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ASTM F1165

2015 Edition, November 1, 2015

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Standard Test Method for Measuring Angular Displacement of Multiple Images in Transparent Parts



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Product Details:

  • Revision: 2015 Edition, November 1, 2015
  • Published Date: November 1, 2015
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 4
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This test method covers measuring the angular separation of secondary images from their respective primary images as viewed from the design eye position of an aircraft transparency. Angular separation is measured at 49 points within a 20 by 20° field of view. This procedure is designed for performance on any aircraft transparency in a laboratory or in the field. However, the procedure is limited to a dark environment. Laboratory measurements are done in a darkened room and field measurements are done at night.

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

Exception—The values in parentheses are for information only.

This standard possibly involves hazardous materials, operations, and equipment. This standard does not purport to address all of 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