NF P18-924-1998 混凝土结构修复和保护用产品和系统.试验方法.聚合物拉伸强度的测定
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【英文标准名称】:Productsandsystemsfortheprotectionandrepairofconcretestructures.Testmethods.Determinationoftensilestrengthdevelopmentforpolymers.
【原文标准名称】:混凝土结构修复和保护用产品和系统.试验方法.聚合物拉伸强度的测定
【标准号】:NFP18-924-1998
【标准状态】:现行
【国别】:法国
【发布日期】:1998-06-01
【实施或试行日期】:1998-06-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:保护系统;高聚物;实验室试验;混凝土结构;结构;凝固时间;表面防护;基准方法;抗拉强度;粘附拉伸强度;树脂;测量规程;试验;建筑;混凝土元件;混凝土;灰浆;保护(装置);检修
【英文主题词】:
【摘要】:
【中国标准分类号】:P25
【国际标准分类号】:91_080_40
【页数】:12P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodsforAbsorbanceofPolyethyleneDuetoMethylGroupsat1378cm
【原文标准名称】:含甲基团的聚乙烯对波长为1378cm-1光波吸收率的试验方法
【标准号】:ASTMD2238-1992(2004)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;甲基;保持能力;甲基化合物;塑料;聚乙烯
【英文主题词】:Fouriertransformspectroscopy;infraredspectroscopy;methylgroups;polyethylene;quantitativeanalysis
【摘要】:Wheninterpretedwiththeaidofappropriatecalibrationdata,eithertestmethodcanbeusedtocomparethetotalmethylcontentsofpolyethylenesmadebysimilarprocesses.Suchinformationcanbeinterpretedintermsofspecificalkylgroupswiththeaidofdataoninfraredabsorptionatcertainotherwavelengths(3).Note48212;Thebiasofdeterminationoftheconcentrationoftotalalkylgroupsdependsonknowingtheconcentrationsofmethylandethylbranchespresent,sincethesebrancheshaveanomalouslyhighabsorptivitiespergroupat1378cmx2212;1(7.25x03BC;m).Knowledgeoftotalmethylgroupsinpolyethylene,whencombinedwithdataonmolecularweightandonreactiveendgroupssuchasvinyl,canleadtoassignmentofend-groupstructuresandcanshedlightuponpolymerizationmechanisms.Dataontotalmethylgroupsinpolyethylenecanbecorrelatedqualitativelywithcertainpolymerpropertiessuchasmeltingpoint,density,stiffness,andothermechanicalpropertiesthatarecloselydependentonthedegreeofcrystallinityofthepolymer.Thesetestmethodsareespeciallysuitableforresearch.Theyhavenotbeentestedforuseinmanufacturingcontrol.1.1Thesetestmethodscovermeasurementbyinfraredabsorptionspectrophotometryofthe1378.4-cm1(7.255-m)bandinpolyethyleneduetomethylgroups.(1,2,4-7)Twotestmethodsarecovered:1.1.1TestMethodAusescompensationwithastandardsamplefilmorwedgeofknownmethylcontent.1.1.2TestMethodBusescompensationwithawedgeofpolymethyleneorapolyethyleneofknownlowmethylcontent.1.2ThesetestmethodsareapplicabletopolyethylenesofTypesI(density910to925kg/m3),II(density926to940),andIII(density941to965).Note18212;Fordeterminationofdensity,seeSpecificationsD1248.Note28212;IncasesofTypeIIIpolyethylenewithdensitiesgreaterthan0.950g/cm3,differentresultsareobtainedwiththetwotestmethods.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninbracketsareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection7.Note38212;ThereisnosimilarorequivalentISOstandardcoveringthesubjectmatterofthesetestmethods.
【中国标准分类号】:G32
【国际标准分类号】:83_080_20
【页数】:7P.;A4
【正文语种】:
【英文标准名称】:Specificationforelectricalconnectionsbetweentowingvehiclesandtrailerswith24Velectricalequipment:type24S(supplementary)
【原文标准名称】:牵引车和带有24V电气设备挂车之间的电气连接件规范:24S型(补充)
【标准号】:BSAU198-1984
【标准状态】:现行
【国别】:英国
【发布日期】:1984-01-31
【实施或试行日期】:1984-01-31
【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】:牵引属具;色码;电连接器;插座;受牵引车辆;插头;道路车辆零部件;铰接式运输车辆;挂车;电连接;电触点
【英文主题词】:Articulatedvehicles;Colourcodes;Electricconnectors;Electriccontacts;Electricplugs;Electricsockets;Electricalconnections;Roadvehiclecomponents;Towedroadvehicles;Towingattachments;Trailers
【摘要】:Requirementswhichwillpermit,bymeansofasocketandplug,typeS,interchangeabilityofsupplementaryelectricalconnectionsbetweentowingvehiclesandtowedvehiclesfittedwith24Velectricalequipment.
【中国标准分类号】:T76
【国际标准分类号】:43_040_10
【页数】:8P.;A4
【正文语种】:英语