Designation:D2050−11StandardTerminologyRelatingtoFastenersandClosuresUsedwithTextiles1ThisstandardisissuedunderthefixeddesignationD2050;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisterminologydocumentcoversterminologypertain-ingtoitemsthatareconsideredfastenersandclosuressuchasbuttons,hookandlooptouchfasteners,snapfastenersandslidefastenersusedinthemanufactureoftextileproducts,exceptforseamsandstitches.1.2Section3,Terminology,iscategorizedintofoursubsections,specifictothefourareasofspecializationunderthisdocument:1.2.1RelatingtoButtons1.2.2RelatingHookandLoopTouchFasteners1.2.3RelatingtoSnapFasteners1.2.4RelatingtoSlideFasteners1.3Terminologyrelatingspecificallytobuttonscoversspe-cialtermsorspecialmeaningsusedinthebuttonindustry.Theseapplyonlytosew-throughflangeandshankbuttons.1.3.1Theprincipaltypesofbuttonsdefinedinthistermi-nologydocumentareillustratedinFigs.1-8.1.3.2Thesefiguresaredescriptiveonlyandarenotintendedtoberestrictiveastodesign.1.4Terminologyrelatingspecificallytosnapfastenersin-cludesillustrationofprong-ringattachedfastenerpartsinFig.9.1.4.1Thesefiguresaredescriptiveonlyandarenotintendedtoberestrictiveastodesign.1.5TerminologyrelatingspecificallytotheprinciplepartsofslidefastenersdefinedinthisterminologyareillustratedinFigs.10-19.1.5.1Thesefiguresaredescriptiveonlyandarenotintendedtoberestrictiveastodesign.1.6Terminologyrelatingspecificallytothetextilejoiningstructures(seamsandstitches)arediscussedindetailinTerminologyD5646.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTe...
