 1 g are cylindrical with handling knob. Weights 500 mg and below are flat with one end turned up for easy handling.
Specifications
Calibration Certificate No Certificate
ASTM Class Troemner UltraClass
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;Weights 1 g and above are Troemner Alloy 8, weights 5 mg through 500 mg are 304 Stainless Steel, weights below 5 mg are 3003-H14 Aluminum
Wgt Origin (USA) USA