【英文标准名称】:StandardPracticeforRepairofDamagedandUncoatedAreasofHot-DipGalvanizedCoatings
【原文标准名称】:热浸镀锌涂层局部未涂覆面积和损害的修补用标准惯例
【标准号】:ASTMA780/A780M-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:A05.13
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:涂层&x2014;锌;镀锌涂层修补;镀锌涂层;接触;锌涂层修补;锌涂层;热浸镀锌涂层;修补;未涂覆面积(镀锌涂层);蜡涂层
【英文主题词】:coatings&x2014;zinc;galvanizedcoatingrepair;galvanizedcoatings;touch-up;zinccoatingrepair;zinccoatings;Hot-dip(galvanized)coatings;Repairing;Uncoatedareas(ofgalvanizedcoatings);Waxcoatings
【摘要】:1.1Thispracticedescribesmethodsthatmaybeusedtorepairdamagedhot-dipgalvanizedcoatingsonhardware,structuralshapes,andotherproductsfabricatedpriortohot-dipgalvanizing,anduncoatedareasremainingafterinitialhot-dipgalvanizing.Thedamagemaybetheresultofweldingorcutting(flame),inwhichcasethecoatingwillbedamagedpredominantlybyburning.Thispracticecanalsobeusedtorepairhot-dipgalvanizedcoatingsdamagedbyexcessivelyroughhandlingduringshippingorerection.Requirementsconcerningtherenovationofuncoatedareasremainingafterinitialhot-dipgalvanizingarecontainedwithintheapplicablematerialspecification.1.2Thispracticedescribestheuseoflowmeltingpointzincalloyrepairrodsorpowdersmadespecificallyforthispurpose,theuseofpaintscontainingzincdust,andtheuseofsprayedzinc(metallizing).1.3Theextentofrepairshallbelimitedtoanareamutuallyagreeabletothecontractingparties.Similarly,contractingpartiesshallagreetotherepairmethodtobeused.1.4Thisspecificationisapplicabletoordersineitherinch-poundunits(asA780)orinSIunits(asA780M).Inch-poundunitsandSIunitsarenotnecessarilyexactequivalents.Withinthetextofthisspecificationandwhereappropriate,SIunitsareshowninbrackets.Eachsystemshallbeusedindependentlyoftheotherwithoutcombiningvaluesinanyway.1.5Thisstandarddoesnotpurporttoaddressthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:4P.;A4
【正文语种】: