30 CFR Part 56Public Domain
§ 56.7806 — Oxygen intake coupling
Subpart F — Drilling and Rotary Jet Piercing
The oxygen intake coupling on jet-piercing drills shall be constructed so that only the oxygen hose can be coupled to it.
Public Domain: 30 CFR Part 56 (MSHA Safety and Health Standards — Surface Metal and Nonmetal Mines) is a U.S. government publication and is not subject to copyright. Text extracted from the official source ↗. Figures are served from the eCFR; if one does not load, use the link in its place.