This article shall apply to materials not otherwise covered
in this chapter which are highly flammable or which may react to cause
fires or explosions or which, by their presence, create or augment
a fire or explosion hazard or which, because of their toxicity, flammability
or liability to an explosion, render fire fighting abnormally dangerous
or difficult and also to flammable liquids which are chemically unstable
and which may spontaneously form explosive compounds or undergo spontaneous
reactions of explosive violence or with sufficient evolution of heat
to be a fire hazard. Hazardous chemicals shall include such materials
as compressed gases, flammable solids, corrosive liquids, radioactive
materials, oxidizing materials, potentially explosive chemicals, highly
toxic materials and poisonous gases.
A permit shall be required for the storage or handling of more
than 55 gallons of corrosive liquids; or more than 500 pounds of oxidizing
materials; or more than 500 millicuries of radioactive material; or
more than 2,000 cubic feet of flammable compressed gas; or 10 pounds
or more of organic peroxides; or 500 pounds or more of ammonium nitrate;
or any amount of highly toxic material, poisonous gas or radium.