Electricalapparatusforexplosivegasatmospheres–Part0:GeneralrequirementsReferencenumberIEC60079-0:2004(E)INTERNATIONALSTANDARDIEC60079-0Fourthedition2004-01ThisEnglish-languageversionisderivedfromtheoriginalbilingualpublicationbyleavingoutallFrench-languagepages.MissingpagenumberscorrespondtotheFrench-languagepages.CopyrightInternationalElectrotechnicalCommissionProvidedbyIHSunderlicensewithIECDocumentprovidedbyIHSLicensee=FluorCorpnoFPPPVperadministrator/usenewu/2110503106,03/04/200423:37:49MSTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyGroupat303-397-2295.--`,````,,,```,,,,`,,,``,,,,,-`-`,,`,,`,`,,`---PublicationnumberingAsfrom1January1997allIECpublicationsareissuedwithadesignationinthe60000series.Forexample,IEC34-1isnowreferredtoasIEC60034-1.ConsolidatededitionsTheIECisnowpublishingconsolidatedversionsofitspublications.Forexample,editionnumbers1.0,1.1and1.2refer,respectively,tothebasepublication,thebasepublicationincorporatingamendment1andthebasepublicationincorporatingamendments1and2.FurtherinformationonIECpublicationsThetechnicalcontentofIECpublicationsiskeptunderconstantreviewbytheIEC,thusensuringthatthecontentreflectscurrenttechnology.Informationrelatingtothispublication,includingitsvalidity,isavailableintheIECCatalogueofpublications(seebelow)inadditiontoneweditions,amendmentsandcorrigenda.Informationonthesubjectsunderconsiderationandworkinprogressundertakenbythetechnicalcommitteewhichhaspreparedthispublication,aswellasthelistofpublicationsissued,isalsoavailablefromthefollowing:•IECWebSite(www.iec.ch)•CatalogueofIECpublicationsTheon-linecatalogueontheIECwebsite(www.iec.ch/searchpub)enablesyoutosearchbyavarietyofcriteriaincludingtextsearches,technicalcommitteesanddateofpublication.On-lineinformationisalsoavailableonrecentlyissuedpublications,withdrawnandreplacedpublications,aswellascorrigenda.•IECJustPublishedThissummaryofrecentlyissuedpublications(www.iec.ch/online_news/justpub)isalsoavailablebyemail.PleasecontacttheCustomerServiceCen...