1. Scope
1.1 This practice specifies procedures for the calibration of elastic torque-measuring instruments.
NOTE 1-ùVerification by deadweight and a lever arm is an acceptable method of verifying the torque indication of a torque-testing machine. Tolerances for weights used are tabulated in Practices WK6364; methods for calibration of the weights are given in NIST Technical Note 577, Methods of Calibrating Weights for Piston Gages.
1.2 This practice is intended for the calibration of static or quasi-static torque-measuring instruments. The practice is not applicable for high-speed torque calibrations. Calibrations performed in accordance with this practice are not valid for high-speed torque measurements.
1.3 The values stated in SI and inch-pound units are to be regarded equally as the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
Current national standards do not exist for calibrating torque-measuring instruments.
Keywords
torque standard; torque cell; torque-testing machine
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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