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.