Valves, gauges and other safety fittings for application to boilers and to piping installations for and in connection with boilers, Specification for valves, mountings and fittings— 20 стр.
Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)— 66 стр.