ASTM_D_6840_-_02_2013.pdf

Designation:D684002(Reapproved 2013)Standard Test Method forEffect of Drycleaning on Buttons1This standard is issued under the fixed designation D6840;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 is a means of determining the effect ofdrycleaning on certain physical attributes of buttons.The testmethod applies to buttons made from plastics,naturalmaterials,cast metal,stamped metal and electroplated plastic.1.1.1 The observed attributes of buttons made from plasticand natural materials include:color change,color transfer,solubility,swelling,and loss of finish.1.1.2 The observed attributes of buttons made of metal andelectroplated buttons include:color change,oxidation andcolor transfer.1.2 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 TextilesD2724 Test Methods for Bonded,Fused,and LaminatedApparel FabricsD3136 Terminology Relating to Care Labeling for Apparel,Textile,Home Furnishing,and Leather ProductsD5497 Terminology Relating to Buttons(Withdrawn 2011)33.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod,refer to Terminologies D123,D 5497D5497,andD3136.4.Summary of Test Method4.1 Specimens are sewn onto fabric and subjected to com-mercial dry cleaning.The dry cleaned specimens are measuredand visually compared to an original specimen.5.Significance and Use5.1 This test method is useful for determining the change tothe listed properties(see 1.1.1 and 1.1.2)and if the changes areacceptable for the intended use.This test may be used foracceptance testing of commercial shipments of buttons.5.2 If there are differences of practical significance betweenthe reported test results for two laboratories(or more),com-parative tests should be performed to determine if there is astatistical bias between them.As a minimum,test samplesshould be used that are as homogeneous as possible,that aredrawn from the material from which the disparate test resultswere obtained,and that are randomly assigned in equalnumbers to each laboratory for testing.The test results for 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 andcorrected,or future test results for that material must beadjusted in consideration of the known bias.6.Apparatus6.1 The drycleaning apparatus shall be as specified in TestMethod D2724.6.2 AATCC Multifiber Test Fabric No.10 or FA.6.3 Undyed Cotton Twill Cloth,weighing 270 6 70 g/m(0.66 0.15 lb/yd).6.4 Measuring DeviceA set of measuring calipers ormicrometer is required to determine the dimensions of thebuttons before and after testing.7.Sampling,Test Specimens,and Test Units7.1 Laboratory SampleRandomly select approximately100 samples,from the same carton and from boxes within thatcarton,that adequately represent the material from which testspecimens may be chosen.7.2 Test SpecimenRandomly select 10 to 20 buttons fromthe laboratory sample for testing.If the test specimens aresubmitted for pre-production approval,testing of 10 buttons is1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.54 on Subassemblies.Current edition approved Jan.1,2013.Published January 2013.Originallyapproved in 2002.Last previous edition approved in 2007 as D684002(2007).DOI:10.1520/D6840-02R13.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 acceptable.Retailers can test the garment with the buttonsattached.It is not necessary to place garment in specimen bag.8.Procedure8.1 Determination of Button DimensionsUsing a set ofcalipers or a micrometer bring the instrument faces or anvils incontact with the button diameter and thickness.Record bothdimensions to the nearest millimeter.8.1.1 All buttons to be tested are measured prior to and afterfinal drycleaning cycle.8.1.2 Four untested buttons of each size,color and style arekept as comparative references.8.1.3 Using AATCC Multifiber Test Fabric No.10 for oneside and Undyed Cotton Twill Cloth for the other,prepare