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1、Designation:D1777?96(Reapproved2015)StardTestMethodfThicknessofTextileMaterials1ThisstardisissuedunderthefixeddesignationD1777thenumberimmediatelyfollowingthedesignationindicatestheyearofiginaladoptioninthecaseofrevision

2、theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.1.Scope1.1Thistestmethodcoversthemeasurementofthethicknessofmosttextilemate

3、rials.1.2Thistestmethodappliestomostfabricsincludingwovenfabricsairbagfabricsblanketsnappedfabricsknittedfabricslayeredfabricspilefabrics.Thefabricsmaybeuntreatedheavilysizedcoatedresintreatedotherwisetreated.Instruction

4、sareprovidedftestingthicknessexceptasprovidedfinanotherstardsuchaslistedinSection2.1.3ThevaluesstatedinSIunitsaretoberegardedasthestard.Thevaluesstatedininchpoundmaybeapproximate.1.4Thisstarddoesnotpurpttoaddressallofthe

5、safetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2D123T

6、erminologyRelatingtoTextilesD1776PracticefConditioningTestingTextilesD2904PracticefInterlabatyTestingofaTextileTestMethodthatProducesNmallyDistributedData(Withdrawn2008)3D2906PracticefStatementsonPrecisionBiasfTextiles(W

7、ithdrawn2008)32.2ASTMAdjuncts:TEXPAC43.Terminology3.1Definitions—FdefinitionsoftextiletermsusedinthistestmethodseeTerminologyD123.3.1.1Thefollowingtermsarerelevanttothisstard:crossmachinedirectionmachinedirectionpressure

8、thickness.4.SummaryofTestMethod4.1Aspecimenisplacedonthebaseofathicknessgaugeaweightedpresserfootlowered.Thedisplacementbetweenthebasethepresserfootismeasuredasthethicknessofthespecimen.5.SignificanceUse5.1Thistestmethod

9、isconsideredsatisfactyfacceptancetestingofcommercialshipmentssincecurrentestimatesofbetweenlabatyprecisionareacceptablethistestmethodisusedextensivelyinthetradefacceptancetesting.5.1.1Incaseofadisputearisingfromdifferenc

10、esinreptedtestresultswhenusingthistestmethodfacceptancetestingofcommercialshipmentsthepurchaserthesuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlabaties.Competentstatisticalassistan

11、ceisrecommendedftheinvestigationofbias.Asaminimumthetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossiblethatarefromalotofmaterialofthetypeinquestion.Testspecimensthenshouldberomlyassignedinequalnumbers

12、toeachlabatyftesting.Theaverageresultsfromthetwolabatiesshouldbecomparedusingtheappropriatestatisticalanalysisanacceptableprobabilitylevelchosenbythetwopartiesbefetestingisbegun.Ifabiasisfoundeitheritscausemustbefoundcre

13、ctedthepurchaserthesuppliermustagreetointerpretfuturetestresultswithconsiderationtotheknownbias.5.2Thicknessisoneofthebasicphysicalpropertiesoftextilematerials.Incertainindustrialapplicationsthethicknessmayrequirerigidco

14、ntrolwithinspecifiedlimits.Bulkwarmthpropertiesoftextilematerialsareoftenestimatedfromtheirthicknessvaluesthicknessisalsousefulinmeasuringsomeperfmanceacteristicssuchasbefeafterabrasionshrinkage.1Thistestmethodisunderthe

15、jurisdictionofASTMCommitteeD13onTextilesisthedirectresponsibilityofSubcommitteeD13.59onFabricTestMethodsGeneral.CurrenteditionapprovedJuly12015.PublishedSeptember2015.iginallyapprovedin1960.Lastpreviouseditionapprovedin2

16、011asD1777–96(2011)?1.DOI:10.1520D177796R15.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.3Thel

17、astapprovedversionofthishisticalstardisreferencedonwww.astm.g.4APCprogramonfloppydiskfanalyzingCommitteeD13interlabatydataareavailablefromASTMHeadquarters.Fa31?2in.diskrequestPCN:1242904018.Fa51?4in.diskrequestPCN:124290

18、4118.Copyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates1ofthelabatysamplenonearertheedgethanonetenthitswidth.Ensurespecimensarefreeoffoldscreaseswrinkles.Avoidgettingoilwatergrea

