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Normas ASTM – AENOR
ASTM F1316-90(2008)

ASTM F1316-90(2008)

Standard Test Method for Measuring the Transmissivity of Transparent Parts

Fecha:
2013-12-23 /Historical
Superseeded by:
Significance and Use:

SignificanceThis test method provides a means to measure the transmissivity of parts in the field (already installed on aircraft) and of large, thick or curved parts that may not lend themselves to measurement using Test Method D 1003.

UseThis test method may be used on any transparent part. It is primarily intended for use on large, curved, or thick parts that may already be installed (for example, windscreens on aircraft).

Scope:

1.1 This test method describes an apparatus and procedure that is suitable for measuring the transmissivity of large, thick, or curved transparent parts including parts already installed. This test method is limited to transparencies that are relatively neutral with respect to wavelength (not highly colored).

1.2 Since the transmissivity (transmission coefficient) is a ratio of two luminance values, it has no units. The units of luminance recorded in the intermediate steps of this test method are not critical; any recognized units of luminance (for example, foot-lamberts or candelas per square metre) may be used, as long as use is consistent.

1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.

Keywords:
Aerospace transparent enclosures; Aircraft materials/applications; Field testing--aerospace materials/applications; Luminance; Transmissivity and reflectivity; Windshields
44,42
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