ASTM_D_2053_-_99_2015.pdf

Designation:D205399(Reapproved 2015)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 either SI units or inch-pound unitsare to be regarded separately as the standard.Within the text,the inch-pound units are shown in parentheses.The valuesstated in each system are not exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith this test method.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:2D123 Terminology Relating to TextilesD2050 Terminology Relating to Fasteners and ClosuresUsed with 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 forunpaired data,at a probability level chosen prior to the testingseries.If a bias is found,either its cause must be found and1This 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 July 1,2015.Published September 2015.Originallyapproved in 1961.Last previous edition approved in 2010 as D2053 99(2010).DOI:10.1520/D2053-99R15.2For 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 States1 corrected,or future test results must be adjusted in consider-ation of the known bias.5.3 The test method(s)in this standard along with those inTest Methods D2051,D2052,D2054,D2057,D2058,D2059,D2060,D2061,and D2062 are a collection of proven zippertest methods.They can be used as aids in the evaluation ofzippers without the need for a thorough knowledge of zippers.The enumerated test methods do not provide for the evaluationof all zipper properties.Besides those properties measured by