S-2.1, r. 13 - Regulation respecting occupational health and safety

Full text
78. Compressed gas cylinders in series: Compressed gas cylinders linked in a series via a collector shall be supported, held together and form a unit by means of a rack or other frame designed for such purpose, and the cocks and safety valves shall be protected from being accidentally bumped or knocked.
O.C. 885-2001, s. 78.