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Standard Practice for Optical Distortion and Deviation of Transparent Parts Using the Double-Exposure Method
STANDARD published on 15.5.2009
Designation standards: ASTM F733-09
Note: WITHDRAWN
Publication date standards: 15.5.2009
SKU: NS-56282
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
distortion, grid-line slope, optical deviation, optical distortion, transparency quality, Aerospace transparent enclosures, Aircraft materials/applications, Deviation, Distortion, Double-exposure method, Grid-line slope, Optical distortion/deviation, Optical materials/properties/tests--aerospace materials, Photography/photographic processing, Transparent materials, Windshields, ICS Number Code 49.035 (Components for aerospace construction)
Significance and Use | ||||
Transparent parts, such as aircraft windshields and windows, can be inspected using this practice, and the amount of optical distortion or deviation can be measured. The measurement can be checked for acceptability against the specification for the part. The photograph (digital file, print or negative) can be maintained as a permanent record of the optical quality of the part. |
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1. Scope | ||||
1.1 This photographic practice determines the optical distortion and deviation of a line of sight through a simple transparent part, such as a commercial aircraft windshield or a cabin window. This practice applies to essentially flat or nearly flat parts and may not be suitable for highly curved materials. 1.2 Test Method F 801 addresses optical deviation (angluar deviation) and Test Method F 2156 addresses optical distortion using grid line slope. These test methods should be used instead of Practice F 733 whenever practical. 1.3 This standard does not purport to address the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||
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