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ASTM D6905-03(2008)

Historical Reaffirmation

Standard Practice for Impact Flexibility of Organic Coatings

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1.1 This test method covers a procedure for determining the ability of a coating film and its substrate to resist shattering, cracking, or chipping when the film and substrate are distended beyond their original form by impact.

1.2 This test method does not measure impact resistance but uses rapid impact to improve Test Methods D 522, another test method for flexibility. Since the impact of the coating is almost instantaneous, all of the problems associated with time variables in the mandrel tests are eliminated.

1.3 This test method is similar in content but not technically equivalent to Test Method D 2794.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 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.

Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and their use in service. This impact resistance test method has been found to be useful in predicting the performance of organic coatings for their ability to resist cracking caused by impacts.

SDO ASTM: ASTM International
Document Number D6905
Publication Date July 1, 2008
Language en - English
Page Count 3
Revision Level 03(2008)
Supercedes
Committee D01.23
Publish Date Document Id Type View
Dec. 1, 2020 D6905-20 Revision
May 10, 2003 D6905-03 Revision
Nov. 1, 2012 D6905-03R12 Reaffirmation
July 1, 2008 D6905-03R08 Reaffirmation