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ASTM D1729-96

Historical Revision

Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials

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1.1 This practice specifies the equipment and procedures for visual appraisal of the colors and color differences of opaque materials that are diffusely illuminated. These specification are of critical importance in color matching. This practice requires judgments by observers with normal color vision.

1.2 Critical visual appraisal of colors and color differences of materials such as metallic and pearlescent paints requires illumination that is nearly a geometric simulation of sunlight, because such directional illumination permits observation of the glitter and goniochromatism that characterize such materials. Such viewing conditions are beyond the scope of this practice.

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

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.


SDO ASTM: ASTM International
Document Number D1729
Publication Date Jan. 1, 1996
Language en - English
Page Count 4
Revision Level 96
Supercedes
Committee E12.11
Publish Date Document Id Type View
June 1, 2022 D1729-22 Revision
Jan. 1, 2016 D1729-16 Revision
Jan. 1, 1996 D1729-96 Revision
Dec. 1, 2009 D1729-96R09 Reaffirmation
Dec. 1, 2003 D1729-96R03 Reaffirmation