Transcription
Compressed Gas Safety1Confidential
OSHA Regulations29 CFR 1910.101 ‐ Compressed Gases2Confidential
Hazards of Compressed Gas CylindersChemical HazardsPhysical Hazards3Confidential
Compressed GasesChemical Hazards Inerts Oxidizers Flammable Toxic4Confidential
Chemical Hazards of Compressed Gas Cylinders5Confidential
OxidizersOXYGEN & GAS MIXTURESOXYGENCONCENTRATION 23.5%6Confidential
OxidizersSUPPORTS COMBUSTION.NEVER ALLOW PETROLEUM‐BASED PRODUCTS TO COME INTOCONTACT WITH OXIDIZERS.SEPARATE FROM COMBUSTIBLES & FLAMMABLES INSTORAGE. 20’ DISTANCE, OR 5’ HIGH, 1/2 HOUR FIRE WALL7Confidential
OxygenOdorless, colorless gasNon‐flammable but is necessary for other material to burnHyperoxia8Confidential
Oxygen Cylinder9Confidential
InertsNITROGEN, ARGON,HELIUM, CO2Simple Asphyxiantswhich can displaceoxygenWill not support life10Confidential
InertsUSE IN WELL VENTILATED AREASDO NOT DISPOSE OR VENT OFF UNUSED QUANTITIES.MONITOR FOR OXYGEN 19.5% WHEN USED IN CONFINEDSPACE11Confidential
Inerts12Confidential
ArgonOdorless, colorless gasCan be stored with flammables or combustibles.13Confidential
FlammablesACTYLENE, PROPANE,PROPLYENEGas flammables inconcentration of 13% orless in air by volumeGas in flammable rangegreater than 12% byvolume14Confidential
FlammablesSTORE IN A WELL VENTILATED LOCATIONKEEP AWAY FROM HEAT SOURCESSTORE AWAY FROM OXIDIZERS AND COMBUSTIBLES15Confidential
Flammables16Confidential
AcetyleneSlight garlic‐like odorBurns easily in air 2.5% LEL ‐ 99% UELMay be explosive under high pressure Used at 15 psi or less17Confidential
ToxicsARSINE, NITROGENDIOXIDE, BORONTRICHLORIDEMaterial capable ofcausing death or seriousdebilitationIn absence of data onhuman toxicity tested onlaboratory animals has aLC50 value18Confidential
Toxics19Confidential
Cylinder IdentificationEvery Gas Cylinder or VesselMust Be Clearly Labeled 20Product NameDOT ID NumberDOT Hazard ClassManufacture Name & LocationPrecautionary StatementConfidential
Cylinder IdentificationNever rely on color of cylinder for identification.Color of cylinder may vary by manufacturer or owner.Always use product label to properly identify contents.21Confidential
Cylinder IdentificationNever modify, cover or remove a label.If cylinder label becomes illegible or detached Write product name with black marker. Mark as “contents unknown” if unknown. Contact manufacturer or distributor.22Confidential
Physical Hazards of Compressed Gas CylindersPressureWeightStabilityMechanical FailureMovement23Confidential
Recognize the HazardsPressureCauses Typical High Pressure Cylindershave 1800 – 3000 PSI Not regulating pressureConsequences Uncontrolled release Activation of relief device Container failure24Confidential
Recognize the HazardsWeightCauses This stuff is heavy Nitrogen 160 251 lbs Argon 450 1059 lbs25Confidential
Recognize the HazardWeightConsequences Smashed finger Back strain Broken foot Internal injuries Amputation26Confidential
Recognize the HazardStabilityCauses Naturally unstable Transitions Uneven surfaces Debris on floorsConsequences Falling cylinder Falling piles Liquid container tipping over27Confidential
Recognize the HazardsMechanical Failure Cylinder Valves Regulator28Confidential
Recognize the HazardsMechanical FailureCauses Over pressurizationBackflowFlashbackDamaged in transportationWorn threadsValve packing and seatsConsequences Flying debris Property damage Injury/Death29Confidential
Recognize the HazardMovementCauses Lose of control while rolling Trying to catch falling cylinders Miss alignment of cart hooks Failure to secure to cart30Confidential
Recognize the HazardsMovementConsequences Smashed hand Back strain Shoulder strain Broken foot Internal injuries Finger amputation31Confidential
Cylinder StorageStore in dry, ventilated location.Secure from falling or rolling.Protect from falling objects.Do not use as a door stop.Keep valve closed when not in use.32Confidential
Cylinder StorageStore with valve closed andcap on.Hand tighten caps.Do not store in extremetemperatures near flames ordirect heat.If ice and snow accumulateon cylinders, thaw at roomtemperature.Do not store near gasoline.33Confidential
Cylinder StorageFuel gas Always in upright position. 20 feet from oxygen & combustible material. Never place anything on top of cylinder.Oxygen 20 feet from flammable or combustible material.Separation can be 1 hour fire wall.Cylinders in use or connected can be storedtogether.34Confidential
Cylinder HandlingPersonal Protective Equipment35Confidential
Cylinder HandlingProtect valve, couplings, regulators, hose and apparatus fromoil & grease.Never drop or strike a cylinder.Do not lift cylinder by cap.Do not weld on lift attachments.36Confidential
Cylinder HandlingIf cylinder does not have a fixed valve handle, a non‐adjustable wrench must be with the cylinder while in use.Valve must be closed before moving a cylinder. Unless secured to a cart, regulator must be removed and cap inplace.37Confidential
Cylinder HandlingCheck container for bulges, dents, pits.Check container and valve for corrosion.Do not direct a gas stream directly at any person.Cylinders must be kept away from actual hot work area toprotect from sparks, slag, etc.Cylinders need a check valve to prevent backflow.38Confidential
Cylinders & RegulatorsNever attempt to repair or modify a regulator.Before attaching to cylinder Stand to one side of cylinder outlet Open valve slightly, then close Never use Teflon tape on a CGA fittingBefore removing from cylinder Close cylinder valve Release gas from regulator39Confidential
Cylinders & Valve LeaksNEVER USE A LEAKING CYLINDER.Attempt to stop leak by closing valve.Move outdoors & away from ignition sources, allow to slowlyempty.Tag or mark cylinder to warn others that it is leaking.40Confidential
Cylinders & FireMove cylinders away from fire if possible.Use water to keep cylinders cool.Inform emergency personnel of type & amount of gas on‐site.41Confidential
Additional Information SourcesProduct LabelSafety Data Sheetwww.Mathesongas.comEmergency Response Guidebook42Confidential
SummaryQuestions43Confidential
MONITOR FOR OXYGEN 19.5% WHEN USED IN CONFINED SPACE. 12 Confidential Inerts. 13 Confidential Argon Odorless, colorless gas Can be stored with flammables or combustibles. 14 Confidential Flammables ACTYLENE, PROPANE, PROPLYENE Gas flammables in concentration of 13% or less in air by volume Gas in flammable range greater than 12% by volume. 15 Confidential Flammables STORE IN A WELL .
