![@name](/images/flag/s/en.gif)
6 The L.P. gas cylinder must have a shut-off valve terminating in a Type 1 L.P. gascylinder- valve outlet. A Type 1 compatible cylinder with a Type 1 cylinder valve has a positive seating connection that does not permit gas flow until a positive seal has been obtained. The cylinder must be arranged for vapor withdrawal. It must also include a collar to protect the cylinder valve. A safety-relief device having direct communication with the vapor space of cylinder must be provided. This will expel