TECHNICAL DATA, REGULATIONS AND PUBLICATIONS
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TYPES OF EXPLOSIVES:
There are three classes of explosive materials. These classes, together with the description of explosive materials comprising each class, are as follows:
Explosive materials which can be caused to detonate by means of a blasting cap when unconfined, (for example, dynamite, flash powders, and bulk salutes).
Explosive materials which can be caused to deflagrate when confined (for example, black powder, safety fuses, igniters, igniter cords, fuse lighters, and “display fireworks” classified as UN0333, UN0334, or UN0335 by the U.S. Department of Transportation regulations at 49 CFR 172.101, except for bulk salutes).
(For example, ammonium nitrate-fuel oil and certain water-gels)
TYPES OF EXPLOSIVE STORAGE MAGAZINES:
There are five types of explosive storage magazines. These types, together with the classes of explosive materials, as defined in §555.202, which will be stored in them, are as follows:
Type 1 magazines.
A type 1 magazine is a permanent structure: a building, an igloo or “Army-type structure”, a tunnel, or a dugout. It is to be bullet-resistant, fire-resistant, weather-resistant, theft-resistant, and ventilated.
Type 2 magazines.
Mobile and portable indoor and outdoor magazines for the storage of high explosives, subject to the limitations prescribed by §§555.206, 555.208(b), and 555.213. Other classes of explosive materials may also be stored in type 2 magazines.
Type 2 indoor magazines located in warehouses and wholesale and retail establishments are also subject to 29 CFR 1910.109(c)(4)(iv) (OSHA). requiring substantial wheels or casters to facilitate easy removal in the case of fire.
Type 3 magazines.
Portable outdoor magazines for the transportation and temporary storage of explosives while attended (for example, a “day-box”), subject to the limitations prescribed by §§555.206 and 555.213. Other classes of explosives materials may also be stored in type 3 magazines.
Type 4 magazines.
Magazines for the storage of low explosives, subject to the limitations prescribed by §§555.206(b), 555.210(b), and 555.213. Blasting agents may be stored in type 4 magazines, subject to the limitations prescribed by §§555.206(c), 555.211(b), and 555.213. Detonators that will not mass detonate may also be stored in type 4 magazines, subject to the limitations prescribed by §§555.206(a), 555.210(b), and 555.213.
Type 5 magazines.
Explosive Storage Magazine
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