氧气清洗(AA级)检查和验收要求

GLOBALFABRICATIONANDERECTIONSPECIFICATIONOxygenClean(ClassAA)InspectionandAcceptanceRequirements氧气清洗（AA级）检查和验收要求4WPI-SW70003*Revision5November2001Page1of15RESPONSIBLEGROUP:MechanicalEngineering*FormerlyAmericaACL115F负责单位：机械工程部以前的编号：美国116F,117F570.52,570.53660.503EuropeA03欧洲DenotesRevision修订说明1.PURPOSE目的1.1Thisfabricationanderectionspecificationdefinescriteriafortheinspection,acceptanceofcleanlinessandshippingpreparationforpipingandequipmentclassifiedasOxygenClean(ClassAA).本制造和安装标准为氧气清洗（AA级）管道和设备的规定了清洗检查、验收和运输准备的标准。2.SCOPE范围2.1Thisspecificationappliestocleaningofequipment,piping,componentsandsystemsdesigned,owned,oroperatedbyAirProducts.本标准适用于APCI设计、拥有或操作的设备、管道、组件和系统的清洗。2.2Thisspecificationisusedalongwithacontractcleaningdocumentthatshowstherequiredcleanlinesslevelofthepipingandequipmentinvolved.本标准必须与一份规定有关管道和设备必要清洁度的合同文件一起使用。3.RELATEDDOCUMENTS相关文件3.1AirProductsEngineeringDocumentsAPCI工程文件660.500PictorialRepresentationofAllowableRust容许锈蚀的图片说明670.201ProcessPiping–AirSeparationUnits工艺管道——空气分离装置01.20.10SelectionofCleaningAgentsandMethodsforEquipmentUsedinOxygenService氧气操作中所用设备的清洗剂和清洗方法的选择3.2AmericanSocietyforTestingandMaterials(ASTM)美国试验和材料协会（ASTM）G93StandardPracticeforCleaningMethodsandCleanlinessLevelsforMaterialandEquipmentUsedinOxygen-EnrichedEnvironments关于富氧环境中使用的材料和设备的清洗方法和清洁度的标准实施办法4WPI-SW70003,Rev.5,Page2of153.3CompressedGasAssociation(CGA)压缩气体协会（CGA）G-4.1CleaningEquipmentforOxygenService氧气装置的清洗设备3.4EuropeanIndustrialGasesAssociation(EIGA)欧洲工业气体协会（EIGA）33/97Cleaningofequipmentforoxygenservice.氧气用途设备的清洗4WPI-SW70003,Rev.5,Page3of153.5InternationalOrganizationforStandardization(ISO)国际标准化组织（ISO）8501-1Preparationofsteelsubstratesbeforeapplicationofpaintsandrelatedproducts-visualassessmentofsurfacecleanliness(alsoSISSS055900,andASTMD2200,sametitle)油漆和相关产品喷刷前的钢构件的表面准备——表面清洁度的肉眼评估（SISSS055900和ASTMD2200使用相同的标题）4.GENERAL一般要求4.1Asurfacewillbeconsideredtobeoxygencleanifithasundergoneacleaningprocessthatcanbedemonstratedtoproducerepeatableresultsthatwillsatisfytheacceptancecriteriainthisspecification.如果表面清洗所用的清洗工艺的复检结果能够满足本文件中规定的验收标准，那么，这样的表面将被视为符合氧气级清洗要求。4.2Whenindividualequipmentiteminspectionsforoxygencleaningarenotfeasibleorpractical(e.g.,formassproducedorcommodityitemssuchascylinders,valves,orgaskets),AirProductsmightrequirethatthecleaningprocesssuccessfullypassanaudittotheacceptancecriteriainthisspecification.Auditsshallbeconductedbeforefirstuseandthenperiodicallyandwheneveracleaningprocessischanged.当对某单件设备进行氧气清洗检查不可行或不切实际时（例如钢瓶、阀门或垫片之类的大批量生产的物件或商品），APCI可能要求清洗工艺必须成功地通过本文件验收标准的审计。