All hose used inside buildings as a part of a liquefied petroleum gas system shall be of a type tested and approved by a recognized testing laboratory and be so marked. The maximum length of hose used inside a building on a salamander shall not exceed 20 feet and a shutoff valve shall be provided just ahead of the hose connection. Connections shall be tight and be capable of withstanding five times the working pressure to which they are subject. All hose shall be protected from mechanical injuries.
(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)