(a) Storage containers. Cylinders and pressure vessels shall be designed, constructed, tested and maintained in accordance with nationally recognized good practice. Each cylinder, pressure vessel or group of containers shall be marked with the name of the gas contained in accordance with nationally recognized good practice.
(b) Storage and use. All compressed gas cylinders in service or in storage shall be adequately secured to prevent falling or being knocked over. (1975 L.M.C., ch. 23, § 1.)