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ASTM D1494-97(2001)e1

Historical Revision

Standard Test Method for Diffuse Light Transmission Factor of Reinforced Plastics Panels

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1.1 This test method covers the determination of the diffuse light transmission factor of translucent reinforced plastics building panels.

1.2 The values stated in SI units are to be regarded as the standard. The values given in the parentheses are for information only.

1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in Tables and Figures) shall not be considered as requirements of this standard.

1.4 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.

Note 1—There are no ISO standards covering the subject matter of this specification.


The purpose of this test method is to obtain the diffuse light transmittance factor of both flat and corrugated translucent building panels by the use of simple apparatus and by employing as a light source a combination of fluorescent tubes whose energy distribution closely approximates CIE Source C.

SDO ASTM: ASTM International
Document Number D1494
Publication Date April 10, 1997
Language en - English
Page Count 4
Revision Level 97(2001)e1
Supercedes
Committee D20.24
Publish Date Document Id Type View
Nov. 1, 2022 D1494-22 Revision
Dec. 1, 2017 D1494-17 Revision
Oct. 1, 2012 D1494-12 Revision
April 10, 1997 D1494-97R01E01 Revision
April 10, 1997 D1494-97 Revision
March 1, 2008 D1494-97R08E01 Reaffirmation
April 10, 1997 D1494-97R01 Reaffirmation