Ariz. Admin. Code § R11-1-235 - Construction of Class I Magazines
A. Class I magazines shall be of masonry or
wood covered with sheet metal, or of metal construction; or a combination of
these types. Hollow masonry units used in construction required to be
bullet-resistant shall have all hollow spaces filled with a dry sand/cement mix
or well-tamped sand. Wood-constructed walls required to be bullet resistant
shall have at least a six-inch space between interior and exterior sheathing
and the space between sheathing shall be filled with well-tamped sand or
sand/cement mix. Metal wall construction, when required to be bullet-resistant,
shall be lined with at least a four-inch thickness of brick, masonry, hardwood
or sand.
B. Floors and roofs of
masonry magazines may be of wood construction. Wood floors shall be
tongue-and-grooved lumber having a minimum thickness of 3/4 inch. Roofs
required to be bullet-resistant shall be protected by four inches of hardwood
or by a sand tray located at line of eaves and covering the entire area except
that necessary for ventilation. Sand in the sand tray shall be maintained at a
depth of not less than four inches.
C. All wood at the exterior of magazines,
excluding eaves, shall be protected by being covered with black or galvanized
steel or aluminum metal of thickness of not less than No. 26 gauge. All nails
exposed to the interior of magazines shall be well countersunk.
D. Foundations for permanent magazines shall
be of substantial construction and arranged to provide good cross
ventilation.
E. Magazines shall be
ventilated sufficiently to minimize dampness and heating of stored explosives.
Ventilation openings shall be screened to prevent the entrance of
sparks.
F. Openings to magazines
shall be restricted to that necessary for the placement and removal of stocks
of explosives. Doors for magazines for Class A explosives shall be
bullet-resistant.
G. Magazines
shall be provided with two substantial locks, and magazine doors shall be kept
locked except during the time of placement and removal of stocks of
explosives.
H. Provisions shall be
made to prevent the piling of stocks of explosives directly against the walls;
such protection, however, shall not interfere with proper ventilation at
interior of side and end walls.
I.
Full and semi-trailers are acceptable for the storage of explosives when
modified to comply with Class I magazine construction.
Notes
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