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© Business & Legal Reports, Inc Session Objectives You will be able to: Identify compressed gases by the labels Safely transport, handle, and store compressed gas cylinders Safely use cylinders, regulators, and gauges Know the specific hazards of some common compressed gases
© Business & Legal Reports, Inc Compressed Gases Can Be Deadly Employee killed when cylinder turned into a rocket because its valve was knocked off Employee suffocated after entering a space filled with nitrogen Facility damaged when acetylene cylinder heated up and exploded Employees eyebrows singed when lighting a gas barbecue grill
© Business & Legal Reports, Inc What Are Compressed Gases? Chemicals include: oxygen, argon, nitrogen, helium, acetylene, hydrogen, nitrous oxide, carbon dioxide, ammonia, chlorine Compressed gases used in bulk systems or portable cylinders Industry uses include welding, cutting, operating tools, transferring liquids, blowing agents, and laboratories
© Business & Legal Reports, Inc General Hazards Gases are under pressure Specific hazardous characteristic of each compressed gas Check MSDS for specific hazards
© Business & Legal Reports, Inc Compressed Gas Labels Name of the compressed gas Hazards of the compressed gas NFPA labels DOT labels Never remove labels
© Business & Legal Reports, Inc Bulk Systems Built and maintained by qualified personnel Filled by trained and qualified personnel Tank and piping properly labeled Tank system protected from damage
© Business & Legal Reports, Inc Labels, Bulk Systems– Any Questions? Any questions about the general hazards of compressed gases, labels, or bulk systems?
© Business & Legal Reports, Inc Transporting Cylinders Receiving/shipping cylinders requires DOT hazardous materials training Use lift trucks or hoists with proper lifting equipment only Never use a sling or electromagnet to hoist a cylinder Never lift a cylinder by the valve cap
© Business & Legal Reports, Inc Handling Cylinders Manually 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
© Business & Legal Reports, Inc Storing Cylinders Dry, well ventilated, protected from weather Away from combustibles, heat sources, electrical systems Not in elevators, staircases, hallways, etc. Oxygen separated from fuels
© Business & Legal Reports, Inc Storing Cylinders (cont.) Store cylinders upright Secure cylinders so they dont fall over Store cylinders with valve cap on No sparks, smoking, open flames Sign requirements
© Business & Legal Reports, Inc Using Cylinders Keep upright and secure Keep away from flames, sparks, electricity Keep oil, grease, flammables off cylinders Open valve by hand; if tools are required, dont use the cylinder Open valve slowly with hand to the side Dont tamper with safety devices
© Business & Legal Reports, Inc Regulators and Gauges Regulator and gauge rated for the pressure Regulator must be compatible with gas Do not exchange gauge from one gas to another Use thread sealant approved for application Wear eye protection Image Credit: National Center for Patient Safety
© Business & Legal Reports, Inc Leaking Cylinders Never try to repair Tag it, move it outdoors, and keep it away from heat or flame Call manufacturer or dealer
© Business & Legal Reports, Inc General Cylinder Safety Only accept and use DOT-approved cylinders Do not drop cylinders Protect cylinders from cuts and abrasions Dont use cylinders for unintended function such as a roller or support Dont tamper with safety valves Keep caps on whenever not in use
© Business & Legal Reports, Inc Compressed Gas CylindersAny Questions Any questions about how to safely handle, store, and use compressed gas cylinders?
© Business & Legal Reports, Inc LPG (Propane) Liquefied petroleum gas (LPG) includes propane, propylene, butane, butylene Liquid under pressure, released as a gas LPG containers must meet specific design criteria Cylinders have pressure relief valves Regulated by local fire department
© Business & Legal Reports, Inc LPG Hazards Flammable and reactive Propane is colorless and odorless Heavier than air, may build up and explode when ignited Adequate ventilation required
© Business & Legal Reports, Inc LPG Containers Marked as an approved container Capacity and design pressure Shut-off valve, pressure-relief valve, level gauge Never use container not approved for LPG, corroded or damaged, or missing accessory
© Business & Legal Reports, Inc LPG Handling Do not smoke near propane Fill or dispense outside Wear gloves and goggles Secure cylinder to forklift or hand truck Report damaged cylinders Check for leaks
© Business & Legal Reports, Inc Compressed Air Flying fragments penetrate eyes and skin Compressed air can penetrate skin, damage eyes and ears Use lowest pressure for the task Wear eye and skin protection Store air hose properly and inspect regularly
© Business & Legal Reports, Inc Oxygen Does not burn or explode by itself Supports combustion process Explosive with acetylene, hydrogen Never handle with oily hands or gloves
© Business & Legal Reports, Inc Acetylene Flammable Cylinder packed with porous material and solvent that holds the acetylene Once the valve is opened, the acetylene flows out in gaseous form Pressure relief valve using fusible metal that melts at about 212°F
© Business & Legal Reports, Inc Other Gases Gases such as argon and nitrogen are used to displace air Helium could cause rapid suffocation Gases such as ammonia and chlorine will cause large evacuations even for small leaks
© Business & Legal Reports, Inc Common Compressed GasesAny Questions? Any questions about the hazards of any of these common compressed gases?
© Business & Legal Reports, Inc Key Points to Remember Cylinders must always be stored and secured properly Handle and move cylinders safely Cylinders and bulk systems must be properly labeled Know the hazards of a compressed gas before using it
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Compressed Gases. Stories of Compressed Gases Employee killed when cylinder turned into a rocket because its valve was knocked off Employee suffocated.
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Compressed Gases. Compressed gas description Definition of a compressed gas – any gas, or mixture of gases, that is pressurized and contained in a cylinder.
Copyright Business & Legal Reports, Inc. BLR’s Safety Training Presentations Welding, Cutting and Brazing 29 CFR 1910, Subpart Q.
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Welding, Cutting, And Brazing. © Business & Legal Reports, Inc Session Objectives You will be able to: Identify major safety and health hazards.
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