osha教材FlammableandCombustibleLiquids易燃和可燃液体

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1、FlammableandCombustibleLiquids1OSHAOfficeofTrainingandEducationIntroductionThetwoprimaryhazardsassociatedwithflammableandcombustibleliquidsareexplosionandfireSafehandlingandstorageofflammableliquidsrequirestheuseofapprovedequipmentandpracticesperOSHAstandards2OSHAOfficeofTraini

2、ngandEducationFlashPointFlashpointmeanstheminimumtemperatureatwhichaliquidgivesoffenoughvaportoformanignitablemixtureIngeneral,thelowertheflashpoint,thegreaterthehazardFlammableliquidshaveflashpointsbelow100oF,andaremoredangerousthancombustibleliquids,sincetheymaybeignitedatroo

3、mtemperatureCombustibleliquidshaveflashpointsatorabove100oFAlthoughcombustibleliquidshavehigherflashpointsthanflammableliquids,theycanposeseriousfireand/orexplosionhazardswhenheated3OSHAOfficeofTrainingandEducationClassesofFlammableandCombustibleLiquidsIIIAIIICIAIB20014010073F

4、lashPoint(oF)100BoilingPoint(oF)Combustible(FP>100oF)Flammable(FP<100oF)4OSHAOfficeofTrainingandEducationClassesofSomeFlammableLiquidsCLASSIACLASSIBCLASSICCommonNameFlashPoint(oF)EthylEther-49Gasoline-45MethylEthylKetone21Toluene40Xylene81-115Turpentine955OSHAOfficeofTrainingan

5、dEducationProgramComponentsControlofignitionsourcesProperstorageFirecontrolSafehandlingAgoodplanforsafeuseofflammableandcombustibleliquidscontainsatleastthesecomponents:6OSHAOfficeofTrainingandEducationSourcesofIgnitionOpenflamesSmokingStaticelectricityCuttingandweldingHotsurfa

6、cesElectricalandmechanicalsparksLightningMusttakeadequateprecautionstopreventignitionofflammablevapors.Somesourcesofignitioninclude:7OSHAOfficeofTrainingandEducationStaticElectricityGeneratedwhenafluidflowsthroughapipeorfromanopeningintoatankMainhazardsarefireandexplosionfromsp

7、arkscontainingenoughenergytoigniteflammablevaporsBondingorgroundingofflammableliquidcontainersisnecessarytopreventstaticelectricityfromcausingaspark8OSHAOfficeofTrainingandEducationBondingPhysicallyconnecttwoconductiveobjectstogetherwithabondwiretoeliminateadifferenceinstaticch

8、argepotentialbetweenthemMustprovideabondwirebetweencon