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ASTM E2428-08

Historical Revision

Standard Practice for Calibration and Verification of Torque Transducers

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1.1 This practice is to specify procedure for the calibration of elastic torque-measuring instruments.

Note 1—Verification 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 Practice WK6364; methods for calibration of the weights are given in NIST Technical Note 577, Methods of Calibrating Weights for Piston Gages.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 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 or measurements.

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 determine the applicability of regulatory limitations prior to use.

Testing machines that apply and indicate torque are in general use in many industries. Practice WK6364 has been written to provide a practice for the torque verification of these machines. A necessary element in Practice WK6364 is the use of devices whose torque characteristics are known to be traceable to national standards. Practice E 2428 describes how these devices are to be calibrated. The procedures are useful to users of torque testing machines, manufacturers and providers of torque measuring instruments, calibration laboratories that provide calibration services and documents, and service organizations using devices to verify torque testing machines.

SDO ASTM: ASTM International
Document Number E2428
Publication Date Feb. 15, 2008
Language en - English
Page Count 10
Revision Level 08
Supercedes
Committee E28.01
Publish Date Document Id Type View
Nov. 1, 2022 E2428-22 Revision
May 15, 2015 E2428-15A Revision
Feb. 1, 2015 E2428-15 Revision
Oct. 15, 2014 E2428-14 Revision
Feb. 15, 2008 E2428-08 Revision