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1、AmericanWaterWorksAssociationANSI/AWWAC501-92(RevisionofANSI/AWWAC501-87)RAWWASTANDARDFORCAST-IRONSLUICEGATESEffectivedate:Apr.1,1993.FirsteditionapprovedbyAWWABoardofDirectorsJune26,1941.ThiseditionapprovedJune18,1992.ApprovedbyAmericanNationalStand
2、ardInstituteInc.,Jan.22,1993.AMERICANWATERWORKSASSOCIATION6666WestQuincyAvenue,Denver,Colorado80235Copyright(C)1998AmericanWaterWorksAssociation,AllRightsReserved.AWWAStandardThisdocumentisanAmericanWaterWorksAssociation(AWWA)standard.Itisnotaspecifi
3、cation.AWWAstandardsdescribeminimumrequirementsanddonotcontainalloftheengineeringandadministrativeinformationnormallycontainedinspecifications.TheAWWAstandardsusuallycon-tainoptionsthatmustbeevaluatedbytheuserofthestandard.Untileachoptionalfeatureiss
4、pecifiedbytheuser,theproductorserviceisnotfullydefined.AWWApublicationofastandarddoesnotconstituteendorsementofanyproductorproducttype,nordoesAWWAtest,certify,orapproveanyproduct.TheuseofAWWAstandardsisentirelyvoluntary.AWWAstandardsareintendedtorepr
5、esentaconsensusofthewatersupplyindustrythattheproductdescribedwillprovidesatisfactoryservice.WhenAWWArevisesorwithdrawsthisstandard,anofficialnoticeofactionwillbeplacedonthefirstpageoftheclassifiedadvertisingsectionofJournalAWWA.Theactionbecomeseffec
6、tiveonthefirstdayofthemonthfollowingthemonthofJournalAWWApubli-cationoftheofficialnotice.AmericanNationalStandardAnAmericanNationalStandardimpliesaconsensusofthosesubstantiallyconcernedwithitsscopeandprovisions.AnAmericanNationalStandardisintendedasa
7、guidetoaidthemanufacturer,theconsumer,andthegeneralpublic.TheexistenceofanAmericanNationalStandarddoesnotinanyrespectprecludeanyone,whetherthatpersonhasapprovedthestandardornot,frommanufactur-ing,marketing,purchasing,orusingproducts,processes,orproce
8、duresnotconformingtothestand-ard.AmericanNationalStandardsaresubjecttoperiodicreview,andusersarecautionedtoobtainthelatesteditions.ProducersofgoodsmadeinconformitywithanAmericanNationalStandardareencouragedtostateontheirownresponsibilityinadvertising