SafeOperatingProcedure(Revised7/09)LIQUIFIEDPETROLEUMGAS(LPG)PORTABLECYLINDERS______________________________________________________________________(Forassistance,pleasecontactEHSat(402)472-4925,orvisitourwebsiteathttp://ehs.unl.edu/)LPGincludespropane,butane,andbutylenesusedforheating,cooking,andfuel.ThepurposeofthisSOPistoprovidesafepracticesforuseandstorageofportableLPGcylinders.ThisSOPisbasedonNFPArequirements,asadministeredbytheStateFireMarshal’sOffice.StorageRequirementsInsideofBuilding•ResearchLabsAtotalof20poundsmaximumisallowedpereachresearchlab.Thisincludesuseandstorage.•TeachingLabs/DiningServicesandOtherRoomsOccupiedbythePublicIndividualcylindersarenottoexceed2.5poundsinvolumenorexceed20poundstotalinaroom.LPGcanonlybeusedfordemonstrationpurposesaspartofateachinglab;howeverthecylindersmaynotbestoredintheroom.•GeneralUseClassroomsLPgasisnotallowedforuseorstorageingeneraluseclassrooms•DiningRoomsandCommercialFoodServiceNomorethantwo10ouncenon-refillablebutanecylindersinuseperapplianceandnotmorethan24cylindersinstoragearepermitted.•Shops/Warehouses/andNonpublicBuildingsAmaximumtotalof40poundsisallowedforstorageoruseinshops,warehouses,andagriculturalbuildings.•OtherAnycylinderconnectedtoaforkliftisexcludedfromthestoragerequirements.StorageOutsideofBuilding•Extracylindersthatarenotallowedinsideabuildingmustbestoredoutsideinaventedandlockedcage,orotherapproveddesign.Shadingispreferred.•Thecagemustbeatleast5’fromanybuildingopening,atleast10’fromweedsandothercombustibles,andmustbeprotectedfrompossiblevehicledamage,theft,orpilfering.•Storagemustbeatleast20footfromanyvehicular,equipment(tractor),orothertypefueldispenser.•Aplacardshouldbeattachedtothecagetoindicatenosmoking,flame,ormatcheswithin25ft.ofthecage.(Created3/04;Revised4/05)UNLEnvironmentalHealthandSafety·(402)472-4925·http://ehs.unl.edu(Created3/04;Revised4/05)UNLEnvironmentalHealthandSafety·(402)472-4925·http://ehs.unl.eduGeneralStorageProcedures•LPgascylinderstorageshouldbelocatedtominimizeexposuretoexcessivewarmtemperatures,physicaldamage,ortampering.Excessivecoldisnotaconcern.•Tankvalvesshouldbeclosedtight,withasafetypluginserted,andremainintheoutletuntilplacedintoservicetokeepthethreadsclean.•Storageinawellventilatedareaabovegroundisrequired,asLPgasisheavierthanairandwillaccumulateinbasementsandlowareas.•Cylindersstoredinbuildingsshouldnotbelocatednearexits,stairways,orareasintendedforsafeegress.•Screw-ontypecapsorcollarsmustbesecurelyinplaceonallcontainersstoredwhetherfull,partialfull,orempty.Cylinderoutletvalvesmustbeclosedandpluggedorcapped.•Cylindershavinggreaterthanonepoundcapacityshouldbepositionedintheup-rightpositionsothatthepressurereliefvalveisindirectcontactwiththevaporspaceofthecylinder.Ifacylinderhasbeenstoredortransportedonitsside,standitupverticallyforatleastonehourbeforeusing.•Storagelocationsshouldbeequippedwithatleastoneapproved,dry-chemical,B-Cportablefireextinguisherhavingaminimumcapacityof10poundsandlocatednomorethan50feetfromthestoragelocation.GeneralUseRequirements•LPcontainersorcylindersmustnotbefilledinsideUniversitybuildings.•LPcylindersmustmeetU.S.DepartmentofTransportation(DOT)Specifications.•Whentransportingsmallcylindersbypassengervehicle,cylindersmustbesecuredinanuprightpositionandalloutletsmustbepluggedorcapped.Carriercompartmentsmustbeventilatedandsealedfromthevehiclesinterior.Amaximumof90lbs.ofpropanecanbecarriedbypassengertruck.•LPgasusedforrepairandmaintenancepurposesthatusesanopenflameoutsideofdesignatedhotworkareasmustfollowtheEHSSOP,HotWorkPermitOperations.•LPGwillcausenaturalrubberandsomeplasticstodeteriorate.UseonlyhosesandotherequipmentspecificallydesignedforLPG.Hosesandthewasher/gasketofthepressureregulatorshouldbeinspectedregularlyandreplacedifshowingsignsofwearordeterioration.•Alwayscheckcylinderconnectsforleakswithabubblesolution.•Neversmokewhileconnectingtheequipmentanddonotcheckforleakswithaflame.•Shutthecylindervalvewhenthecylinderisnotinuse.
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