19、sesofthonthespecimenswhenhling.8.PreparationofTestApparatusCalibration8.1UseTable1tothethicknessgaugedesignatedfthematerialtobetested.8.2Verifycalibrationofthethicknessgaugeasdirectedinthemanufacturer’sinstructions.8.3Wh

20、enusingmicroprocessautomaticdatagatheringsystemssettheappropriateparametersasdefinedinthemanufacturer’sinstructions.9.Conditioning9.1Preconditionthespecimensbybringingthemtoapproximatemoistureequilibriuminthestardatmosph

21、erefpreconditioningtextilesasspecifiedinPracticeD1776unlessotherwisespecifiedinamaterialspecificationcontractder.9.2Afterpreconditioningbringthetestspecimenstomoistureequilibriumftestinginthestardatmosphereftestingtextil

22、esasspecifiedinPracticeD1776ifapplicableinthespecifiedatmosphereinwhichthetestingistobeperfmedunlessotherwisespecifiedinamaterialspecificationcontractder.10.Procedure10.1Testtheconditionedspecimensinthestardatmospherefte

23、stingtextileswhichis2161C(7062F)6562%relativehuityunlessotherwisespecifiedinamaterialspecificationcontractder.10.2Hlethetestspecimenscarefullytoavoidalteringthenaturalstateofthematerial.10.3Placethespecimenfacesideupothe

24、rwiseasspecifiedontheanvilofthethicknessgauge.Graduallylowerthepresserfootintocontactwiththespecimentaking5to6stoapplyfullpressurefmosttextiles3to4sfglassmaterialtextiles.10.4Readrecdthethicknessvaluetoareadabilityshowni

25、nTable1.10.5Continueasdirectedin10.2–10.4untiltenspecimenshavebeentestedfromeachlabatysamplingunit.11.Calculation11.1ThicknessIndividualSpecimens—ThethicknessfindividualspecimensusingthereadabilitycolumnofTable1isreaddir

26、ectlyfromthethicknessgaugedatacollectionsystemunlessotherwisespecifiedinamaterialspecificationcontractder.11.2ThicknessAverage—Calculatetheaveragethicknessfeachlabatysamplingunitfthelot.11.3StardDeviationCoeff?cientofVar

27、iation—Calculatewhenrequested.11.4ComputerProcessedData—Whendataareautomaticallycomputerprocessedcalculationsgenerallyarecontainedintheassociatedsoftware.Recdvaluesasreadfromthedirectreadingscaledesignatedinthereadabilit

28、ycolumnofTable1unlessotherwisespecified.Inanyeventitisrecommendedthatcomputerprocesseddatabeverifiedagainstknownpropertyvaluesitssoftwaredescribedintherept.12.Rept12.1ReptthatthethicknesswasdeterminedinaccdancewithTestMe

29、thodD1777.Describethematerialproductsampledthemethodofsamplingused.12.2Reptthefollowinginfmationfeachlabatysamplingunitfthelotasapplicabletoamaterialspecificationcontractder:12.2.1Thickness.12.2.2TestingoptionedfromTable

30、1.12.2.3Whencalculatedthestarddeviationthecoefficientofvariation.TABLE2NumberofRollsPiecesofFabricintheLotSampleNumberofRollsPiecesinLotInclusiveNumberofRollsPiecesinLotSample1to3all4to24425to505over5010%toamaximumof10ro

31、llspiecesTABLE3ThicknessofFabricsmilsTestOptionsMaterialsGrAverageComponentsofVarianceExpressedasStardDeviationsASingleOperatComponentWithinLabatyComponentBetweenLabatyComponentOption1Mat6S0002H7.130.190.170.66Mat7S28305

32、11.491.460.550.02Mat9SDenim38.650.750.411.54Option2Mat6S0002H7.040.230.000.72Mat7S2830511.840.230.270.48Mat9SDenim38.330.640.001.64Option3Mat6S0002H6.680.320.180.58Mat7S2830511.500.370.130.49Mat9SDenim36.500.600.192.41Op

33、tion4Mat6S0002H10.200.400.00...Mat7S2830512.850.360.00...Mat9SDenim43.951.080.54...Option5(0.1psi)Mat10Pile178.088.790.003.30Mat14Pile46.911.150.160.69Option5(1.1psi)Mat10Pile101.674.630.0010.08Mat14Pile38.371.510.330.28

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