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ASTM F520-21
Standard Test Method for Environmental Resistance of Aerospace Transparencies to Artificially Induced Exposures
Standard Test Method for Environmental Resistance of Aerospace Transparencies to Artificially Induced Exposures
F0520-21
ASTM|F0520-21|en-US
Standard Test Method for Environmental Resistance of Aerospace Transparencies to Artificially Induced Exposures
Standard
F520 Standard Test Method for Environmental Resistance of Aerospace Transparencies to Artificially Induced Exposures>
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BOS Vol. 15.03 Committee F07
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Significance and Use
4.1 This test method, when applied to aerospace transparencies of either monolithic glass/plastic or laminated combinations, is a measure of the ability of the transparency to withstand the effects of artificially induced environments. The test applies to configurations employing electrically conductive coatings, and also to uncoated materials.
4.2 The resistance of the transparent enclosure to environmental effects may vary appreciably depending on the size, geometry, material of construction, coating integrity, coating density, and other factors.
Scope
1.1 This test method covers determination of the effects of exposure to thermal shock, condensing humidity, and simulated weather on aerospace transparent enclosures.
1.2 This test method is not recommended for quality control, nor is it intended to provide a correlation to actual service life.
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3.1 Exceptions—Certain inch-pound units are furnished in parentheses (not mandatory) and certain temperatures in Fahrenheit associated with other standards are also furnished.
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.