【英文标准名称】:Highmolecularmasscationic-activematter
【原文标准名称】:表面活性剂.洗涤剂-阳离子活性物质含量的测定.第1部分:高分子量阳极活性物质
【标准号】:BSENISO2871-1-1994
【标准状态】:作废
【国别】:英国
【发布日期】:1994-11-15
【实施或试行日期】:1994-11-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:容量分析;再现性;阳离子;清洗材料;洗涤剂;表面活性剂;干扰(化学);含量测定;化学分析和试验
【英文主题词】:Cationicactivematter;Chemicalanalysisandtesting;Detergents;Determinationofcontent;Materialstesting;Surfactants;Testing;Volumetricanalysis
【摘要】:ThispartofISO2871specifiesamethodforthedeterminationofhigh-molecular-masscationic-activematerialssuchasa)quaternaryammoniumcompoundsinwhichtwoofthealkylgroupseachcontain10ormorecarbonatoms,e.g.distearyl-dimethyl-ammoniumchlorides,orb)saltsofimidazolineor3-methylimidazolineinwhichlong-chainacylaminoethylandalkylgroupsaresubstitutedinthe1-and2-positions,respectively.Themethodisapplicabletosolidsortoaqueoussolutionsoftheactivematerial.Therelativemolecularmassofthecationic-activemattershallbeknownorpreviouslydeterminedifitscontentisexpressedasapercentagebymass.Themethodisnotapplicableifanionicsurface-activeagentsarepresent.NOTE—Lowrelativemolecularmasssulfonatesoftolueneandxylenepresentashydrotropesdonotinterferewhenpresentinconcentrationsuptoandincluding15%(m/m)withrespecttotheactivematerial.Athigherlevels,theirinfluenceshouldbeevaluatedineachparticularcase.Non-ionicsurfaceactiveagents,soap,ureaandthesaltsof(ethylenedinitrilo)tetraaceticaciddonotinterfere.Typicalinorganiccomponentsofdetergentformulations,suchassodiumchloride,sulfate,borate,tripolyphosphate,per-borate,silicate,etc.,donotinterfere,butbleachingagentsotherthanperborateshallbedestroyedbeforetheanalysis,andthesampleshallbecompletelysolubleinwater.ThispartofISO2871shouldbereadinconjunctionwithISO2271.
【中国标准分类号】:Y43
【国际标准分类号】:71_100_40
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:Stretcherwithrollerswithfixedundercarriage;dimensions,requirements,test
【原文标准名称】:带支架和滚轮的担架.尺寸.要求.检验
【标准号】:DIN13025T.2-1991
【标准状态】:作废
【国别】:
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【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
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