【英文标准名称】:StandardTestMethodforStiffnessofFabrics
【原文标准名称】:织物硬挺性标准试验方法
【标准号】:ASTMD1388-2007a
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D13.60
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲长度;硬挺度;测试;试验;机织物
【英文主题词】:bendinglength,fabric;fabric;flexuralrigidity,stiffness;Stiffness--textilematerials/applications;Textilefabrics(general);
【摘要】:Bothtestoptionsinthistestmethodareconsideredsatisfactoryforacceptancetestingofcommercialshipmentssincecurrentestimatesofbetween-laboratoryprecisionareacceptableandthemethodisusedextensivelyinthetradeforacceptancetesting.Incaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossibleandthatarefromalotofmaterialofthetypeinquestion.Testspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.Theaverageresultsfromthetwolaboratoriesshouldbecomparedusingtheappropriatestatisticalanalysisandanacceptableprobabilitylevelchosenbythetwopartiesbeforetestingisbegun.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandthesuppliermustagreetointerpretfuturetestresultswithconsiderationtotheknownbias.Ingeneral,theseproceduresaremoresuitablefortestingwovenfabricsthanknitfabrics.TheCantileverTestOptionisthepreferredprocedurebecauseitissimplertoperform.Itis,however,notsuitableforverylimpfabricsorthosethatshowamarkedtendencytocurlortwistatacutedge.TheHeartLoopTestOptionissuitableforfabricsthatshowatendencytocurlortwist.Bothoptionscanprovideacorrelationwithasubjectiveevaluationofagivenfabrictype.Thatis,ahighernumberrepresentsastifferfabric.Thestiffnessofafabricmaychangewithstorage.Noevidencehasbeenfoundshowingthatbendinglengthisdependentonthewidth.Thetendencyforspecimenstocurlortwistwillaffecttheresult,becauseoftherigidityprovidedattheedge.Consequently,thewiderthestrip,thelessimportantistheedgeeffect.1.1Thistestmethodcoversthemeasurementofstiffnesspropertiesoffabrics.Bendinglengthismeasuredandflexuralrigidityiscalculated.Twoproceduresareprovided.1.1.1OptionA8212;CantileverTest,employingtheprincipleofcantileverbendingofthefabricunderitsownmass.1.1.2OptionB8212;HeartLoopTest,employingtheprincipleofaloopformedinafabricstripandhungvertically.1.2Thistestmethodappliestomostfabricsincludingwovenfabrics,airbagfabrics,blankets,nappedfabrics,knittedfabrics,layeredfabrics,pilefabrics.Thefabricsmaybeuntreated,heavilysized,coated,resin-treated,orotherwisetreated.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.TheU.S.customaryunitsmaybeapproximate.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_30;
【页数】:6P.;A4
【正文语种】:


【英文标准名称】:Specificationforfixingaccessoriesforbuildingpurposes-Fixingsforsheet,roofandwallcoverings
【原文标准名称】:建筑用固定附件规范.板材,屋面与墙壁涂层用固定件
【标准号】:BS1494-1-1964
【标准状态】:作废
【国别】:英国
【发布日期】:1964-07-13
【实施或试行日期】:1964-07-13
【发布单位】:(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:铝;螺栓;卡箍;直径;尺寸规格;传动螺钉;外螺纹紧固件;吊钩;内螺纹紧固件;作标记;螺母;岩石锚钉;屋顶覆盖物;螺钉(螺栓);自攻丝螺钉;薄板屋顶;板材墙面贴面;钢管;螺纹;垫圈;木螺丝
【英文主题词】:Aluminium;Bolts;Clips;Diameter;Dimensions;Drivescrews;External-threadfasteners;Hooks;Internal-threadfasteners;Marking;Nuts;Rockanchors;Roofcoverings;Screws(bolts);Self-tappingscrews;Sheetroofcoverings;Sheetwallcoverings;Steels;Threads;Washers;Woodscrews
【摘要】:Hookbolts,nuts;drivescrews;washers;self-tappingscrews;roofingbolts,nuts,clips;roofingscrews;sheetingclips.Materials(steelandaluminium),dimensions.
【中国标准分类号】:P96
【国际标准分类号】:21_060_01;91_060_10;91_060_20
【页数】:28P.;A4
【正文语种】:英语