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CLASS 4 - An oxidizing material that can undergo an explosive reac-
<br />tion when catalyzed or exposed to heat, shock, or friction. Examples;
<br />Ammonium perchlorate, ammonium permanganate, guanidine nitrate, hydrogen
<br />peroxide solutions of more than 91% by weight, perchloric acid solutions
<br />of more than 72.5%a by weight, potassium superoxide.
<br />CLASS 3 - An oxidizing material that will cause a severe increase
<br />in the burning rate of combustible material with which it comes in con-
<br />tact. Examples: Ammonium dichromate, bromine pentafluoride, bromine
<br />trifluoride, hydrogen peroxide 52% to no more than 91% concentration
<br />by weight, calcium hypochlorite over 5o% by weight, potassium bromate,
<br />potassium chlorate, sodium chlorite over 40% by weight, mono~trichlora}
<br />tetra;~monopotassium dichloro}-penta-s-triazinetrione, perchloric acid
<br />solutions 60% to 72.5% by weight, potassium dichloro-s-triazine-trione
<br />potassium dichloroisocyanurate}, sodium chlorate, sodium chlorite aver
<br />40%a by weight, sodium dichloro-s-triazinetrione sodium dichloroisacy-
<br />anurate}.
<br />CLASS 2 - An oxidizing material that will moderately increase the
<br />burning rate or which may cause spontaneous ignition of combustible
<br />material with which it comes in contact. Examples: Calcium hypo-
<br />chlorite 50% or less by weight, chromium trioxide chromic acid},
<br />hydrogen peroxide 27.5% to 52°la concentration by weight, nitric acid
<br />more than 70% concentration, potassium perchlorate, potassium perman-
<br />ganate, sodium chlorite 40%a or less, sodium peroxide, sodium perman-
<br />ganate, halane X1,3-dichloro-5, 5-dimethylhydantoin}, trichloro-s-
<br />triazinetrione ~trichloroisocyanuric acid}.
<br />CLASS ~ - An oxidizing material whose primary hazard is that it
<br />may increase the burning rate of combustible materials with which it
<br />comes in contact. Examples: Aluminum nitrate, ammonium persulfate,
<br />barium chlorate, barium nitrate, barium perchlorate, barium permangan-
<br />ate, barium peroxide, beryllium nitrate, calcium chlorate, calcium
<br />chlorite, calcium citrate, calcium peroxide, cobalt nitrate, cupric
<br />nitrate, ferric nitrate, hydrogen peroxide solutions over 8°/a but not
<br />exceeding 27.5% concentration by weight, lead nitrate, lithium hypo-
<br />chlor~te, lead peroxide, lithium peroxide, magnesium nitrate, magnesium
<br />perchlorate, magnesium periaxide, mercurous nitrate, nickel nitrate,
<br />nitric acid 70% concentration or less, perchloric acid solutions less
<br />than 60%a by weight, potassium dichromate, potassium nitrate, potassium
<br />nitrite, potassium persulfate, silver nitrate, sodium carbonate
<br />peroxide, sodium dichloro-s-triazinetrione dehydrate, sodium dichromate,
<br />sodium nitrate, sodium nitrite, sodium perborate, sodium perborate
<br />tetrahydrate, sodium perchlorate monohydrate, sodium persulfate,
<br />strontium chlorate, strontium nitrate, strontium peroxide, thorium
<br />nitrate, uranium nitrate, zinc chlorate, zinc nitrate, zinc peroxide,
<br />zinc permanganate, zirconium nitrate,
<br />NOTE: These examples are based upon NFPA Standard 43A.
<br />Or anic Peroxides. Organic peroxides are flammable compounds
<br />which contain the double oxygen or peroxy ~-0-0-} group, and are subject
<br />to explosive decomposition. They are available as:
<br />Ordinance - $1
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