作者:标准资料网 时间:2024-05-10 21:47:16   浏览:9012   来源:标准资料网

【英文标准名称】:StandardSpecificationforCoatingsofCadmiumMechanicallyDeposited
【原文标准名称】:镉机械沉积镀层的标准规范
【标准号】:ASTMB696-2000(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:B08.08.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:Cadmiummetals/alloys--specifications;Cadmiummetals(coating/plating)--specifications;Ironproducts(general)--mechanicallydepositedcoatings;Mechanicallydepositedcoatings--specifications;Steel--mechanicallydepositedcoatings
【摘要】:1.1Thisspecificationcoverstherequirementsforacoatingofcadmiummechanicallydepositedonmetalproducts.Thecoatingisprovidedinvariousthicknessesuptoandincluding12x03BC;m.1.2Mechanicaldepositiongreatlyreducestheriskofhydrogenembrittlementandissuitableforcoatingboresandrecessesinmanypartsthatcannotbeconvenientlyelectroplated(seeAppendixX3).1.3Cadmiumcoatingsareusuallyappliedtoprovideengineeringpropertiesandcorrosionresistance.Theperformanceofacadmiumcoatingdependslargelyonitsthicknessandthekindofenvironmenttowhichitisexposed.Withoutproofofsatisfactorycorrelation,acceleratedtestssuchasthesaltspray(fog)testcannotbereliedupontopredictperformanceinotherenvironments,norwilltheseserveascomparativemeasuresofthecorrosionresistanceaffordedbycoatingsofdifferentmetals.Thus,althoughthereisamarkedsuperiorityofcadmiumcoatingsoverzinccoatingsofequalthicknessinthesaltspraytest,thisisoftennotthecaseunderconditionsofuse,sothatfurthertestingintheserviceenvironmentshouldbeconducted.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,see1.5and1.6.1.5Warning8212;Cadmiumistoxicandmustnotbeusedinacoatingforarticlesthatcancomeintocontactwithfoodorbeverages,orfordentalorotherequipmentthatcanbeinsertedintothemouth.Consultappropriateagenciesforregulationsinthisconnection.1.6Warning8212;Becauseofthetoxicityofcadmiumvaporsandcadmiumoxidefumes,cadmium-coatedarticlesmustnotbeusedattemperaturesof320x00B0;Candabove.Theymustnotbewelded,spot-welded,soldered,orotherwisestronglyheatedwithoutadequateventilationthatwillefficientlyremovealltoxicfumes.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:6P.;A4
【正文语种】:英语