Designation:D4276−02(Reapproved2020)StandardPracticeforConfinedAreaEntry1ThisstandardisissuedunderthefixeddesignationD4276;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversrecognizedproceduresnecessarytoprotectthehealthandsafetyofworkersrequiredtoenterconfinedspaces.Theseproceduresareparticularlyapplicabletoentryintotheconfinedareasassociatedwiththeuseofhalogenatedorganicsolvents.1.2Confinedareasaddressedinthispracticeinclude,butarenotlimitedto:vapordegreasers,coldcleaningtanks,storagevessels,tankcarsandtrucks,vantrailers,shipsorbarges,pitsorsumps,andunventilatedrooms.1.3Thispracticedoesnotnecessarilyaddressentryintoallconfinedspacesnordoesitaddressthedecisionstrategyinvolvedinrequiringsuchentry.1.4Althoughthispracticedescribesspecificsafetystepstobetakenforentryintoconfinedspaces,itisnotintendedtoprecludetheuseofanyadditionalmeasuresthatmaybedeemednecessaryforaparticularsituation.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1CodeofFederalRegulations:2CFR1910.146U.S.DepartmentofLabor,OccupationalSafetyandHealthStandards,Permit-RequiredConfinedSpaces3.SummaryofPractice3.1Confinedareaentryreferstotheenteringofanytank,vessel,sump,pit,duct,tankcar,tanktruck,vantrailer,orenclosedspaceinwhichtherehasbeen,ormayhavebeenchemicals...
