Explosives, including special industrial high-explosive
materials, shall be stored in magazines which meet the requirements
of this chapter. This shall not be construed as applying to wholesale
and retail stocks of small arms ammunition, explosive bolts, explosive
rivets or cartridges for explosive-actuated power tools in quantities
involving less than 500 pounds (227 kilograms) of explosive material.
Magazines shall be in the custody of a competent person at all times
who shall be at least 21 years of age, and who shall be held responsible
for compliance with all safety precautions.
Not more than 50 pounds (22.7 kilograms) of
explosives and 5,000 blasting caps shall be permitted to be stored
in wholesale and retail hardware stores or other approved establishments.
Explosives and blasting caps shall be stored in separate Class II
magazines at approved locations on the first floor not more than 10
feet (3,048 millimeters) from an entrance. A distance of 10 feet (3,048
millimeters) shall be maintained between the magazines. Their location
shall not be changed without approval.
Class I and Class II magazines shall be located away from inhabited buildings, passenger railways, public highways and other magazines in conformance with this article, except as provided in §
127-12.
Magazines shall be constructed and maintained
as follows:
A. Class I magazines shall be designed and constructed
in accordance with NFiPA 495 listed in Appendix A and shall have openings only for ventilation and entrance.
B. Class II magazines shall be constructed of two-inch
(fifty-one millimeter) tongue-and-grooved hardwood, covered on the
outside with not less than thirty-six-thousandths-inch nominal thickness
sheet steel or No. 20 United States standard gauge sheet aluminum
(0.032 inch), or of all-metal construction with sides, bottom and
cover of sheet metal lined with three-eighths-inch (ten-millimeter)
plywood or the equivalent. Edges of metal covers shall overlap sides
at least one inch (25 millimeters). Class II magazines, when located
in wholesale and retail hardware stores or other approved establishments,
shall be mounted on casters or wheels to facilitate removal.
Magazines for the storage of explosives shall
be weather-resistant and properly ventilated and, when used for storage
of Class A explosives other than black powder, blasting caps and electric
blasting caps, shall also be bullet resistant.
Magazines shall not be provided with artificial
heat or light, except that if artificial light is necessary, an approved
electric safety flashlight or safety lantern shall be used.
Smoking, matches, open flames, spark-producing
devices and firearms shall be prohibited inside or within 50 feet
(15,240 millimeters) of magazines. Combustible materials shall not
be stored within 50 feet (15,240 millimeters) of magazines.
The land surrounding magazines shall be kept
clear of brush, dried grass, leaves, trash and debris for a distance
of at least 25 feet (7,620 millimeters).
Magazines shall be kept locked except when being
inspected or when explosives are being placed therein or being removed
therefrom.
Magazines shall be kept clean, dry and free
of grit, paper, empty packages and rubbish.
Blasting caps, electric blasting caps, detonating
primers and primed cartridges shall not be stored in the same magazine
with other explosives.
Packages of explosives shall not be unpacked
or repacked in a magazine within 50 feet (15,240 millimeters) of a
magazine.
Magazines shall not be used for the storage
of any metal tools or of any commodity except explosives, but this
restriction shall not apply to the storage of blasting agents, blasting
supplies and oxidizers used in compound blasting agents.
When an explosive has deteriorated to an extent
that it is in an unstable or dangerous condition or if nitroglycerin
leaks from any explosive, then the person in possession of such explosive
shall immediately report that fact to the code official and upon his
approval shall proceed to destroy such explosives and clean floors
stained with nitroglycerin in accordance with the instructions of
the manufacturer. Only experienced persons shall do the work of destroying
explosives.
Property upon which Class I magazines are located
shall be posted with signs reading "Explosives - Keep Off." Such signs
shall be located so as to minimize the possibility of a bullet traveling
in the direction of the magazine if anyone shoots at the sign.
Class II magazines shall be painted red and
shall bear lettering in white, on all sides and top, at least three
inches (76 millimeters) high, "Explosives - Keep Fire Away."