1. Separate Inside Storage. A room or building used for the storage of materials in containers
or portable tanks, separated from other types of storage occupancies.
2. Segregated Storage. Segregated storage is when materials are physically separated by sills,
curbs, and distance. The distance used to separate materials may be occupied by nonhazardous,
compatible material. If used, the distance between hazardous materials must be maintained even
if nonhazardous, compatible material is moved.
4.7 Features of Hazardous Materials Storage Facilities. In view of the inherent risks to
personnel and facilities posed by the storage of hazardous materials, protective features must be
considered in designing and allocating storage space. MIL-HDBK-1032-2, Covered Storage,
outlines requirements for climate control; electrical lighting; plumbing; fire protection; automatic
sprinklers; alarms; monitors; communications; heat/smoke and explosion venting; ventilation;
and shelving/rack systems. Storage aids should be extensively utilized for storage of hazardous
materials to preclude double and triple stacking of pallet loads that cannot survive the load
bearing weight of the top pallet. Containers frequently collapse under this pressure and the
stacks start to fall.
4.8 Types of Hazardous Materials Storage Areas. Hazardous materials are generally
classified by their primary hazard characteristic since it is not practical to provide a completely
detailed, item-by-item listing of these materials and their storage requirements. The 10 broad
areas of hazardous materials storage are:
HAZARD STORAGE AREA CODES
Low Hazard (General Purpose)
They provide for separation of materials with a view towards reducing the risks of hazardous
reactions. They also provide a means, when used in conjunction with Appendix C, for directing