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ASTM C769-98(2005)

Historical Reaffirmation

Standard Test Method for Sonic Velocity in Manufactured Carbon and Graphite Materials for Use in Obtaining an Approximate Value of Young's Modulus

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1.1 This test method covers a procedure for measuring the sonic velocity in manufactured carbon and graphite materials having a grain size less than 0.80 mm (1/32 in.). The sonic velocity can be used to obtain an approximate value for Young's modulus.

1.2 The values stated in SI units are to be regarded as the standard.

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.


Sonic velocity measurements are useful for comparing materials.

A value for Young’modulus can be obtained for many applications, which will generally be within 10 % of the value obtained by other methods, such as in Test Method C 747.

SDO ASTM: ASTM International
Document Number C769
Publication Date May 1, 2005
Language en - English
Page Count 3
Revision Level 98(2005)
Supercedes
Committee D02.F0
Publish Date Document Id Type View
Dec. 1, 2015 C0769-15 Revision
June 1, 2009 C0769-09 Revision
March 10, 1998 C0769-98 Revision
Nov. 1, 2020 C0769-15R20E01 Reaffirmation
May 1, 2005 C0769-98R05 Reaffirmation