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Designation: D5531 − 17Standard Guide forPreparation, Maintenance, and Distribution of PhysicalProduct Standards for Color and Geometric Appearance ofCoatings 1This standard is issued under the f i xed designation D5531; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (´) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This guide covers three levels of physical productstandards for color or appearance, or both, commonly used inthe coatings industry, provides terminology to describe eachlevel, and describes techniques for generating and caring forstandards.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards: 2D16 Terminology for Paint, Related Coatings, Materials, andApplicationsD523 Test Method for Specular GlossD823 Practices for Producing Films of Uniform Thicknessof Paint, Varnish, and Related Products on Test PanelsD1729 Practice for Visual Appraisal of Colors and ColorDifferences of Diffusely-Illuminated Opaque MaterialsD2244 Practice for Calculation of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD3134 Practice for Establishing Color and Gloss TolerancesD4086 Practice for Visual Evaluation of MetamerismD4449 Test Method for Visual Evaluation of Gloss Differ-ences Between Surfaces of Similar AppearanceE284 Terminology of AppearanceE308 Practice for Computing the Colors of Objects by Usingthe CIE SystemE430 Test Methods for Measurement of Gloss of High-GlossSurfaces by Abridged GoniophotometryE805 Practice for Identif i cation of Instrumental Methods ofColor or Color-Difference Measurement of MaterialsE1164 Practice for Obtaining Spectrometric Data for Object-Color EvaluationE1331 Test Method for Ref l ectance Factor and Color bySpectrophotometry Using Hemispherical GeometryE1345 Practice for Reducing the Effect of Variability ofColor Measurement by Use of Multiple MeasurementsE1347 Test Method for Color and Color-Difference Mea-surement by Tristimulus ColorimetryE1349 Test Method for Ref l ectance Factor and Color bySpectrophotometry Using Bidirectional (45°:0° or 0°:45°)Geometry2.2 Society of Automotive Engineers Standard:SAE J1545 Recommended Practice for Instrumental ColorDifference Measurement for Exterior Finishes, Textiles,and Colored Trim 33. Terminology3.1 The def i nitions in Terminology E284 and D16 areapplicable to this standard. The terms in E284 take precedenceover those in D16 if differences exist.3.2 Def i nitions of Terms Specif i c to This Standard:1 This guide is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.26 on Optical Properties.Current edition approved July 1, 2017. Published July 2017. Originally approvedin 1994. Last previous edition approved in 2011 as D5531 – 05 (2011). DOI:10.1520/D5531-17.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at service@astm.org. For Annual Book of ASTMStandards volume information, refer to the standard’s Document Summary page onthe ASTM website.3 Available from American Architectural Manufacturers Association (AAMA),1827 Walden Office Square, Suite 550, Schaumburg, IL 60173-4268, http://www.aamanet.org.Available from Society of Automotive Engineers (SAE), 400Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.*A Summary of Changes section appears at the end of this standardCopyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1