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COMPRESSED GASES

COMPRESSED GASES. Compressed Gases. Chemicals include oxygen, argon, nitrogen, helium, acetylene, hydrogen, nitrous oxide, carbon dioxide, ammonia, chlorine, etc. Compressed gases used in bulk systems or portable cylinders

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COMPRESSED GASES

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  1. COMPRESSED GASES

  2. Compressed Gases • Chemicals include oxygen, argon, nitrogen, helium, acetylene, hydrogen, nitrous oxide, carbon dioxide, ammonia, chlorine, etc. • Compressed gases used in bulk systems or portable cylinders • Industry uses include welding, cutting, operating tools, transferring liquids, blowing agents, laboratories, etc.

  3. Hazards of Compressed Gases • Explosion • Flammability • Corrosive • Toxicity • Reactivity • Air displacing • Check MSDS for specific hazards

  4. Markings or Labels • Name of the compressed gas • Hazards of the compressed gas • National Fire Protection Association (NFPA) labels • Department of Transportation (DOT) labels • Do not remove any labels

  5. Identification of Compressed Gas Identification of compressed gas

  6. FLAMMABLE GASES • ACETYLENE • PROPANE • HYDROGEN • ETHYLENE OXIDE • BUTANE

  7. NON-FLAMMABLE GASES • NITROGEN • ARGON • HELIUM • CARBON DIOXIDE • NITROUS OXIDE

  8. OXIDIZERS • OXYGEN • NITROUS OXIDE

  9. POISON GASES • SPECIALTY GASES • AMMONIA

  10. Manual Cylinder Handling • Close the valve and put on the cap • Do not “walk” cylinder by holding onto valve stem or cap • Never roll a cylinder on its side • Use a hand truck with a secure system

  11. Cylinder Storage Area • Dry, well ventilated, protected from weather • Away from combustibles, heat sources, electrical systems • No sparks, smoking, open flames • Oxygen separated from fuels • Upright, secured, valve cap on • Not in elevators, staircases, hallways, etc. • Sign requirements

  12. Cylinder Use • Upright and secure • Away from flames, sparks, electricity • Keep oil, grease, flammables off cylinders • Open valve by hand, if tools required don’t use the cylinder • Open valve slowly with hand to the side • Don’t tamper with safety devices

  13. Cylinder Inspection • CHECK FOR: • DENTS • CUTS OR GOUGES • CORROSION AND PITTING • BULGES • CRACKS AND FLAWS • HOLES AND TEARS • IF FOUND, DO NOT USE THAT CYLINDER SYSTEM

  14. General Safety Precautions • Only accept and use DOT approved cylinders • Do not drop cylinders • Protect cylinders from cuts and abrasions • Don’t use cylinders for unintended function such as a roller or support • Don’t tamper with safety valves • Caps on whenever not in use

  15. General Safety Precautions • READ ALL LABELS - IF NONE DO NOT ASSUME A CYLINDER CONTAINS A SPECIFIC GAS BASED ON COLOR • BE AWARE OF ALL HAZARDS ASSOCIATED WITH THE COMPRESSED GASES THAT YOU WILL BE USING • REVIEW MATERIAL SAFETY DATA SHEETS, (MSDS), FOR SPECIFIC GASES • A STANDARD 250 CUBIC FOOT CYLINDER PRESSURIZED TO 2500 PSIG CAN ATTAIN A SPEED OF 34 MPH IN ONE-TENTH OF A SECOND AFTER VENTING FROM A BROKEN CYLINDER CONNECTION

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