Gas piping and fixtures in all new buildings
and all alterations and extensions made to the gas piping in old buildings
must be done in accordance with the following rules.
All gas pipe shall be of the best quality wrought
iron or steel and of the kind classed as standard pipe and as hereinbefore
called for. No gas pipe shall be smaller than 3/8 inch.
All fittings (except stopcocks or valves) shall
be of galvanized malleable iron.
Outlets for gas ranges shall have a diameter
not less than required for six burners, and all gas heaters shall
have a straightway cock on service pipe.
