11006115 copyright business & legal reports, inc. blrs safety training presentations compressed...
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11006115 Copyright Business & Legal Reports, Inc.
BLR’sSafety Training Presentations
Compressed Gases
11006115 Copyright Business & Legal Reports, Inc.
Stories of Compressed Gases
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
Eyebrows singed when lighting a gas BBQ
11006115 Copyright Business & Legal Reports, Inc.
Training Goals
Compressed Gases and Cylinders in General Specific Compressed Gases Quiz
11006115 Copyright Business & Legal Reports, Inc.
Basics of 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.
11006115 Copyright Business & Legal Reports, Inc.
Hazards of Compressed Gases
Explosion Flammability Corrosive Toxicity Reactivity Air displacing Check MSDS for specific hazards
11006115 Copyright Business & Legal Reports, Inc.
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
11006115 Copyright 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
11006115 Copyright Business & Legal Reports, Inc.
Cylinder Transportation
Receiving/shipping cylinders requires DOT Hazardous Materials training
Use lift trucks or hoists only with proper lifting equipment
Never use a sling or electromagnet to hoist a cylinder
Never lift a cylinder by the valve cap
11006115 Copyright Business & Legal Reports, Inc.
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
11006115 Copyright Business & Legal Reports, Inc.
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
11006115 Copyright Business & Legal Reports, Inc.
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
11006115 Copyright Business & Legal Reports, Inc.
Regulators and Gauges
Regulator and gauge rated for the pressure in the gas system
Regulator must be compatible with the gas Do not exchange gauge from one gas to
another Thread sealant recommended by
manufacturer for application Wear eye protection when operating regulator
11006115 Copyright 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
11006115 Copyright Business & Legal Reports, Inc.
General Cylinder Safety
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
11006115 Copyright Business & Legal Reports, Inc.
Goals of Compressed Gases
Compressed Gases and Cylinders in General Specific Compressed Gases Quiz
11006115 Copyright Business & Legal Reports, Inc.
LPG (Propane)
Liquid petroleum gases (LPG) include 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
11006115 Copyright Business & Legal Reports, Inc.
LPG Hazards
Flammable and reactive Gases are colorless and odorless Heavier than air, may build up
and explode unexpectedly Adequate ventilation required
11006115 Copyright 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, missing accessory
11006115 Copyright Business & Legal Reports, Inc.
LPG Handling
No smoking, use sparkless tools
Fill or dispense outside or in well-ventilated area—wear PPE such as glove and goggles
Secure to forklift or other vehicle
Report damaged cylinders Leak detection
11006115 Copyright Business & Legal Reports, Inc.
Compressed Air
Flying fragments penetrate eyes or skin Compressed air can penetrate skin, damage
eyes or ears Use lowest pressure for the job Wear eye and skin protection Store air hose properly and inspect regularly
11006115 Copyright 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
11006115 Copyright 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
11006115 Copyright Business & Legal Reports, Inc.
Miscellaneous Gases
Gases such as argon and nitrogen are used to displace air
Helium could cause rapid suffocation Gases like ammonia and chlorine will
cause large evacuations even for small leaks
11006115 Copyright Business & Legal Reports, Inc.
Goals of Compressed Gases
Compressed Gases and Cylinders in General Specific Compressed Gases Quiz
11006115 Copyright Business & Legal Reports, Inc.
Summary
Cylinders must always be stored and secured properly
Use caution when transporting cylinders Understand the hazards of a compressed
gas before using it Even compressed air can be dangerous
11006115 Copyright Business & Legal Reports, Inc.
Quiz
1. The best way to lift a cylinder is by attaching a sling to its cap.
True or False 2. What type of gas cylinder must be stored away
from fuels? ______________________________3. What’s wrong with storing a cylinder in a staircase
or hallway? ______________________________4. Oxygen is dangerous because it will
explode or burn by itself.
True or False5. Describe the safest way to manually transport a
cylinder: _________________________________
11006115 Copyright Business & Legal Reports, Inc.
Quiz (cont.)
6. Propane is naturally colorless and odorless.
True or False
7. Compressed air can be dangerous because _____________________________________________.
8. Name two things that cylinder labels should contain: ____________________ and _____________________.
9. Breathing helium could cause suffocation.
True or False
10. The cylinder cap needs to be on only when it is being transported.
True or False
11006115 Copyright Business & Legal Reports, Inc.
Quiz Answers
1. False. Never lift a cylinder by its cap and never use a sling to lift a cylinder.
2. Oxygen cylinders must be stored 20 feet away from fuels or separated by 1/2 hour fire wall.
3. The cylinder is subject to more traffic, so the risk of being knocked over is greater.
4. False. Oxygen only supports combustion. Even a minute amount of oil can cause a reaction.
5. Use a handcart with a cylinder securing device such as a chain.
11006115 Copyright Business & Legal Reports, Inc.
Quiz Answers (cont.)
6. True. The odor is added to propane so that leaks can be more easily detected.
7. Compressed air can penetrate the skin, damage eyes or ears, or create flying objects.
8. Cylinders should be labeled with the name of the gas and the hazards of the gas.
9. True. Helium may block the flow of oxygen and cause suffocation.
10. False. Keep the cap on whenever the cylinder is not being used.
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