30 CFR Part 57Public Domain

§ 57.6161 — Auxiliary facilities

Subpart E — Explosives

(a)Auxiliary facilities used to store explosive material near work places shall be wooden, box-type containers equipped with covers or doors, or facilities constructed or mined-out to provide equivalent impact resistance and confinement.

(b)The auxiliary facilities shall be—

(1)Constructed of nonsparking material on the inside when used for the storage of explosives;

(2)Kept clean, suitably dry, and orderly;

(3)Kept in repair;

(4)Located out of the line of blasts so they will not be subjected to damaging shock or flyrock;

(5)Identified with warning signs or coded to indicate the contents with markings visible from any approach;

(6)Located at least 15 feet from all haulageways and electrical equipment, or placed entirely within a mined-out recess in the rib used exclusively for explosive material;

(7)Filled with no more than a one-week supply of explosive material;

(8)Separated by at least 25 feet from other facilities used to store detonators; and

(9)Kept securely locked unless all access to the mine is either locked or attended.

← Previous§ 57.6160 Next →§ 57.6200

Public Domain: 30 CFR Part 57 (MSHA Safety and Health Standards — Underground 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.