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ASTM D2794-93(2024)
Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)
Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)
D2794-93R24
ASTM|D2794-93R24|en-US
Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)
Standard
D2794 Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)>
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Significance and Use
5.1 Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and their use in service. In its use over many years, this test method for impact resistance has been found to be useful in predicting the performance of organic coatings for their ability to resist cracking caused by impacts.
Scope
1.1 This test method covers a procedure for rapidly deforming by impact a coating film and its substrate and for evaluating the effect of such deformation.
1.2 This test method should be restricted to testing in only one laboratory when numerical values are used because of the poor reproducibility of the method. Interlaboratory agreement is improved when ranking is used in place of numerical values.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.