ASTM-E74 2004

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E74-04 Standard Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines

Published By	Publication Date	Number of Pages
ASTM	2004	12

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Description

1.1 The purpose of this practice is to specify procedures for the calibration of force-measuring instruments. Procedures are included for the following types of instruments:

1.1.1 Elastic force-measuring instruments, and

1.1.2 Force-multiplying systems, such as balances and small platform scales.

Note 1Verification by deadweight loading is also an acceptable method of verifying the force indication of a testing machine. Tolerances for weights for this purpose are given in Practices E 4; 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 SI units are to be regarded as the standard. Other metric and inch-pound values are regarded as equivalent when required.

1.3 This practice is intended for the calibration of static force measuring instruments. It is not applicable for dynamic or high speed force calibrations, nor can the results of calibrations performed in accordance with this practice be assumed valid for dynamic or high speed force 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 Force Standards
3	Calibration
5	Calculation and Analysis of Data
6	FIG. 1 TABLE 1
7	Temperature Corrections for Force-Measuring Instruments During Use Balances and Small Platform Scales
8	Time Interval Between Calibration Substitution of Electronic Force Indicating Devices Used with Elastic Members TABLE 2
9	Report Keywords A1. PROCEDURE FOR DETERMINING DEGREE OF BEST FITTING POLYNOMIAL A1.1 A1.2 A1.3
10	A1.4 A1.5 A1.6 X1. Uncertainty Analysis for an Electronic Force 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 E 74 X1.1 X1.2 X1.3 X1.4 X1.5 TABLE A1.1
11	X1.6 X2. Uncertainty Analysis for an Electronic Force 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
12	X3. Uncertainty Analysis for an Electronic Force 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	E74-04 Standard Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines
Published Code	ASTM
Publication Date	2004
Pages Count	12

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ASTM-E74 2004

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