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ASTM Individual Reference Calibration Weights
Reference Calibration Weights and Mass Standards Adjusted to Troemner UltraClass Tolerances

Weight 1P ASTM 300mg UC Accrd TR

Calibration Certificate ISO/IEC 17025 Accredited Certificate
ASTM Class Troemner UltraClass
Weight Value 300 mg
Item Number: 30390247
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Overview
ASTM Individual Reference Calibration Weights
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
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 ISO/IEC 17025 Accredited Certificate
ASTM Class Troemner UltraClass
Weight Value 300 mg
Design Flat
Protective Case Included
Uncertainty 0.001 mg
Construction One-piece
Density at 20°C 7.95 g/cm3
Dimensions 0.33 in x 0.12 in x 0.3 in (0.83 cm x 0.305 cm x 0.76 cm) (LxHxW)
Dimensions in Case 2.5 in x 2 in (6.35 cm x 5.08 cm) (HxØ)
Weight Material 304 Stainless Steel
Weight Tolerance 0.005 mg
Wgt Origin (USA) USA