Table of Contents

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Abstract

Covers five grades of extensometers used in tension and compression testing, grading being in terms of repeatability of gauge length, and readability, repeatability and accuracy of indicated extension. The standard methods of calibration used at room temperature for grading purposes are described, and the requirements for calibrating devices are stated. Instructions for the issue of reports of calibration are included together with recommendations on certain constructional features of extensometers and the use of calibrating equipment. Also included are comprehensive tables of grading requirements for a wide range of values of strain and extension for extensometers of nominal gauge lengths 25, 50, 100 and 200 mm.
RECONFIRMATION NOTICE
Technical Committee MT-009 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 20 March 2017.
The following are represented on Technical Committee MT-009:
Australasian Institute of Surface Finishing
Australian Chamber of Commerce and Industry
Australian Industry Group
Australian Steel Institute
Bureau of Steel Manufacturers of Australia
Galvanizers Association of Australia
Galvanizing Association of New Zealand
New Zealand Metal Roofing Manufacturers

Scope

This standard deals with the calibration at room temperature and grading of extensometers used in tension and compression testing. (See Appendix A regarding the use of extensometers at other than room temperature.) It defines the terms used and describes the standard method of calibration; the requirements for calibrating devices are stated. Extensometers are graded in terms of repeatability of gauge length, and readability, repeatability and accuracy of indicated extension.

Instructions for the issue of reports of calibration are included together with recommendations on certain constructional features of extensometers and the use of calibrating equipment.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 31/03/2017. This standard has been reconfirmed in Australia in 2017 and remains current in New Zealand. Reconfirmation Notice 31/03/2017
Pages
ISBN
Committee	MT-006
Supersedes	DR 73062