30 C.F.R. § 57.19022 Initial measurement.
Title 30 - Mineral Resources
After initial rope stretch but before visible wear occurs, the rope diameter of newly installed wire ropes shall be measured at least once in every third interval of active length and the measurements averaged to establish a baseline for subsequent measurements. A record of the measurements and the date shall be made by the person taking the measurements. This record shall be retained until the rope is retired from service. [50 FR 4082, Jan. 29, 1985, as amended at 60 FR 33722, June 29, 1995]
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart R—Personnel Hoisting
Wire Ropes
§ 57.19022 Initial measurement.
