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ASTM F520-21

Current Revision

Standard Test Method for Environmental Resistance of Aerospace Transparencies to Artificially Induced Exposures

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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.


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.

SDO ASTM: ASTM International
Document Number F520
Publication Date May 1, 2021
Language en - English
Page Count 4
Revision Level 21
Supercedes
Committee F07.08
Publish Date Document Id Type View
May 1, 2021 F0520-21 Revision
April 1, 2016 F0520-16 Revision
May 1, 2010 F0520-10 Revision
Jan. 1, 1997 F0520-97 Revision
Oct. 1, 2004 F0520-97R04 Reaffirmation