ASTM D1729-96
Historical Standard: ASTM D1729-96 Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
SUPERSEDED (see Active link, below)
ASTM D1729
1. Scope
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D523 Test Method for Specular Gloss
D1535 Practice for Specifying Color by the Munsell System
D4086 Practice for Visual Evaluation of Metamerism
D5531 Guide for Preparation, Maintenance, and Distribution of Physical Product Standards for Color and Geometric Appearance of Coatings
E284 Terminology of Appearance
E308 Practice for Computing the Colors of Objects by Using the CIE System
E1164 Practice for Obtaining Spectrometric Data for Object-Color Evaluation
E1499 Guide for Selection, Evaluation, and Training of Observers
ISO/CIE Standard
10526 CIE Standard Colorimetric Illuminants (1991)Keywords
color; color difference; color matching; lighting; viewing conditions; visual examination color; visual examination color difference; Visual examination--paints/related coatings/materials; Color--paints/related coatings/materials; Color difference measurements; Diffuse light transmission; Geometric analysis--paints/related coatings/materials; Latex paints; Light transmission and reflection; Opacity/opaque materials; Radiometers; Spectral data--paints/related coatings; Spectroradiometric data analysis;
ICS Code
ICS Number Code 17.180.20 (Colours and measurement of light)
DOI: 10.1520/D1729-96
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