(1)Welded cylinders shall not be used for filling any permanent or high pressure liquefiable gas like Boron trifluoride, Carbonyl chloride (Phosgene), Chlorine trifluoride, Cyanogen, Cyanogen chloride, Hydrogen cyanide, Hydrogen sulphide:(2)For export, compressed gases may be filled at lower pressure subject to the provisions of International Maritime Dangerous Goods Code (IMDG Code) or Agreement concerning to the International Carriage of Dangerous Goods by Road (ADR) and with prior approval of the Chief Controller.(3)No cylinder which has once been used for storage and transportation of coal gas, carbon monoxide, Compressed Bio Gas, Hydrogen, CNG, Coal Bed Methane and methane shall be used for filling with any other gas except mixture of these gases with inert gases.(4)No cylinder shall be filled with any gas that is capable of combining chemically which may endanger its serviceability.
