ASTM International - ASTM F801-21

Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts

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Organization: ASTM International
Publication Date: 1 May 2021
Status: active
Page Count: 9
ICS Code (Components for aerospace construction): 49.035
significance And Use:

5.1 One of the measures of optical quality of a transparent part is its angular deviation. It is possible that excessive angular deviation, or variations in angular deviation throughout the part,... View More

scope:

1.1 This test method covers measuring the angular deviation of a light ray imposed by transparent parts such as aircraft windscreens and canopies. The results are uncontaminated by the effects of lateral displacement, and it is possible to perform the procedure in a relatively short optical path length. This is not intended as a referee standard. It is one convenient method for measuring angular deviations through transparent windows.

1.2 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.

1.3 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.

Document History

ASTM F801-21
May 1, 2021
Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
5.1 One of the measures of optical quality of a transparent part is its angular deviation. It is possible that excessive angular deviation, or variations in angular deviation throughout the part,...
April 1, 2016
Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
5.1 One of the measures of optical quality of a transparent part is its angular deviation. It is possible that excessive angular deviation, or variations in angular deviation throughout the part,...
April 1, 2008
Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
One of the measures of optical quality of a transparent part is its angular deviation. Excessive angular deviation, or variations in angular deviation throughout the part, result in visible...
November 10, 1996
Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
1.1 This test method covers measuring the angular deviation of a light ray imposed by transparent parts such as aircraft windscreens and canopies. The results are uncontaminated by the effects of...
November 10, 1996
Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
One of the measures of optical quality of a transparent part is its angular deviation. Excessive angular deviation, or variations in angular deviation throughout the part, result in visible...
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