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 10 pounds of organic peroxides; or more than 500 pounds
or more of nitromethane; or 1,000 pounds or more of ammonium nitrate, ammonium
nitrate fertilizers and fertilizer mixtures; or any amount of highly toxic
material or poisonous gas.[1]
Except in the case of hospitals, a permit shall be required
for the storage or handling at any installation of more than one microcurie
of radium not contained in a sealed source or more than one millicurie of
radium or other radioactive material in a sealed source or sources or any
amount of radioactive material for which a specific license from the United
States Atomic Energy Commission is required.
Highly toxic materials shall be segregated from other
chemicals and combustible and flammable substances by storage in a room or
compartment separated from other areas by walls and floor and ceiling assemblies
having a fire-resistance rating of not less than one hour. The storage room
shall be provided with adequate drainage facilities and natural or mechanical
ventilation to the outside atmosphere.
Legible warning signs and placards stating the nature
and location of the highly toxic materials shall be posted at all entrances
to areas where such materials are stored or used.
Storage of poisonous gases shall be in rooms of at least
one-hour fire-resistant construction and having natural or mechanical ventilation
adequate to remove leaking gas. Such ventilation shall not discharge to a
point where the gases may endanger any person.
Legible warning signs stating the nature of the hazard
shall be placed at all entrances to locations where poisonous gases are stored
or used.
Satisfactory provisions shall be made for containing and neutralizing
or safely flushing away leakage of corrosive liquids which may occur during
storage or handling.