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•IS standards must be followed for understanding design, construction, fittings, testing, valves and use of gas cylinders.
•Types of safety devices mentioned in IS 5903 are bursting disc, fusible plug, PRV and their combination.
•It is prohibited to provide any safety devices on cylinders containing obnoxious or poisonous gases such as CO, HCL,HF, Cl2, SO2 etc.
•Color coding of cylinders should be given.
•First verify the marking, number, company, pressure, weight, capacity and date on the cylinder before their use.
•Cylinder should be handled in its special trolley or gently rolled on its bottom edge but not on the whole surface.
•Long vertical cylinder should be kept upright in its stand or tied with chain to prevent falling.
•No flammable materials should be allowed nearby.
•When not in use, the valve should be kept closed and covered with cap. If valve is leaking, it should be repaired by an expert or trained man.
•Pressure regulator, pressure gauge and NRV should be maintained in working order.
•Grease or lubricating oil should not be applied on valves or cylinders.
•Store room of gas cylinders should be well ventilated. Filled and empty cylinders should be kept separately.
•Before testing cylinders, it should be carefully depressurized. Valves should not be interchanged.
•Pipeline connected with cylinder should be kept according to the pressure and type of gases.
•Leakage of flammable gas may be checked by a soap solution and air bubble, ammonia by sulfur dioxide and chlorine by ammonia.
•Quality of cylinders should be restricted. A blast wall is necessary for highly explosive cylinders.
•Gas flow rate may be known by providing flow meter or placing the cylinder on a weighing platform.
•While connecting or changing a cylinder, necessary respirator and eye goggles shall be worn.
•For emptying the residual gas the cylinder shall not be heated. Provision of gas cylinder rules and SMPV shall be followed.
