【英文标准名称】:StandardTestMethodforReliabilityofGlassCoatingsonGlassedSteelReactionEquipmentbyHighVoltage
【原文标准名称】:用高压法测试钢制反应设备玻璃涂层可靠性的标准试验方法
【标准号】:ASTMC537-1987(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1987
【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】:B08.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:glasscoatedsteelequipment;glasscoating;highvoltagetest;porcelainenamel;reliabilityofcoatings;Coatingcontinuity;Corrosion--electrodepositedcoatings;Corrosion-resistantcoatings;Defects--coatings;Discontinuities--rock;Electricalmeasure
【摘要】:Thewidespreaduseofglassed-steelequipmentinhighlycorrosivechemicalprocesseshasmadeitnecessarytodetectweakspotsinthecoatingandrepairthembeforecatastrophicfailureoccursinservice.Thistestisintendedtodetectdiscontinuitiesandthinareasinaglasscoatingonmetaltoensurethatthecoatingisdefectfreeandhassufficientthicknesstowithstandtheprescribedserviceconditions.Atestvoltagemaybeselectedatanydesiredvalueupto20000V,thusmakingthetestapplicabletoawiderangeofthicknessrequirements.When,becauseofbubblesordefects,thethicknessofglassatanyspotislessthanenoughtowithstandtheappliedvoltage,apunctureresultswithanaccompanyingindicationofadefect.Remedialactionisthenrequiredtorepairthedefectbeforetheequipmentcanbeusedforcorrosiveservice.(Whensuchdefectsarefoundbeforetheequipmentleavesthemanufacturer''splantanotherapplicationofglasscanusuallybeappliedandfiredtobecomeanintegralpartofthecoating.)1.1Thistestmethodcoversthedeterminationofthereliabilityofglasscoatingonmetalandisintendedforusebymanufacturersofequipmentthatisdesignedtowithstandhighlycorrosiveconditionswhereafailureofthecoatinginservicewouldcauseextremedamagetotheexposedmetal.Itsuseoutsidethemanufacturer''splantisdiscouragedbecauseimproperorindiscriminatetestingcancausepuncturesthataredifficulttorepairwithoutreturningtheequipmenttothemanufacturer''splant.Thistestmethoddetectsnotonlyexistingdiscontinuitiesintheglasscoating,butalsoareaswheretheglassmaybethinenoughtobelikelytoresultinprematurefailureinservice.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection7.
【中国标准分类号】:A29
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:英语