Standard Operating Procedure for Chemical Handling and Storage
EHS-00005 R12
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DCN1216
CNSE Confidential
Page 7 of 43
6.2
General Requirements for Bulk Storage Areas
6.2.1
When less than 300 square feet of storage: the area must consist of
minimum one-hour fire resistive construction.
6.2.2
When greater than 300 square feet of storage: the area must consist of
minimum two-hour fire resistive construction.
6.2.3
Floors shall be non-combustible and liquid tight.
6.2.4
Spill containment shall be provided through the use of sills, sumps and/or
drains.
6.2.5
Exhaust ventilation at the rate of one cubic foot per
minute per square foot
of floor area, or
six air changes per hour,
whichever is greater, and
arranged such that exhaust is taken within 12 inches of the floor.
6.2.6
Exhaust ventilation shall not be re-circulated within the room or building.
6.2.7
Electrical wiring and equipment shall be installed in accordance with the
Electric Code. In areas where
flammables are stored, electrical equipment
and wiring shall be approved for Class I, Division 1, hazardous locations.
6.2.8
When there is the possibility of an explosive environment, storage rooms
shall be located on the outer perimeter of the building and provided with
explosion venting.
6.2.9
Non-compatible chemicals shall be separated by a noncombustible solid
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