C.F.R. » Title 30 » CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR › SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH › PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES › Subpart R—Personnel Hoisting

30 C.F.R. § 56.19011

Drum flanges

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Flanges on drums shall extend radially a minimum of 4 inches or three rope diameters beyond the last wrap, whichever is the lesser.