ASTM D7376-2007 卷状涂层金属湿竖管存储条件户外评定的标准实施规程

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【英文标准名称】:StandardPracticeforOutdoorEvaluationofWetStackStorageConditionsonCoil-CoatedMetals
【原文标准名称】:卷状涂层金属湿竖管存储条件户外评定的标准实施规程
【标准号】:ASTMD7376-2007
【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】:D01.53
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:涂覆的;卷状涂层;条件;腐蚀;评定;金属;户外;竖管;存储条件;湿的
【英文主题词】:blistering;coil-coated;corrosion;wetstack
【摘要】:Thispracticeprovidesforperiodictestingtocomparetherelativeperformanceofspecificcoatings,substrates,and/orpretreatmentsusedoncoil-coatedmetalforresistancetowetconditionsduringstorage.WhenperformedinsouthFlorida,thispracticegivesacceleratedcorrosionandblisteringresultsrelativetootherlocationswithinthecontinentalUnitedStates.Thispracticeallowscomparisonofdifferentcoatings,substrates,andpretreatmentswhentheyaretestedatthesametime.Theresultsmustbeconsideredrelativeanddonotindicateabsoluteperformance.Becausetheoutdoorenvironmentshowsyear-to-yearclimatological,seasonal,andgeographicvariation,theabsoluteamountofdegradationbasedoncorrosionandblisteringmayvary(seePracticeG7).Temperature,rain,andhumidityareimportantfactorsinwetstackcorrosion.Corrosionandblisteringwillacceleratewithincreasedtemperature.Thepreferredtestlocationissouthof27x00B0;NlatitudeinFlorida.Otherlocationsmaybeused,butdifferencesintemperatureandmoisturemustbeconsidered,andtheamountofcorrosionandblisteringareexpectedtovaryconsiderablywithclimate.TestsitesmusthavetheinstrumentationtomeasureandrecordambienttemperatureandrainfallasinPracticeG7.Thispracticeisnotmeanttosupportthefieldstorageofcoil-coatedmetalinanywayotherthanwhatisrecommendedbythemanufacturer.1.1Thisproceduredescribesthepracticefordeterminingrelativeperformanceofcoil-coatedmetalinanoutdoorwetstacktestingenvironment.1.2Thepurposeofthistestistoevaluaterelativewetstackcorrosionresistanceandblistering.Substrates,pretreatments,primers,topcoats,andbackersmaybeevaluated.1.3Thistestsimulatescoilorstackedbuildingpanelbundlestorageatajobsiteinwetoutdoorconditions.Theresultsfrompanelstestedduringthesametimeperiodmaybeusedtocompareproductsasanindicatorofactualfieldperformance.Environmentswithhighertemperatureandmoisturelevelsacceleratedegradation.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:77_060
【页数】:3P.;A4
【正文语种】: