【英文标准名称】:Gasdetectortubes.Specificationforshorttermgasdetectortubes
【原文标准名称】:气体检测管.第1部分:短终端气体检测管规范
【标准号】:BS5343Pt.1-1986
【标准状态】:作废
【国别】:英国
【发布日期】:1986-07-31
【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】:玻璃管;安全装置;临时的;职业安全;性能;准确度;有毒气体;泵;校正;气体检测器;作标记;划刻度;探测器;寿命
【英文主题词】:pumps;toxicgases;occupationalsafety;glasstubes;life(durability);graduations;temporary;marking;safetydevices;calibration;gasdetectors;accuracy;detectors;performance
【摘要】:
【中国标准分类号】:N56
【国际标准分类号】:13_040_30
【页数】:8P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforQuantitativeAnalysisofTextiles
【原文标准名称】:纺织品定量分析的标准试验方法
【标准号】:ASTMD629-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D13.51
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Acceptancecriteria/testing--textilefabrics/fibers;Animalfibers;Bastandleaffibers/products;Celluloseandcellulosederivatives;Cellulosefiber;Chemicalproperties--textiles;Compositionanalysis--textiles;Cottonfibers;Cross-sectionmeasuremen
【摘要】:TestMethodsD629forthedeterminationofquantitativeanalysisoftextilesmaybeusedforacceptancetestingofcommercialshipmentsbutcautionisadvisedsinceinformationonbetween-laboratoryprecisionislacking.Comparativetestsasdirectedin5.1.1orbyTableD1909maybeadvisable.IncaseofadisputearisingfromdifferencesinreportedtestresultsusingTestMethodsD629foracceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimenswhichareashomogeneousaspossibleandwhicharefromalotofmaterialofthetypeinquestion.Thetestspecimenshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingStudent''st-testandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingbegan.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandsuppliermustagreetointerpretfuturetestresultsinthelightoftheknownbias.Theeffectsofthevariousreagentsusedinthechemicalmethodsontheresidualfibersinablenddependuponthehistoryofthefibersand,unlessotherwisestated,aregenerallytoosmallortoouncertaintowarranttheapplicationofcorrectionfactors.Fibercompositionisgenerallyexpressedeitherontheoven-drymassoftheoriginalsampleortheoven-drymassofthecleanfiberaftertheremovalofnonfibrousmaterials.Ifnonfibrousmaterialsarenotfirstremovedfromthetextilebeforethefiberanalysisiscarriedout,orifthetreatmentsdescribedinSection8areincapableofremovingthem,anysuchmaterialspresentwillincreasethepercentageofthefiberconstituentwithwhichtheyareremovedduringtheanalysis,assumingtheyaresolubleinthesolventused.Theanalyticalmethodsareintendedprimarilyfortheseparationofbinarymixturesoffibers.Theseproceduresmayalsobeusedfortheanalysisofmixturescontainingmorethantwotypesoffibersbyselectingthebestcombinationofmethodstouse(Table1).Sinceasequenceofsolventsonagivenfibermayproducedifferentresultsthantheexpectedresultsfromasinglesolvent,itisadvisabletodeterminetheresultsofsuchsequentialeffectswhentestingmultiplefiberblends.Itissometimesmoreconvenienttoseparatemechanicallytheyarnsinatextilewhichareofsimilartypes,andthenusetheappropriatechemicalmethodtoanalyzeeachofthecomponents.Table2showsthesolubilitiesofthevariousfibersindifferentchemicalreagents.1.1Thesetestmethodscoverproceduresforthedeterminationofthefiberblendcompositionofmixturesofthefiberslistedin1.2.Proceduresforquantitativeestimationoftheamountofmoistureandcertainnonfibrousmaterialsintextilesarealsodescribed,foruseintheanalysisofmixtures,butthesearenottheprimarymethodsforthedeterminationofmoisturecontentforcommercialweights.
【中国标准分类号】:W55
【国际标准分类号】:59_080_01
【页数】:22P.;A4
【正文语种】:英语