【英文标准名称】:StandardTestMethodforEvaluatingStress-CorrosionCrackingofStainlessAlloyswithDifferentNickelContentinBoilingAcidifiedSodiumChlorideSolution
【原文标准名称】:沸腾酸化氯化钠溶液中不同镍合量不锈钢合金应力腐蚀裂纹评定的标准试验方法
【标准号】:ASTMG123-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:G01.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲样品;玻璃器皿;镍含量;不锈钢;钢;应力;应力腐蚀;试验
【英文主题词】:boilingacidifiedsodiumchloride(NaCl);glassware;histograms;stresscorrosioncracking;U-bendspecimens;UNSN
【摘要】:Thistestmethodisdesignedtocomparealloysandmaybeusedasonemethodofscreeningmaterialspriortoservice.Ingeneral,thistestmethodismoreusefulforstainlesssteelsthantheboilingmagnesiumchloridetestofPracticeG36.Theboilingmagnesiumchloridetestcracksmaterialswiththenickellevelsfoundinrelativelyresistantausteniticandduplexstainlesssteels,thusmakingcomparisonsandevaluationsformanyserviceenvironmentsdifficult.Thistestmethodisintendedtosimulatecrackinginwater,especiallycoolingwatersthatcontainchloride.Itisnotintendedtosimulatecrackingthatoccursathightemperatures(greaterthan200x00B0;Cor390x00B0;F)withchlorideorhydroxide.Note18212;Thedegreeofcrackingresistancefoundinfull-immersiontestsmaynotbeindicativeofthatforsomeserviceconditionscomprisingexposuretothewater-lineorinthevaporphasewherechloridesmayconcentrate.Correlationwithserviceexperienceshouldbeobtainedwhenpossible.Differentchlorideenvironmentsmayrankmaterialsinadifferentorder.Ininterlaboratorytesting,thistestmethodcrackedannealedUNSS30400andS31600butnotmoreresistantmaterials,suchasannealedduplexstainlesssteelsorhighernickelalloys,forexample,UNSN08020(forexample20Cb-34stainless).ThesemoreresistantmaterialsareexpectedtocrackwhenexposedtoPracticeG36asU-bends.MaterialswhichwithstandthissodiumchloridetestforalongerperiodthanUNSS30400orS31600maybecandidatesformoresevereserviceapplications.TherepeatabilityandreproducibilitydatafromSection12andAppendixX1mustbeconsideredpriortouse.Interlaboratoryvariationinresultsmaybeexpectedasoccurswithmanycorrosiontests.Acceptancecriteriaarenotpartofthistestmethodandifneededaretobenegotiatedbytheuserandtheproducer.1.1Thistestmethoddescribesaprocedureforconductingstress-corrosioncrackingtestsinanacidifiedboilingsodiumchloridesolution.Thistestmethodisperformedin25%(bymass)sodiumchlorideacidifiedtopH1.5withphosphoricacid.Thistestmethodisconcernedprimarilywiththetestsolutionandglassware,althoughaspecificstyleofU-bendtestspecimenissuggested.1.2ThistestmethodisdesignedtoprovidebettercorrelationwithchemicalprocessindustryexperienceforstainlesssteelsthanthemoresevereboilingmagnesiumchloridetestofPracticeG36.SomestainlesssteelswhichhaveprovidedsatisfactoryserviceinmanyenvironmentsreadilycrackinPracticeG36,buthavenotcrackedduringinterlaboratorytestingusingthissodiumchloridetestmethod.1.3Thisboilingsodiumchloridetestmethodwasusedinaninterlaboratorytestprogramtoevaluatewroughtstainlesssteels,includingduplex(ferrite-austenite)stainlessandanalloywithuptoabout33%nickel.Itmayalsobeemployedtoevaluatethesetypesofmaterialsinthecastorweldedconditions.1.4Thistestmethoddetectsmajoreffectsofcomposition,heattreatment,microstructure,andstressonthesusceptibilityofmaterialstochloridestress-corrosioncracking.Smalldifferencesbetweensamplessuchasheat-to-heatvariationsofthesamegradearenotlikelytobedetected.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandard......
【中国标准分类号】:H40
【国际标准分类号】:77_060
【页数】:10P.;A4
【正文语种】:


【英文标准名称】:Electricalsafetyinlowvoltagedistributionsystemsupto1000Va.c.and1500Vd.c.-Equipmentfortesting,measuringormonitoringofprotectivemeasures-Part13:hand-heldandhand-manipulatedcurrentclampsandsensorsformeasurementofleakag
【原文标准名称】:1000V交流和1500V直流低压配电系统电气安全性.保护措施试验,测量或监测用设备.第13部分:泄漏测量用手持和用手控制电流夹件和传感器
【标准号】:NFC42-198-13-2012
【标准状态】:现行
【国别】:法国
【发布日期】:2012-10-01
【实施或试行日期】:2012-10-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆夹;夹件;控制仪器;电流测量;定义;直流装置;电能分布;电气工程;电力设备;电性能;电性质和电现象;电气安全性;等级(质量);额定电压装置;干扰抑制;漏电;载电接线柱;低电压;低压电源;低压装置;磁场;测量;测量设备;测量仪器;测量技术;测量不确定性;监视装置;过电压保护装置;参数;工作性能;性能要求;性能测试;老虎钳;探针;防电击;保护措施;合格试验;测头;试验;电压
【英文主题词】:Cableclamps;Clamps;Controlinstruments;Currentmeasurement;Definitions;Directcurrentinstallations;Electricenergydistribution;Electricalengineering;Electricalinstallations;Electricalproperties;Electricalpropertiesandphenomena;Electricalsafety;Grades(quality);Installationsforratedvoltages;Interferencerejections;Leakagecurrent;Liveterminals;Lowvoltage;Lowvoltagemains;Low-voltageinstallations;Magneticfields;Measurement;Measuringequipment;Measuringinstruments;Measuringtechniques;Measuringuncertainty;Monitoringdevice;Overvoltageprotection;Parameters;Performanceinservice;Performancerequirements;Performancetesting;Pliers;Probes;Protectionagainstelectricshocks;Protectivemeasures;Qualificationtests;Sensors;Testing;Voltage
【摘要】:
【中国标准分类号】:K09
【国际标准分类号】:17_220_20;29_240_01
【页数】:23P;A4
【正文语种】:其他