SCHEDULE 4GAS CONTAINERS
PART I
Valves and cocks
6.
(1)
Every valve or cock intended to be subjected to a pressure exceeding 6.8948 bar shall be of forged steel or of brass or bronze complying with the specification contained in Part II of this Schedule.
(2)
A valve or cock shall be fitted to the pipe line to enable the supply of gas from the container or containers to the mixing device to be shut off.
(3)
(a)
In the case of a pressure pipe line the valve or cock shall be placed between the reducing valve and the container or containers and shall be readily visible and accessible from the outside of the vehicle and a notice indicating its position and method of operation shall be affixed in a conspicuous position on the outside of the vehicle carrying the gas container or containers.
(b)
In other cases, if the valve or cock is not so visible and accessible as aforesaid, a notice indicating its position shall be affixed in a conspicuous position on the outside of the vehicle carrying the container or containers.