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ASTM E471-96

Historical Revision

Standard Test Method for Obtaining Char Density Profile of Ablative Materials by Machining and Weighing

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1.1 This test method covers the determination of the char density profile of a charred ablator that can be used with the following limitations:

1.1.1 The local surface imperfections must be removed, and the char must be able to be machined off in a plane parallel to the char-virgin material interface before the density profiles can be determined.

1.1.2 The char must be strong enough to withstand the machining and handling techniques employed.

1.1.3 The material should have orderly density variations. The total thickness of the char and degradation zone must be larger than the machining thicknesses required.

1.2 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.


SDO ASTM: ASTM International
Document Number E471
Publication Date Oct. 10, 1996
Language en - English
Page Count 3
Revision Level 96
Supercedes
Committee E21.08
Publish Date Document Id Type View
Aug. 1, 2022 E0471-22 Revision
Oct. 10, 1996 E0471-96R02 Revision
Oct. 10, 1996 E0471-96 Revision
April 1, 2016 E0471-96R16 Reaffirmation
Jan. 1, 2011 E0471-96R11 Reaffirmation