§ 1915.135 Powder actuated fastening tools.
(a) The section shall apply to ship repairing and shipbuilding only.
(b) General precautions. (1) Powder actuated fastening tools shall be tested each day before loading to ensure that the safety devices are in proper working condition. Any tool found not to be in proper working order shall be immediately removed from service until repairs are made.
(2) Powder actuated fastening tools shall not be used in an explosive or flammable atmosphere.
(3) All tools shall be used with the type of shield or muzzle guard appropriate for a particular use.
(4) Fasteners shall not be driven into very hard or brittle materials such as cast iron, glazed tile, surface hardened steel, glass block, live rock, face brick or hollow title.