ASTM_D_2053_-_99_2022.pdf

Designation:D205399(Reapproved 2022)Standard Test Method forColorfastness of Zippers to Light1This standard is issued under the fixed designation D2053;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.Scope1.1 This test method covers the determination of the altera-tion in shade of the textile portion of zippers when exposed tolight,regardless of the materials of manufacture.1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.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,health,and environmental practices and deter-mine the applicability 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:2D123 Terminology Relating to TextilesD2050 Terminology Relating to Subassemblies Used in theManufacture of TextilesD2051 Test Method for Durability of Finish of Zippers toLaunderingD2052 Test Method for Colorfastness of Zippers to Dry-cleaningD2054 Test Method for Colorfastness of Zipper Tapes toCrockingD2057 Test Method for Colorfastness of Zippers to Laun-deringD2058 Test Method for Durability of Finish of Zippers toDrycleaningD2059 Test Method for Resistance of Zippers to Salt Spray(Fog)D2060 Test Methods for Measuring Zipper DimensionsD2061 Test Methods for Strength Tests for ZippersD2062 Test Methods for Operability of Zippers2.2 AATCC Methods:Test Method 16 Colorfastness to Light3AATCC Gray Scale for Color Change3Evaluation Procedure 1 Gray Scale for Color Change33.Terminology3.1 DefinitionsFor definitions of zipper terms used in thisstandard,refer to Terminology D2050.For definitions of othertextile terminology used in this standard,refer to TerminologyD123.4.Summary of Test Method4.1 A specimen of zipper tape and chain is exposed tocontinuous artificial light for a predetermined period of expo-sure.Fading of the specimen is evaluated and rated by meansof the AATCC Gray Scale for Color Change.5.Significance and Use5.1 This test method is useful in determining if the loss ofcolor due to light exposure is satisfactory for the intendedend-use.5.2 This test method is considered satisfactory for accep-tance testing of commercial shipments because the method hasbeen used extensively in the trade for acceptance testing.5.2.1 If there are differences of practical significance be-tween reported test results for two laboratories(or more),comparative tests should be performed to determine if their isa statistical bias between them,using competent statisticalassistance.As a minimum,the test samples should be used thatare as homogeneous as possible,that are drawn from thematerial from which the disparate test results were obtained,and that are randomly assigned in equal numbers to eachlaboratory for testing.Other materials with established testvalues may be used for this purpose.The test results from thetwo laboratories should be compared using a statistical test for1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.54 on Subassemblies.This testmethod was developed in cooperation with the Slide Fastener Association,Inc.Current edition approved March 1,2022.Published March 2022.Originallyapproved in 1961.Last previous edition approved in 2015 as D2053 99(2015).DOI:10.1520/D2053-99R22.2For 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.3Technical Manual of the American Association of Textile Chemists andColorists,P.O.Box 12215,Research Triangle Park,NC 27709.Copyright 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.1unpaired data,at a probability level chosen prior to the testingseries.If a bias is found,either its cause must be found andcorrected,or future test results mus