ASTM F1588-1996(2007) 恒定拉伸载荷连接试验的标准试验方法
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【英文标准名称】:StandardTestMethodforConstantTensileLoadJointTest(CTLJT)
【原文标准名称】:恒定拉伸载荷连接试验的标准试验方法
【标准号】:ASTMF1588-1996(2007)
【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】:F17.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:constanttensileload;mechanicalfitting;mechanicaljoint;polyethylenegaspipe;pull-out;tensiletest;Constanttensileloadjointtest(CTLJT);CTLJT(constanttensileloadjointtest);Mechanicalfittings;Mechanicaljointcategory1/3;Polyeth
【摘要】:Thistestmethodwasdesignedtobeusedtovalidatethelong-termresistancetopulloutofjointsdesignedforuseinplasticnaturalgaspipingsystems.Thistestmethodisusedinadditiontotheshort-termtestsrequiredbyOPSPart192.283b,Title49.Informalversionsofthistestmethodareusedbymanufacturersandutilitiestodemonstratethatajointisresistanttotheeffectsoflong-termcreepandmeetstherequirementsforclassificationasaCategory1oraCategory3jointinaccordancewithSpecificationD2513.Thistestmethodmayalsobeapplicableforthedeterminationoftheeffectsofasustainedaxialloadonjointsorothercomponentsofplasticpipingsystemsdesignedforotherapplications.Testparametersandtheinternalpressurizingfluid,ifany,shouldbelistedinthereferencingdocument.Documentsthatreferencethistestmethodforproductsotherthanjointsshallspecifytestconditionsandperformancerequirements.Ingeneral,suchproductspassthistestiftheymaintaintheirstructuralintegrity,donotleak,andperformtospecificationduringandafterthetest.1.1Theconstanttensileloadjointtest(CTLJT)isdesignedtodemonstratethatajointinaplasticpipingsystemisresistanttotheeffectsoflong-termcreep.1.1.1Thejointissubjectedtoaninternalpressureatleastequaltoitsoperatingpressureandasustainedaxialtensileloadforaspecifiedtimeperiod,usually1000h.Thejointshallnotleak,normaythepipecompletelypulloutforthetestduration.Thetotalaxialstressissetbythereferencingdocument.1.1.2SometypicalconditionsfortestingofjointsonpolyethylenepipearedescribedinAppendixX1.1.2Thistestisusuallyperformedat73x00B0;F(22.8x00B0;C).1.3TheCTLJTwasdevelopedtodemonstratethelong-termresistancetopulloutofmechanicaljointsonpolyethylenegaspipe.TheCTLJThasalsobeensuccessfullyappliedtotheevaluationofothercomponentsofplasticpipingsystems.TheseapplicationsarediscussedinAppendixX1.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:23_040_20
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part5-20:Applicationlayerservicedefinition-Type20elements(IEC61158-5-20:2007);EnglishversionEN61158-5-20:2008,onlyonCD-ROM
【原文标准名称】:工业通讯网络.现场总线规范.第5-20部分:应用层设备定义.20型元件.仅为CD-ROM
【标准号】:DINEN61158-5-20-2008
【标准状态】:作废
【国别】:德国
【发布日期】:2008-09
【实施或试行日期】:2008-09-01
【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】:应用层;应用;总线系统;总线;电路网络;通信;计算机应用;计算机控制;控制;控制设备;控制系统;控制工艺学;数据总线;数据通信;数据交换;数据传输线;数据连接系统;数据网络;数据处理;数据设备;数据传送;数据传输控制规程;定义;数字的;数字数据;数字工程;电子数据处理;电气工程;电子仪器;电子系统;英语;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口(数据处理);开放系统互连;操作技术;OSI;物理层;过程控制工程;设备;规范;规范(验收);传输媒质
【英文主题词】:Applicationlayer;Applications;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Computerapplications;Computerizedcontrol;Control;Controlequipment;Controlsystems;Controltechnology;Databus;Datacommunication;Dataexchange;Dataline;Datalinksystem;Datanetwork;Dataprocessing;Dataservices;Datatransfer;Datatransmissioncontrolprocedures;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;Physicallayers;Processcontrolengineering;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:ThispartofIEC61158providescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType20fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisibleserviceprovidedbythedifferentTypesofthefieldbusApplicationLayerintermsofa)anabstractmodelfordefiningapplicationresources(objects)capableofbeingmanipulatedbyusersviatheuseoftheFALservice,b)theprimitiveactionsandeventsoftheservice;c)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andd)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.Thepurposeofthisstandardistodefinetheservicesprovidedto1)theFALuserattheboundarybetweentheuserandtheApplicationLayeroftheFieldbusReferenceModel,and2)SystemsManagementattheboundarybetweentheApplicationLayerandSystemsManagementoftheFieldbusReferenceModel.ThisstandardspecifiesthestructureandservicesoftheIECfieldbusApplicationLayer,inconformancewiththeOSIBasicReferenceModel(ISO/IEC7498)andtheOSIApplicationLayerStructure(ISO/IEC9545).Theprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualapplicationlayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofapplicationlayerprotocolsfortime-criticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ItisthislatterobjectivewhichgivesrisetothediversityofservicesstandardizedasthevarioustypesofIEC61158.ThisspecificationmaybeusedasthebasisforformalApplicationProgramming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.
【中国标准分类号】:P76;N18
【国际标准分类号】:35_100_70;35_160
【页数】:50P.;A4
【正文语种】:英语
【英文标准名称】:Electriccables-Lowvoltageenergycablesofratedvoltagesuptoandincluding450/750V(U/U)-Part2-31:Cablesforgeneralapplications-Singlecorenon-sheathedcableswiththermoplasticPVCinsulation;GermanversionEN50525-2-31:2011
【原文标准名称】:电缆.额定电压为450/750V(U/U)及以下的低压能源电缆.第2-31部分:一般应用电缆.热塑性PVC绝缘单股非屏蔽电缆.德文版EN50525-2-31-2011
【标准号】:EN50525-2-31-2011
【标准状态】:现行
【国别】:
【发布日期】:2012-01
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Cables;Corearrangement;Dimensions;Elastomers;Electriccables;Electricalcords;Electricalengineering;Electricalinsulatingmaterials;Electricaltesting;Flexible;Flexiblecables;Hoseassemblies;Insulatedcables;Insulatedcords;Insulatingcoverings;Insulations;Lowvoltage;Plasticinsulations;Polyvinylchloride;Polyvinylchlorideinsulation;Powerlines;PVCinsulations;Ratedvoltage;Singlewire;Testing;Thermoplasticpolymers;Types;Wiringcables
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_035_20;29_060_20
【页数】:18P;A4
【正文语种】:英语