California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 114 - Storage of Explosive Materials › Section 5256 - Storage Within Magazines

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Magazines shall be kept clean and free
						from rubbish. They shall not be used as storerooms for anything except
						explosive materials and transfer conveyors or other magazine tools while
						explosive materials are stored therein. Sweepings from floors of magazines
						shall be properly disposed of. Magazine floors stained by leakage from
						explosive materials shall be cleaned according to instructions by the
						explosives manufacturer.
(b)
						Smoking, matches, open flames, spark producing devices and unauthorized fire
						arms shall be prohibited inside of or within 50 feet of magazines. Combustible
						materials shall not be stored within 50 feet of magazines.
(c) Fixed electric wiring in a magazine shall
						be equivalent to the requirements of Class II, Division 1, Hazardous Location,
						Electrical Safety Orders or may be more restrictive upon classification
						materials. The electric switch must be located outside of the
						magazine.
(d) When portable lights
						are necessary inside the magazine, permissible flash lights or permissible
						lanterns shall be used.
(e)
						Corresponding grades and brands of explosive materials shall be stored together
						in such a manner that brands and grade marks show. All stocks shall be stored
						so as to be easily counted and checked. Packages shall be piled in a stable
						manner and laid flat with top side up. Black powder, when stored in magazines
						with other explosive materials, shall be segregated by a sandbag barricade not
						less than 2 bags thick.
(f) When
						explosive materials are removed from a magazine, the oldest explosive materials
						of that kind in the magazine shall be taken and used first.
(g) Containers of bulk explosives shall not
						be unpacked or repacked in a magazine nor within 50 feet of a magazine or in
						close proximity to other explosive materials, except for manufacturing
						processes. Opened containers of bulk explosives shall be securely closed before
						being returned to a magazine.
(h)
						When magazines need inside repairs, all explosive materials shall be removed
						therefrom and the floors cleaned before work is started. In making outside
						repairs, if there is a possibility of causing sparks or fire, the explosive
						materials shall first be removed from the magazine.
(i) Explosive materials removed from a
						magazine under repair shall either be placed in another magazine or placed a
						safe distance from the magazine where they shall be properly guarded and
						protected until repairs have been completed and the explosive materials
						returned to the magazine.
(j) Every
						magazine used for the storage of explosive materials shall be under the
						supervision of a competent person who shall be not less than 21 years of
						age.
(k) Explosive materials shall
						not be piled/stored against interior walls so as not to interfere with
						ventilation.
(l) If buffer material
						is used to isolate the explosive material from the masonry walls, brick-lined
						or sand filled metal walls and single-thickness walls, it shall be so placed/
						positioned as to not interfere with the ventilation provisions of the side and
						walls.
(m) Ammonium nitrate fuel
						oil (ANFO) blasting agent shall be physically separated from other explosives
						stored in the same magazine and in such a manner that oil does not contaminate
						other explosives.
(n) Magazine
						interiors shall be of a smooth finish without cracks or crevices with all
						nails, screws, bolts and nuts countersunk. Exposed metal or materials capable
						of emitting sparks shall be covered so as not to come in contact with packages
						of explosive materials.
1.
						  Amendment filed 10-17-75; effective thirtieth day thereafter (Register 75, No.
						  42).
2. Amendment filed 7-16-76; effective thirtieth day thereafter
						  (Register 76, No. 29).
3. Amendment of section heading and section
						  and new NOTE filed 7-11-2003; operative 8-10-2003 (Register 2003, No.
						  28).
Note: Authority cited: Section
							 142.3, Labor
							 Code. Reference: Section
							 142.3, Labor
							 Code.