ISO 6121-1988 表面活性剂工业烷烃磺酸盐用直接两相滴定法测定烷烃单磺酸盐含量
时间:2024-05-15 13:07:26 来源: 标准资料网 作者：标准资料网 阅读：8750
【英文标准名称】:Surfaceactiveagents;technicalalkanesulfonates;determinationofalkanemonosulfonatescontentbydirecttwo-phasetitration
【原文标准名称】:表面活性剂工业烷烃磺酸盐用直接两相滴定法测定烷烃单磺酸盐含量
【标准号】:ISO6121-1988
【标准状态】:现行
【国别】:国际
【发布日期】:1988-06
【实施或试行日期】:1988-06-01
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC91
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;定义;表面活性剂;化学分析和试验;容量分析;烷基化合物;样本;含量测定;化学分析;烷基磺酸盐;氯仿;纯度;洗涤剂
【英文主题词】:Alkylcompounds;Chemicalanalysisandtesting;Chloroform;Definitions;Detergents;Determinationofcontent;Purity;Samples;Surfactants;Testing;Volumetricanalysis
【摘要】:Thedeterminationiscarriedoutinaconsistingofanaqueousphaseandachloroformphase,inthepresenceofsodiumsulfate,bytitrationagainstastandardvolumetriccationic-activesolution(benzethoniumchloride),inthepresenceofanindicatorconsistingofamixtureofacationicdye(dimidiumbromide)andananionicdye(acidblue1).
【中国标准分类号】:G72
【国际标准分类号】:71_100_40
【页数】:3P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforDryAbrasionMarResistanceofHighGlossCoatings
【原文标准名称】:光泽涂层干磨损抗性的标准试验方法
【标准号】:ASTMD6037-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D01.23
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:abraser;abrasiontester;coatings;gloss;mar;Automotivecoatings/paints;Coatings;Dryabrasionresistance;High-glosssurfaces;Tabertester;Abrasionresistance
【摘要】:Coatings,particularlythehighglosscoatingsusedonautomobiles,boats,toys,etc.,aresubjecttoawidevarietyofconditions(forexample,wiping,cleaning,andexposure)thatcanmartheirsurface.Theabilityofthesecoatingstomaintaintheirappearanceisanimportantproductattribute.Thesetestmethodsprovideawaytoestimatetheabilityofhighglosscoatingstoresistmardamage.Thesetestmethodsdonotprovidefundamentalvalues.Howevertheyaresuitableforestimatingtheabilityofhighglosscoatingstoresistmar.Sincethesusceptibilityofcoatingstomarringvarieswidely,thenumberofcyclesthatareneededtocausex201C;relevantx201D;mardamagealsovaries.Usually,2to50cyclesaresufficient.1.1Twotestmethodsareincluded.TestMethodAusesadevicethatcontainsanabrasivewheel.TestMethodBusesadevicethatcontainsawheelthathasbeenfittedwithabrasivepaper.Eithermethodcanbeusedtoevaluatethedryabrasionmarresistanceofcoatingsappliedtoplanar,rigidsurfaces.Eachtestmethodprovidesgooddiscriminationbetweenhighlymarresistantcoatings.1.2Marresistanceisassessedbymeasuringtheglossofabradedandunabradedareas.Marresistanceisdirectlyrelatedtothecoating''sabilitytoretainglossinabradedareas.Note18212;Themarresistancevaluesobtainedbythesetestmethodshavenoabsolutesignificance.Theyshouldonlybeusedtoderiverelativeperformancerankingsfortestpanelsthathavebeenpreparedfromtheseriesofcoatingsthatarecurrentlybeingevaluated.Ifmarresistancevaluesarequotedbetweenlaboratories,itisessentialthatacommonstandardbemeasuredandthatthevaluesbecomparedtothatstandard.Eventhen,thevaluesshouldbeusedwithcaution.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_01
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:Radiofrequencycables0,8/4,8,coaxial,withsoliddielectric,flexibleZ=75
【原文标准名称】:固体绝缘柔性射频同轴电缆.0.8/4.8.Z=75欧姆
【标准号】:DIN47387-1971
【标准状态】:作废
【国别】:德国
【发布日期】:1971-07
【实施或试行日期】:
【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】:性能;老化;阻尼(波);同轴;高频;电缆
【英文主题词】:cables;ageing(materials);highfrequencies;coaxial;damping;performance
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:33_120_10
【页数】:2P.;A4
【正文语种】:德语