Rice Lake Weighing Systems
Calibration Weight Counterpoise & Hanger, ASTM Class 7
Counterpoise and Hanger Calibration Weight, ASTM Class 7
Our cast iron weights undergo a special phosphatizing process in which the metal is thoroughly cleaned and mildly etched to allow exceptional finish adhesion. The weights are then coated with a layer of chip-resistant paint which conforms to NIST Handbook 105-1 standards. This two-step process ensures a long-lasting finish that greatly reduces the possibility of corrosion.
Classes Available:
• ASTM Class 7
• Counterpoise weights for ratio weighing
• Nominal value marked on weight
• Weight capacities of 10 kg/20 lb and up meet NIST Handbook 105-1 and Handbook 44 specifications
• Metric weights designated by gold paint
• Avoirdupois weights (pound) designated by silver paint
• Serial numbers may be stamped on weights (optional)
• Field standards for testing industrial devices Class III, Class IIlL or IIII
• Testing for non-marked scales without Class designation
• Verifying scales are within specified accuracy and tolerances
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