Standard Practice for Polarized Light Detection of Flaws in Aerospace Transparency Heating Elements

Available format(s)

Hardcopy , PDF

Superseded date

18-05-2024

Language(s)

English

Published date

06-11-2019

Publisher

American Society for Testing and Materials

Committee	F 07
DocumentType	Standard Practice
Pages	4
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM F 319 : 2019 : R2024
Supersedes	ASTM F 319 : 2009 : R2014

1.1This practice covers a standard procedure for detecting flaws in the conductive coating (heater element) by the observation of polarized light patterns.

1.2This practice applies to coatings on surfaces of monolithic transparencies as well as to coatings imbedded in laminated structures.

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4This 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. For specific precautionary statements, see Section 6.

1.5This 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.

ASTM F 790 : 2023	Standard Guide for Testing Materials for Aerospace Plastic Transparent Enclosures
ASTM F 520 : 2021	Standard Test Method for Environmental Resistance of Aerospace Transparencies to Artificially Induced Exposures