ASTM_D_6544_-_21.pdf

Designation:D654421Standard Practice forPreparation of Textiles Prior to Ultraviolet(UV)Transmission Testing1This standard is issued under the fixed designation D6544;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 practice covers standardized exposures tolaundering,simulated sunlight,and chlorinated pool water tosimulate two years of seasonal exposure for apparel textileslabeled as ultraviolet(UV)-protective.1.2 This practice is used in conjunction with AATCCTM183 and Specification D6603 as they relate to testing andlabeling of UV-protective textiles after two years of simulatedseasonal use.1.3 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.1.4 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.1.5 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 TextilesD3938 Guide for Determining or Confirming Care Instruc-tions for Apparel and Other Textile ProductsD6603 Specification for Labeling of UV-Protective TextilesE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or Process2.2 AATCC Test Methods and Documents:3AATCC LP1 Laboratory Procedure for Home Laundering:Machine WashingAATCC LP2 Laboratory Procedure for Home Laundering:Hand WashingAATCC M11 Glossary of AATCC Standard TerminologyAATCC TM16.3 Colorfastness to Light:Xenon-ArcAATCC TM162 Test Method for Colorfastness to Water:Chlorinated PoolAATCC TM172 Test Method for Colorfastness to PowderedNon-chlorine Bleach in Home LaunderingAATCC TM183 Test Method for Transmittance or Blockingof Erythemally Weighted Ultraviolet Radiation throughFabricsAATCC TM188 Test Method for Colorfastness to SodiumHypochlorite Bleach in Home Laundering3.Terminology3.1 DefinitionsFor definitions of other textile terms usedin this practice,refer to Terminology D123 and AATCC M11.4.Summary of Practice4.1 This practice directs the exposure of a textile labeled asUV-protective,to laundering,simulated sunlight,and chlori-nated pool water,conditions generally known to affect UVtransmittance.4.2 This practice guides selection and sequencing of expo-sure conditions for textiles intended to be labeled as UV-protective.5.Significance and Use5.1 The significance of this practice is that a textile intendedto be labeled as UV-protective,which will ultimately besubmitted for UV transmittance testing,will be in a state thatsimulates its condition at the end of two years of normalseasonal use.UV resistance of a textile is dynamic and will1This practice is under the jurisdiction ofASTM Committee D13 on Textiles andis the direct responsibility of Subcommittee D13.65 on UV Protective Fabrics andClothing.Current edition approved July 1,2021.Published August 2021.Originallyapproved in 2000.Last previous edition approved in 2012 as D6544 12 which waswithdrawn January 2021 and reinstated in July 2021.DOI:10.1520/D6544-21.2For 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.3Available from American Association of Textile Chemists and Colorists(AATCC),P.O.Box 12215,Research Triangle Park,NC 27709,http:/www.aatcc.org.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.1constantly change.The simulated conditions are to be regardedas only estimates of the changes that will occur to the textile intwo years of normal seasonal use.5.2 To learn the quantitative measure of UV transmission orblocking,reference AATCC TM183.5.3 To label textiles as UV-protective,reference Specifica-tion D6603.6.Sampling and Test Specimens6.1 Primary Sampling UnitConsider rolls or b