Designation:D2654−22StandardTestMethodsforMoistureinTextiles1ThisstandardisissuedunderthefixeddesignationD2654;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscovermeasurementofmoistureintextilematerialsas(1)moisturecontentorpick-upusingambientairforoven-drying,(2)moisturecontentorpick-upusingstandardatmospherefortestingtextilesforoven-drying,(3)moisturecontentorpick-upatmoistureequilibrium,and(4)moistureregain.Thesetestmethodsareapplicabletoallfibersnaturalorman-made,andinallformsfromfiberorfilamenttofinishedfabric,subjecttothelimitationssetforthin1.1.1through1.1.4.Blendsoffibersshallalsobetestedbythesemethods.1.1.1Procedure1—Thisoven-dryingtechnique,usingam-bientairheatedto105°C,shallbeusedinanysituationinwhichasimpleandconvenientmethodforroutineprocesscontrolorwhenin-plantevaluationisneededtodetermineanapproximationofthemoisturecontentorpickup.Itisnotrecommendedforjuteorgreasewool,orforacceptancetestingincommercialtransactions.1.1.2Procedure2—Oven-dryingtechnique,usingairfromthestandardatmosphereairfortestingtextilesthatisheatedto105°Candotherrefinementsintechnique,shallbeusedasabasisforcommercialtransactionsforallmaterialsforwhichitisknownthatnosignificantquantityofnon-aqueousvolatilematterispresenton,orin,thematerialtobetested.NOTE1—TheairsupplyforProcedure2hasbeenchangedfromdesiccatedairtotheairfromthestandardatmospherefortestingtextilesbecausethelatterisincommonuseandisprescribedinTestMethodD494forcommercialmassofashipment.Byagreement,however,desiccatedairmaybeused.1.1.3Procedure3—Thisoven-dryingtechniqueusesspeci-mensinmoisture-equilibriumunderspecifiedconditionsandanovenwithanairsupplyofspecifiedtemperatureandrelativehumidityheatedto105°C,andotherrefinementsintechnique.Theprocedureisusedtodeterminethemoisturecontent...
