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ASTM E83-10

Historical Revision

Standard Practice for Verification and Classification of Extensometer Systems

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1.1 This practice covers procedures for the verification and classification of extensometer systems, but it is not intended to be a complete purchase specification. The practice is applicable only to instruments that indicate or record values that are proportional to changes in length corresponding to either tensile or compressive strain. Extensometer systems are classified on the basis of the magnitude of their errors.

1.2 Because strain is a dimensionless quantity, this document can be used for extensometers based on either SI or US customary units of displacement.

Note 1—Bonded resistance strain gauges directly bonded to a specimen cannot be calibrated or verified with the apparatus described in this practice for the verification of extensometers having definite gauge points. (See procedures as described in Test Methods E251.)

1.3 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.

This practice covers procedures for the verification and classification of extensometer systems, but it is not intended to be a complete purchase specification. The practice is applicable only to instruments that indicate or record values that are proportional to changes in length corresponding to either tensile or compressive strain. Extensometer systems are classified on the basis of the magnitude of their errors. The apparatus for verifying extensometer systems shall provide a means for applying controlled displacements to a simulated specimen and for measuring these displacements accurately. Extensometer systems shall be classified in accordance with the requirements as to maximum error of strain indicated: Class A; Class B-1; Class B-2; Class C; Class D; and Class E. Extensometer systems shall be categorized in three types according to gage length: Type 1; Type 2; and Type 3. A verification procedure for extensometer systems shall be done in accordance with the specified requirements.


SDO ASTM: ASTM International
Document Number E83
Publication Date Jan. 1, 2010
Language en - English
Page Count 15
Revision Level 10
Supercedes
Committee E28.01
Publish Date Document Id Type View
Jan. 1, 2023 E0083-23 Revision
Dec. 15, 2016 E0083-16 Revision
June 1, 2010 E0083-10A Revision
Jan. 1, 2010 E0083-10 Revision
May 1, 2006 E0083-06 Revision
June 10, 2002 E0083-02 Revision
Dec. 10, 2000 E0083-98 Revision
Dec. 10, 2000 E0083-00E01 Revision
Dec. 10, 2000 E0083-00 Revision
Jan. 1, 1998 E0083-98E01 Revision