ASTM_D_3134_-_15.pdf

Designation:D313415Standard Practice forEstablishing Color and Gloss Tolerances1This standard is issued under the fixed designation D3134;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.INTRODUCTIONPermissible color and gloss deviations from a standard are generally dependent upon the colordiscrimination of the observer,on the lighting and surround in which the material is viewed,and onspecial considerations related to the design,manufacture,and practical usage of the colored materialor object.The tolerances,therefore,may be influenced by economic,technical,psychological,andpractical requirements.In many circumstances,acceptability of color and gloss deviations from astandard may differ appreciably from perceptibility for many reasons.With proper allowances,perceptibility data can be used as an aid to develop permissible tolerances.Finally,these consider-ations should result in a specification acceptable to both buyer and seller.1.Scope1.1 This practice describes a procedure for establishingtolerances and evaluating the color and gloss of specimens withrespect to specified standards.This practice is appropriate fornonfluorescent opaque specimens.1.2 This practice does not indicate the extent of tolerances,but gives guidance on how they can be set.For productspecification,the tolerances between specimens and the speci-fied standard should be agreed upon between the purchaser andthe seller.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.2.Referenced Documents2.1 ASTM Standards:2D523 Test Method for Specular GlossD1535 Practice for Specifying Color by the Munsell SystemD1729 Practice for Visual Appraisal of Colors and ColorDifferences of Diffusely-Illuminated Opaque MaterialsD2244 Practice for Calculation of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD3964 Practice for Selection of Coating Specimens forAppearance MeasurementsD4449 Test Method for Visual Evaluation of Gloss Differ-ences Between Surfaces of Similar AppearanceD5531 Guide for Preparation,Maintenance,and Distributionof Physical Product Standards for Color and GeometricAppearance of CoatingsE284 Terminology of AppearanceE308 Practice for Computing the Colors of Objects by Usingthe CIE SystemE312 Practice for Description and Selection of Conditionsfor Photographing Specimens Using Analog(Film)Cam-eras and Digital Still Cameras(DSC)E805 Practice for Identification of Instrumental Methods ofColor or Color-Difference Measurement of MaterialsE1164 Practice for Obtaining Spectrometric Data for Object-Color EvaluationE1331 Test Method for Reflectance Factor and Color bySpectrophotometry Using Hemispherical GeometryE1345 Practice for Reducing the Effect of Variability ofColor Measurement by Use of Multiple MeasurementsE1349 Test Method for Reflectance Factor and Color bySpectrophotometry Using Bidirectional(45:0 or 0:45)GeometryE1360 Practice for Specifying Color by Using the OpticalSociety of America Uniform Color Scales System1This practice is under the jurisdiction of ASTM Committee E12 on Color andAppearance and is the direct responsibility of Subcommittee E12.11 on VisualMethods.Current edition approved Jan.1,2015.Published February 2015.Originallyapproved in 1972.Last previous edition approved in 2008 as D3134 97(2008)1.DOI:10.1520/D3134-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E1499 Guide for Selection,Evaluation,and Training ofObserversE1541 Practice for Specifying and Matching Color Usingthe Colorcurve System(Withdrawn 2007)32.2 CIE Publication:CIE Publication 015 Colorimetry42.3 ISO Standard:ISO 15930 Graphic Technology Part 4:Complete ex-change of CMYK and spot colour printing data using PDF1.4(PDF/X-la)3.Terminology3.1 DefinitionsFor definitions of terms related to thispractice see Terminology E284.4.Summary of Practice4.1 This practice consists of recommendations for the se-lection of a standard,the necessary physical measurements toassess the permanence of the standard to reproduce it whenneeded,and to establish tolerances.4.2 Recommendations are given for the determination of theconformance of a specimen to preestablished color and glosstolerances by instrumental or visual means.5.Significance and Use5.1 Color specifications are cent