ASTM-D822 › Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
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1.1 This practice covers the selection of test conditions for accelerated exposure testing of coatings and related products in filtered open-flame carbon-arc devices conducted according to Practices and . This practice also covers the preparation of test specimens, the test conditions suited for coatings, and the evaluation of test results. describes commonly used test conditions.
1.2 This practice does not cover enclosed carbon-arc exposures of paints and related coatings, which is described in Practice . Another procedure for exposing these products is covered by Practice , in which the specimens are subjected to radiation from an unfiltered open-flame carbon arc that produces shorter wavelengths and higher levels of short wavelength radiation than filtered open-flame or enclosed carbon arcs.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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.
carbon arc; degradation; exposure; light exposure; ultraviolet; weathering;; ICS Number Code 87.040 (Paints and varnishes)
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2013 R18 EDITION
Sept. 1, 2018