ASTM_D_6544_-_12.pdf

Designation:D654412Standard 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 towhich cloth,labeled as ultraviolet-(UV)protective,must beexposed prior to testing for UV transmission.1.2 This practice leads to measurement of the residual levelof UV-protection in fabrics or garments labeled as sun-orUV-protective,after exposure to conditions that relate to abouttwo years of seasonal use.The UV transmission measurementsmay be done in accordance with AATCC Test Method 183using fabrics prepared in accordance with this practice.Thismeasurement may be used in support of a label statementregarding UV protection.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 This standard does not purport to address the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD2905 Practice for Statements on Number of Specimens forTextiles(Withdrawn 2008)3D3938 Guide for Determining or Confirming Care Instruc-tions for Apparel and Other Textile ProductsD6603 Specification for Labeling of UV-Protective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:4AATCC 16E Colorfastness to LightAATCC 135 Dimensional Changes in Automatic HomeLaundering of Woven or Knit FabricAATCC 162 Colorfastness to Water:Chlorinated PoolAATCC 172 Colorfastness to Non-chlorine Bleach in HomeLaunderingAATCC 183 Transmittance or Blocking of ErythemallyWeighted Ultraviolet Radiation through FabricsGlossary of AATCC Standard Terminology3.Terminology3.1 DefinitionsFor definitions of other textile terms usedin this practice,refer to Terminology D123 and the Glossary ofAATCC Standard Terminology.4.Summary of Practice4.1 This practice directs the exposure of cloth,labeled asUV-protective,to conditions of laundering,simulated sunlight,and chlorinated pool water generally known to affect UVtransmittance.4.2 This practice directs selection and sequencing of expo-sure conditions for UV-protective fabrics and garments.5.Significance and Use5.1 The significance of this practice is that cloth,labeled asUV-protective,which will ultimately be submitted for UVtransmittance testing will be in a state that simulates theircondition at the end of two years of normal seasonal use.Therefore,the UV-protection level ultimately placed on a labelestimates the maximum UV transmittance of the garmentfabric during a two-year life cycle.1This practice is under the jurisdiction ofASTM Committee D13 on Textilesandis the direct responsibility of Subcommittee D13.65 on UV Protective Fabrics andClothing.Current edition Feb.1,2012.Published February 2012.Originally approved in2000.Last previous edition approved in 2011 as D6544 11.DOI:10.1520/D6544-12.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available 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 States1 6.Sampling and Test Specimens6.1 Primary Sampling UnitConsider rolls or bolts offabric,or cartons of garments to be the primary sampling unit,as applicable.6.1.1 Take the number of primary sampling units from eachlot,shipment,or production run in accordance with PracticeE122.6.2 Laboratory Sampling Unit:6.2.1 Take the number of laboratory sampling units from theprimary sampling unit in accordance with Practice E122.6.2.2 Rolls or Bolts of FabricTake from each primarysampling unit one full-width piece of fabric that is about 1 m(1 yd)in length along the selvage(machine direction),afterremoving a first 1-mm length.For narrow fabrics,a longersample length may be required to meet the test specimenrequirements.6.2.3 GarmentsTake from each primary sampling unit oneentire garment.For small garments,such as childrens,wheresufficient material is not available to meet the t