首次使用之前必须进行审计，然后定期审计，工艺改变时必须审计。4.3Partsofassembliesshallbecleanedseparatelybeforeassemblingorfabricatingrendersanysurfaceinaccessibleforcleaningorinspection.Pipeandfittingsshallbecleanedbeforestartingfabrication.在组装或制造任何不能以直接方式清洗或检查的表面之前，必须分别清洗组件的各部件。在开始制造之前，管道和配件必须清洗。4.4Thehandling,storage,anduseofallchemicalsshallbeaccordingtoguidelinescontainedintheirMaterialSafetyDataSheets(MSDS).Usedchemicalsshallbedisposedofinalawfulmanner.所有化学品的搬运、储存和使用都必须执行各自的物料安全数据表（MSDS）规定的指导原则。用后的化学品必须用合法的方式加以处理。4.5Foradditionalinformationoncleaningmethods,seeCGAG-4.1,EIGA33/97,andASTMG93.关于清洗方法的额外信息，请参见CGAG-4.1,EIGA33/97和ASTMG93。4.6Anycleaningagentshallbecompatiblewiththematerialsofconstructionoftheequipmentbeingcleaned.Chloride-freecleaningagentsshallbeusedforstainlesssteelequipment.任何清洗剂都要与被清洗设备的结构材料相匹配。不锈钢设备不得用含氯化物的清洗剂清洗。4.7IfDetergentCleaningisUsed如果使用洗涤剂清洗4.7.1AcceptabledetergentsarelistedinAirProducts01.20.10.AlternativesmustbeapprovedbyAirProductsinwriting.可接受的洗涤剂列在APCI01.20.10文件中。替代品必须得到APCI的书面批准。4.7.2Mechanicalinput(e.g.,agitation,scrubbing,pressurewashing)isusuallynecessaryfordetergentcleaningtobeeffective.机械操作（例如搅拌、擦洗、压力清洗等）通常是有效地进行洗涤剂清洗所必不可缺少的。4.7.3Sincedetergentresiduesarenotcompatiblewithoxygen,detergentwashingmustbefollowedbyeitherthoroughrinsingwithpotablewaterandthoroughdryingorbysolventcleaning.由于氧气操作不容许有洗涤剂残留物，洗涤剂清洗后，必须用饮用水进行彻底漂洗并彻底干燥或者用溶剂清洗。4WPI-SW70003,Rev.5,Page4of154.8IfSolventCleaningisUsed如果使用溶剂清洗4.8.1AcceptablesolventsarelistedinAirProducts01.20.10.AlternativesmustbeapprovedbyAirProductsinwriting.可接受的溶剂列在APCI01.20.10文件中。替代品必须得到APCI的书面批准。4.8.2Provenmethodsofsolventcleaningincludecompleteimmersion,wipingwithclean,lint-freeragssaturatedwithsolvent,partialfillingandrolling(forpiping),andvapordegreasing.公认的溶剂清洗方法包括完全浸没、擦洗、用蘸满饱和溶液的无绒布清洗、部分充装并滚洗（用于管道）和蒸汽去脂。4.8.3Cleanedpartsmustbefreeofresidualsolvent.Ifforanyreason(e.g.,partgeometry,solventused,cleaningmethod)thesolventdoesnotreadilyevaporatefromanysurfaceofanypart,thepartshallbepurgedwithnitrogen[dewpoint-40C(-40F)]untilalloftheresidualsolventhasevaporated.Ifheatisusedtohelpevaporatesolvents,precautionarymeasuresshallbetakentoavoiddamagetoseals,gaskets,andothersoftgoods.清洗过的部件必须无残留溶剂。无论何种原因（例如部件的几何形状、所用的溶剂、清洗方法）导致任何部件表面上的溶剂不易蒸发时，必须用氮气[露点-40C(-40F)]吹扫部件表面，直至所有的溶剂都被蒸发为止。如果用加热的方式来帮助溶剂蒸发，必须采用预防措施来避免伤害密封件、垫圈和其它软性部件。4WPI-SW70003,Rev.5,Page5of154.8.4Softgoodsthatcouldbeattackedbysolventsshallberemovedbeforecleaning,thenreinstalledaftercleaning.在清洗前，要把可能受溶剂腐蚀的软性部件拆卸下来，清洗结束后重新安装。4.9IfBlastCle