ASTM G12-2007 钢制管道涂层膜厚度的无损测量用标准试验方法

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【英文标准名称】:StandardTestMethodforNondestructiveMeasurementofFilmThicknessofPipelineCoatingsonSteel
【原文标准名称】:钢制管道涂层膜厚度的无损测量用标准试验方法
【标准号】:ASTMG12-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D01.48
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:涂层;材料;测量;无损检验;非金属;涂漆;涂料;管道;测试;厚度
【英文主题词】:coatings;film;nondestructive;nonmagnetic;pipeline;thickness
【摘要】:MeasurementsoffilmthicknessareanessentialpartofmostASTMtestmethodsrelatedtocoatingsonsteelpipe.Adequatethicknessisimportantforacoatingtofulfillitsfunctionofpreventingormitigatingcorrosionofsteelpipelines.Theaccuracyofthethicknessmeasurementsmaybeinfluencedbythedeformabilityofthecoating.Thistestmethodisnotapplicabletocoatingsthatwouldbereadilydeformableundertheforceexertedbytheprobeofthemeasuringinstrument.1.1Thistestmethoddescribesthenondestructivemeasurementofthethicknessofadry,nonmagneticcoatingappliedtotheexternalsurfaceofsteelpipe.Themethodisrecommendedforcoatingthicknessesupto6mm(0.240in.)andforanydiameterpipe,butnotsmallerthan10mm(0.5in.).Itdoesnotapplytoexcessivelysoftfilms.1.2ThevaluesstatedinSIunitstothreesignificantdecimalsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:87_040
【页数】:2P.;A4
【正文语种】: