Page 435 - 2018_IFC

EXPLOSIVES AND FIREWORKS

5601.8.1.1 Mass-detonating explosives (Division 1.1, weight of explosives for Division 1.1 distance
1.2 or 1.5). The total net explosive weight of mass-det- determination. Table 5604.5.2(1) or 5605.3 shall
onating explosives (Division 1.1, 1.2 or 1.5) shall be be used where TNT equivalency is used to estab-
used. See Table 5604.5.2(1) or Table 5605.3, as appro- lish the net explosive weight.
priate. 4. For composite pyrotechnic items Division 1.1
Exception: Where the TNT equivalence of the and Division 1.3, the sum of the net weights of
explosive material has been determined, the equiva- the pyrotechnic composition and the explosives
lence is allowed to be used to establish the net explo- involved shall be used. See Tables 5604.5.2(1)
sive weight. and 5604.5.2(2).
5601.8.1.2 Nonmass-detonating explosives (exclud- 5601.8.1.4 Moderate fire—no blast hazards (Divi-
ing Division 1.4). Nonmass-detonating explosives sion 1.4). For Division 1.4 explosives, the total weight
(excluding Division 1.4) shall be as follows: of the explosive material alone is the net weight. The
net weight of the explosive material shall be used.
1. Division 1.3 propellants. The total weight of the
propellants alone shall be the net explosive
weight. The net weight of propellant shall be SECTION 5602
used. See Table 5604.5.2(2).
DEFINITIONS
2. Combinations of bulk metal powder and pyro- 5602.1 Definitions. The following terms are defined in Chap-
technic compositions. The sum of the net weights ter 2:
of metal powders and pyrotechnic compositions
in the containers shall be the net explosive AMMONIUM NITRATE.
weight. See Table 5604.5.2(2). BARRICADE.
5601.8.1.3 Combinations of mass-detonating and Artificial barricade.
nonmass-detonating explosives (excluding Division Natural barricade.
1.4). Combination of mass-detonating and nonmass-
detonating explosives (excluding Division 1.4) shall be BARRICADED.
as follows: BLAST AREA.
1. Where Division 1.1 and 1.2 explosives are BLAST SITE.
located in the same site, determine the distance BLASTER.
for the total quantity considered first as 1.1 and
then as 1.2. The required distance is the greater of BLASTING AGENT.
the two. Where the Division 1.1 requirements are BULLET RESISTANT.
controlling and the TNT equivalence of the 1.2 is DETONATING CORD.
known, the TNT equivalent weight of the 1.2
items shall be allowed to be added to the total DETONATION.
explosive weight of Division 1.1 items to deter- DETONATOR.
mine the net explosive weight for Division 1.1 DISCHARGE SITE.
distance determination. See Table 5604.5.2(2) or
Table 5605.3, as appropriate. DISPLAY SITE.
2. Where Division 1.1 and 1.3 explosives are EXPLOSIVE.
located in the same site, determine the distances High explosive.
for the total quantity considered first as 1.1 and Low explosive.
then as 1.3. The required distance is the greater of Mass-detonating explosives.
the two. Where the Division 1.1 requirements are UN/DOTn Class 1 explosives.
controlling and the TNT equivalence of the 1.3 is Division 1.1.
known, the TNT equivalent weight of the 1.3 Division 1.2.
items shall be allowed to be added to the total Division 1.3.
explosive weight of Division 1.1 items to deter- Division 1.4.
mine the net explosive weight for Division 1.1 Division 1.5.
distance determination. See Table 5604.5.2(1), Division 1.6.
5604.5.2(2) or 5605.3, as appropriate. EXPLOSIVE MATERIAL.
3. Where Division 1.1, 1.2 and 1.3 explosives are FALLOUT AREA.
located in the same site, determine the distances
for the total quantity considered first as 1.1, next FIREWORKS.
as 1.2 and finally as 1.3. The required distance is Fireworks, 1.3G.
the greatest of the three. As allowed by Items 1 Fireworks, 1.4G.
and 2, TNT equivalent weights for 1.2 and 1.3 FIREWORKS DISPLAY.
items are allowed to be used to determine the net
HIGHWAY.

402 2018 INTERNATIONAL FIRE CODE ®
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