30 C.F.R. § 56.19011 Drum flanges.
Title 30 - Mineral Resources
Flanges on drums shall extend radially a minimum of 4 inches or three rope diameters beyond the last wrap, whichever is the lesser.
Title 30: Mineral Resources
PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES
Subpart R—Personnel Hoisting
Hoists
§ 56.19011 Drum flanges.
