ASTM Reference Calibration Weight Sets
Reference Calibration Weight Sets and Mass Standards Adjusted to Troemner UltraClass Tolerances

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

Calibration Certificate Traceable Certificate
ASTM Class UltraClass;Troemner UltraClass
Weight Set Range 20 g - 1 mg
Item Number: 30390100
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 Traceable Certificate
ASTM Class UltraClass;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