R 408.11223 General rules for cylinders--I.

Rule 1223. (1) A chain, bracket, or other restraining device shall be used at all times to prevent cylinders from falling. (2) Acetylene or liquefied gas cylinders shall not be placed on their sides, but shall be stood valve end up. (3) A cylinder shall not be dropped, dragged, rolled on its side, or struck violently. (4) A cylinder shall be lifted only by cradles or enclosed platforms when using a crane or hoisting device. Electromagnets, hooks, ropes, or slings shall not be used. (5) A frozen or ice clogged valve shall be thawed either by warm air or use of warm water and dried before using. Boiling water or a flame shall not be used. Force shall not be applied to a valve or cap to loosen a cylinder frozen in place.