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Monday, 12 June 2017

Compressed Gas cylinder

Compressed Gas cylinder

Compressed gas cylinders are commonly used in the different industries for various operations. These cylinders are heavy and they are specifically designed to contain gases, such as Oxygen, Nitrogen, Argon and Carbon Dioxide. These gases are compressed and stored under high pressure. The gas is released through a valve which regulates its discharge.
Hazards in compressed gas cylinders:

* Physical Hazard :-

Ø  They are heavy and can cause injury,
such as sprains and strains, if not well handled.
Ø  Unstable placement may cause the cylinder to fall and release
the pressurized / flammable gas that may cause injuries or even a fire.
Ø  When a cylinder falls over, it could also crush the feet of nearby workers.
Ø  Tipping, falling, heat, vibration can cause the cylinder to break and explode.
Ø  Exposure to the full force of escaping gas; High pressure (a sudden release of pressure can result in injuries by the propelling cylinder).
Ø  Faulty valves, loose joints or incorrect hose connections may cause leakage of flammable gas from the cylinders.
v  Chemical hazards:
Ø  The contained gas may be toxic, asphyxiating or flammable and are stored under high pressure.

Storage of cylinders:

Ø  Store cylinders upright and secure them with a chain, strap, or cable to a proper cylinder cart to prevent them from tipping or falling.
Ø  Completely close the valves, and keep the valve protection devices, such as caps or guards, securely in place.
Ø  Store cylinders in a dry, well-ventilated. Do not keep cylinders in lockers. If they leak, a build-up of flammable or other types of gases can occur inside the locker.
Ø  Mark the storage area with proper precautionary signs, such as flammable, oxidizer.
Ø  Place them in a location where they will not be subject to mechanical or physical damage, heat, or electrical circuits to prevent possible explosion or fire. Keep cylinders away from vehicle traffic.
Ø  Store empty cylinders separate from full ones, with proper signs full and Empty cylinder storage areas.
Keep oxygen cylinders 20 feet away from fuel-gas cylinders, such as acetylene, or separate them with a non-combustible barrier (such as a wall) at least 5 feet high with a fire-resistance.

Transport of cylinders:
Ø  Vehicles used for the transportation of gas cylinders should be well ventilated. Toxic gases must not be carried in a closed vehicle unless the vehicle has been specifically designed for the purpose.
Ø  Cylinders should be secured properly and should not project beyond the sides or ends of the vehicle
Ø  Use the right equipment, correct procedures, and sufficient number of persons to lift and move cylinders to avoid personal injury and cylinder damage.
Ø  Wear protective footwear, safety glasses, and heavy gloves.
Ø  Securely install the valve protection devices, such as caps or guards.
Ø  Don't drag or roll them use a properly designed cart or hand truck.
Ø  Prevent damage handle carefully avoid dropping or banging them.
Ø  Do not lift by the protective cap/guard or slings to lift or move them since valves may be damaged or sheared off.
Ø  Secure cylinders upright to a proper hand truck or cylinder cart designed for the purpose.

How to use cylinders:

Ø  Don’t change the colour, markings and labels. Read, understand, and follow all the instructions given with the cylinder, avoid misuse.
Ø  Before connecting a regulator, stand to one side, and momentarily open the valve and then close it immediately. This procedure, called ͟ the valve, is done to clear the valve of dust or dirt that could enter the regulator.
Ø  Open valves slowly by hand to avoid gauge damage. If a specific tool is required to open the valve, leave it in position so that the flow of gas can be stopped quickly in an emergency.
Ø  Close the gas cylinder valves when not in use such as during breaks, lunch, or end-of-shift to avoid leaks.
Ø  Avoid getting any oil or grease on the cylinders or regulators/gauges, particularly those containing oxygen, to avoid fire or explosion.

Practice Prevention Avoid Correction 

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