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【英文标准名称】:StandardGuideforConductingCorrosionTestsinFieldApplications
【原文标准名称】:在工厂设备中进行腐蚀试验的标准指南
【标准号】:ASTMG4-2001(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:G01.14
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:corrosivetestspecimens;formsofcorrosion;generalcorrosionrate;in-plantexposures;localizedattack;specificsizeandsurfaceconditions;testduration;testracks;Condenserandheatexchangersystems;Corrosion;Deterioration;Dutchmanrack;Fie
【摘要】:Note18212;ThisguideisconsistentwithNACEStandardRP0497.Observationsanddataderivedfromcorrosiontestingareusedtodeterminetheaveragerateofcorrosionorothertypesofattack,orboth(seeTerminologyG15),thatoccurduringtheexposureinterval.Thedatamaybeusedaspartofanevaluationofcandidatematerialsofconstructionforuseinsimilarserviceorforreplacementmaterialsinexistingfacilities.Thedatadevelopedfromin-planttestsmayalsobeusedasguidelinestothebehaviorofexistingplantmaterialsforthepurposeofschedulingmaintenanceandrepairs.Corrosionratedataderivedfromasingleexposuregenerallydonotprovideinformationoncorrosionratechangeversustime.Corrosionratesmayincrease,decrease,orremainconstant,dependingonthenatureofthecorrosionproductsandtheeffectsofincubationtimerequiredattheonsetofpittingorcrevicecorrosion.1.1Thisguidecoversproceduresforconductingcorrosiontestsinplantequipmentorsystemsunderoperatingconditionstoevaluatethecorrosionresistanceofengineeringmaterials.Itdoesnotcoverelectrochemicalmethodsfordeterminingcorrosionrates.1.1.1Whileintendedprimarilyforimmersiontests,generalguidelinesprovidedcanbeapplicableforexposureoftestspecimensinplantatmospheres,providedthatplacementandorientationofthetestspecimensisnon-restrictivetoaircirculation.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Seealso10.4.2.
【中国标准分类号】:H25
【国际标准分类号】:77_060
【页数】:9P.;A4
【正文语种】:英语