29 CFR Part 1926
§ 1926.913 — Blasting in excavation work under compressed air
OSHA 1926 · Subpart U — Blasting and the Use of Explosives. Full current text with cross-references on BuildSpec.
§ 1926.913 Blasting in excavation work under compressed air. (a) Detonators and explosives shall not be stored or kept in tunnels, shafts, or caissons. Detonators and explosives for each round shall be taken directly from the magazines to the blasting zone and immediately loaded. Detonators and explosives left over after loading a round shall be removed from the working chamber before the connecting wires are connected up. (b) When detonators or explosives are brought into an air lock, no employee except the powderman, blaster, lock tender and the employees necessary for carrying, shall be…
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