【英文标准名称】:Rubberlatices.Methodsoftest.Determinationofdryrubbercontentofnaturalrubberlatices
【原文标准名称】:橡胶胶乳.第3部分:试验方法.第4节:天然橡胶胶乳的干橡胶含量的测定
【标准号】:BS6057Pt.3Sec.3.4-1990
【标准状态】:作废
【国别】:英国
【发布日期】:1990-08-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:天然橡胶;胶乳;化学分析和试验;干重测定;含量测定;试验条件;浓缩物
【英文主题词】:naturalrubber;determinationofcontent;concentrates;dryweightdetermination;latices;chemicalanalysisandtesting;testingconditions
【摘要】:
【中国标准分类号】:B66
【国际标准分类号】:
【页数】:6P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforBreakingStrengthofYarninSkeinForm
【原文标准名称】:绞纱形式下纱线的断裂强度的试验方法
【标准号】:ASTMD1578-1993(2006)e1
【标准状态】:现行
【国别】:
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D13.58
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:绞纱;纺织材料;试验;断裂荷载;纱;纺织试验;机织物
【英文主题词】:breakingstrength;breakingtenacity;skein;skeinbreakfactor;strand;yarn
【摘要】:1.1Thistestmethodcoversthedeterminationofthebreakingstrengthofyarninskeinform.Theobservedbreakingstrengthisexpressedinunitsofforce,andequationsareprovidedtoconvertbreakingstrengthtoskeinbreakingtenacityandtoskeinbreakfactor.Note1Forthedeterminationofthebreakingstrengthandelongationofyarnbythesinglestrandmethod,refertoTestMethodD2256.1.2Thistestmethodisapplicabletospunyarns,eithersingleorplied,composedofanyfiberorblendoffibers,butisnotsuitableforyarnswhichstretchmorethan5%whenthetensionisincreasedfrom2.5to7.5mN/texor0.03to0.08gf/denier.1.3Thistestmethodprovidesthreeoptionsbasedontheperimeterofthereel,thenumberofwrapsintheskein,andthemachinespeedortime-to-break.1.3.1Option1Eighty,forty,ortwentyturnsona1.50-mor1.5-ydreel,brokenat300mm/minor12in./min.1.3.2Option2Fiftyturnsona1.00-mor1-ydreel,brokenat300mm/minor12in./min.1.3.3Option3Fiftyturnsona1-mreel,brokenin20s.Note2Option1isingeneraluseintheUnitedStates,Option2isusedforwoolenyarns,andOption3hasbeenproposedintheInternationalStandardsOrganization(ISO)forinternationaluse.Note3Metricreelsareavailablewith1and1.125-mcircumferences.Datafromthetworeelswillbeabout1%different(see).ISOusesa1-mcircumferencereel.1.4Thistestmethodisfrequentlycombinedwiththedeterminationoflineardensitycarriedoutonthesameskeins.Specialprecautionsforreelingsuchskeinsarenoted.1.5Whereappropriate,thistestmethodstatesallrequirementsinSIunits.Thetraditionalunitsareinch-poundandareexactvalues.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_50
【页数】:8P.;A4
【正文语种】: