ADOPTS WITH AMENDMENTS:

International Fire Code 2012 (IFC 2012)

Heads up: There are no amended sections in this chapter.
The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordinance.
Assignment of levels of hazards to be applied to specific hazard classes as required by NFPA 704 shall be in accordance with this appendix. The appendix is based on application of the degrees of hazard as defined in NFPA 704 arranged by hazard class as for specific categories defined in Chapter 2 of the International Fire Code and used throughout.
The hazard rankings shown in Table F101.2 have been established by using guidelines found within NFPA 704. As noted in Section 4.2 of NFPA 704, there could be specific reasons to alter the degree of hazard assigned to a specific material; for example, ignition temperature, flammable range or susceptibility of a container to rupture by an internal combustion explosion or to metal failure while under pressure or because of heat from external fire. As a result, the degree of hazard assigned for the same material can vary when assessed by different people of equal competence.

The hazard rankings assigned to each class represent reasonable minimum hazard levels for a given class based on the use of criteria established by NFPA 704. Specific cases of use or storage may dictate the use of higher degrees of hazard in certain cases.

TABLE F101.2
FIRE FIGHTER WARNING PLACARD DESIGNATIONS BASED ON HAZARD CLASSIFICATION CATEGORIES
HAZARD CATEGORY DESIGNATION
Combustible liquid II F2
Combustible liquid IIIA F2
Combustible liquid IIIB F1
Combustible dust F4
Combustible fiber F3
Cryogenic flammable F4, H3
Cryogenic oxidizing OX, H3
Explosive R4
Flammable solid F2
Flammable gas (gaseous) F4
Flammable gas (liquefied) F4
Flammable liquid IA F4
Flammable liquid IB F3
Flammable liquid IC F3
Organic peroxide, UD R4
Organic peroxide I F4, R3
Organic peroxide II F3, R3
Organic peroxide III F2, R2
Organic peroxide IV F1, R1
Organic peroxide V None
Oxidizing gas (gaseous) OX
Oxidizing gas (liquefied) OX
Oxidizer 4 OX4
Oxidizer 3 OX3
Oxidizer 2 OX2
Oxidizer 1 OX1
Pyrophoric gases F4
Pyrophoric solids, liquids F3
Unstable reactive 4D R4
Unstable reactive 3D R4
Unstable reactive 3N R2
Unstable reactive 2 R2
Unstable reactive 1 None
Water reactive 3 W3
Water reactive 2 W2
Corrosive H3, COR
Toxic H3
Highly toxic H4
F—Flammable category.
R—Reactive category.
H—Health category.
W—Special hazard: water reactive.
OX—Special hazard: oxidizing properties.
COR—Corrosive.
UD—Unclassified detonable material.
4D—Class 4 detonable material.
3D—Class 3 detonable material.
3N—Class 3 nondetonable material.
ICCIFC—12International Fire CodeF101.1
NFPA704—12Identification of
the Hazards of Materials
for Emergency Response
F101.1,
F101.2
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