ASTM-E2428 2008

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E2428-08 Standard Practice for Calibration of Torque-Measuring Instruments for Verifying the Torque Indication of Torque Testing Machines

Published By	Publication Date	Number of Pages
ASTM	2008	10

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Description

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

Note 1Verification 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Significance and Use Reference Standards Requirements for Torque Standards Calibration
4	Calculation and Analysis of Data
5	FIG. 1 TABLE 1
6	Influence of Temperature on Torque-Measuring Instruments Time Interval Between Calibration and Stability Criteria Substitution of Electronic Torque Indicating Devices Used with Elastic Members
7	Report Keywords A1. PROCEDURE FOR DETERMINING DEGREE OF BEST FITTING POLYNOMIAL A1.1 A1.2 A1.3 A1.4 A1.5 TABLE A1.1
8	A1.6 X1. UNCERTAINTY ANALYSIS FOR AN ELECTRONIC TORQUE INDICATING INSTRUMENT FOR CLASS A LOAD RANGE USING A TRANSDUCER SIMULATOR AND THE METHOD OF MEASUREMENT UNCERTAINTY DETERMINATION IN ACCORDANCE WITH THE PROCEDURES OF ASTM E2428 X1.1 X1.2 X1.3 X1.4 X1.5 X1.6
9	X2. UNCERTAINTY ANALYSIS FOR AN ELECTRONIC TORQUE INDICATING INSTRUMENT FOR CLASS A LOAD RANGE USING A MEASUREMENT UNCERTAINTY DETERMINATION IN ACCORDANCE WITH THE METHOD OF NIST TECH NOTE 1297 X2.1 X2.2 X2.3 X2.4 X2.5 X2.6 X3. UNCERTAINTY ANALYSIS FOR AN ELECTRONIC TORQUE INDICATING INSTRUMENT FOR CLASS AA LOAD RANGE USING A MEASUREMENT UNCERTAINTY DETERMINATION IN ACCORDANCE WITH NIST TECH NOTE 1297 X3.1 X3.2 X3.3

Additional information

Standard Title	E2428-08 Standard Practice for Calibration of Torque-Measuring Instruments for Verifying the Torque Indication of Torque Testing Machines
Published Code	ASTM
Publication Date	2008
Pages Count	10

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ASTM-E2428 2008

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