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APPENDIX E
<br />480 2015 MINNESOTA STATE FIRE CODE
<br />are so insensitive that there is very little probability
<br />of initiation or of transition from burning to detona-
<br />tion under normal conditions of transport. Materials
<br />are not cap sensitive; however, they are mass deto-
<br />nating when provided with sufficient input. Exam-
<br />ples: oxidizer and liquid fuel slurry mixtures and
<br />gels, ammonium nitrate combined with fuel oil.
<br />6. Division 1.6. Consists of extremely insensitive arti-
<br />cles which do not have a mass explosive hazard.
<br />This division is comprised of articles which contain
<br />only extremely insensitive detonating substances
<br />and which demonstrate a negligible probability of
<br />accidental initiation or propagation. Although this
<br />category of materials has been defined, the primary
<br />application is currently limited to military uses.
<br />Examples: Low vulnerability military weapons.
<br />Explosives in each division are assigned a compatibility
<br />group letter by the Associate Administrator for Hazardous
<br />Materials Safety (DOT) based on criteria specified by
<br />DOTn 49 CFR. Compatibility group letters are used to
<br />specify the controls for the transportation and storage
<br />related to various materials to prevent an increase in haz-
<br />ard that might result if certain types of explosives were
<br />stored or transported together. Altogether, there are 35
<br />possible classification codes for explosives, e.g., 1.1A,
<br />1.3C, 1.4S, etc.
<br />E102.1.2 Compressed gases. Examples include:
<br />1. Flammable: acetylene, carbon monoxide, ethane,
<br />ethylene, hydrogen, methane. Ammonia will ignite
<br />and burn although its flammable range is too narrow
<br />for it to fit the definition of “Flammable gas.”
<br />For binary mixtures where the hazardous compo-
<br />nent is diluted with a nonflammable gas, the mix-
<br />ture shall be categorized in accordance with CGA
<br />P-23.
<br />2. Oxidizing: oxygen, ozone, oxides of nitrogen, chlo-
<br />rine and fluorine. Chlorine and fluorine do not con-
<br />tain oxygen but reaction with flammables is similar
<br />to that of oxygen.
<br />3.Corrosive: ammonia, hydrogen chloride, fluorine.
<br />4. Highly toxic: arsine, cyanogen, fluorine, germane,
<br />hydrogen cyanide, nitric oxide, phosphine, hydrogen
<br />selenide, stibine.
<br />5. Toxic: chlorine, hydrogen fluoride, hydrogen sul-
<br />fide, phosgene, silicon tetrafluoride.
<br />6. Inert (chemically unreactive): argon, helium, kryp-
<br />ton, neon, nitrogen, xenon.
<br />7. Pyrophoric: diborane, dichloroborane, phosphine,
<br />silane.
<br />8. Unstable (reactive): butadiene (unstabilized), eth-
<br />ylene oxide, vinyl chloride.
<br />E102.1.3 Flammable and combustible liquids. Exam-
<br />ples include:
<br />1. Flammable liquids.
<br />Class IA liquids shall include those having flash
<br />points below 73°F (23°C) and having a boiling point
<br />at or below 100°F (38°C).
<br />Class IB liquids shall include those having flash
<br />points below 73°F (23°C) and having a boiling point
<br />at or above 100°F (38°C).
<br />Class IC liquids shall include those having flash
<br />points at or above 73°F (23°C) and below 100°F
<br />(38°C).
<br />2.Combustible liquids.
<br />Class II liquids shall include those having flash
<br />points at or above 100°F (38°C) and below 140°F
<br />(60°C).
<br />Class IIIA liquids shall include those having flash
<br />points at or above 140°F (60°C) and below 200°F
<br />(93°C).
<br />Class IIIB liquids shall include those liquids having
<br />flash points at or above 200°F (93°C).
<br />E102.1.4 Flammable solids. Examples include:
<br />1. Organic solids: camphor, cellulose nitrate, naphtha-
<br />lene.
<br />2. Inorganic solids: decaborane, lithium amide, phos-
<br />phorous heptasulfide, phosphorous sesquisulfide,
<br />potassium sulfide, anhydrous sodium sulfide, sulfur.
<br />3. Combustible metals (except dusts and powders):
<br />cesium, magnesium, zirconium.
<br />E102.1.5 Combustible dusts and powders. Finely
<br />divided solids which may be dispersed in air as a dust
<br />cloud: wood sawdust, plastics, coal, flour, powdered met-
<br />als (few exceptions).
<br />E102.1.6 Combustible fibers. See Section 5202.1.
<br />E102.1.7 Oxidizers. Examples include:
<br />1. Gases: oxygen, ozone, oxides of nitrogen, fluorine
<br />and chlorine (reaction with flammables is similar to
<br />that of oxygen).
<br />2. Liquids: bromine, hydrogen peroxide, nitric acid,
<br />perchloric acid, sulfuric acid.
<br />3. Solids: chlorates, chromates, chromic acid, iodine,
<br />nitrates, nitrites, perchlorates, peroxides.
<br />E102.1.7.1 Examples of liquid and solid oxidizers
<br />according to hazard.
<br />Class 4: ammonium perchlorate (particle size
<br />greater than 15 microns), ammonium permanganate,
<br />guanidine nitrate, hydrogen peroxide solutions more
<br />than 91 percent by weight, perchloric acid solutions
<br />more than 72.5 percent by weight, potassium super-
<br />oxide, tetranitromethane.
<br />Class 3: ammonium dichromate, calcium hypochlo-
<br />rite (over 50 percent by weight), chloric acid (10
<br />percent maximum concentration), hydrogen perox-
<br />ide solutions (greater than 52 percent up to 91 per-
<br />cent), mono-(trichloro)-tetra-(monopotassium di-
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