reactive materials, all combustible rubbish, dry or oiled paper wrapping material, and other
combustible materials shall be removed from the storage area. The area should be conspicuously
marked or posted to indicate the material being stored. Access to the reactive materials storage
area should be restricted. Personnel should not be permitted to enter the area unless
accompanied by an individual familiar with the hazards of the material stored in the area.
F. References. Additional information may be found in:
1. Title 29 CFR, part 1910.
2. ANSI/NFPA standard 101, Life Safety Code.
4.18 DoD Storage Type T: Poison Material Storage
A. Purpose. This area should be used to store packaged materials meeting the definition of UN
class 6.1, inhalation hazards, packing group I or II, carcinogens, infectious or cytotoxic drugs, or
oxidizers or flammable liquids that are also poisons.
B. Hazard Considerations. The release of materials stored in this area may adversely affect the
environment and/or cause personnel injury through inhalation, skin absorption, or ingestion.
Materials stored in this area are likely to be assigned multiple hazards. Such materials may be
flammable, combustible, oxidizing, or corrosive, in addition to being poisonous. Determining a
suitable storage area for material assigned the single hazard poison, for example, may be
relatively simple. When a poison is assigned a secondary hazard, the material must be further
segregated in storage on the basis of the combined hazard. To avoid the risk of fire or explosion,
for example, material assigned hazard classifications of both poison and oxidizer cannot be
permitted to come into direct contact with flammables or combustibles. Determination of a
suitable storage area for materials assigned multiple hazards, however, must be made on a case-
by-case basis and must consider both the primary and secondary hazards. The storage layout
plan should provide for positive horizontal and vertical isolation of incompatible materials.
Isolation may be achieved by using separate inside storage or detached storage.
C. Basic Requirements. Poison storage sites should be selected with due regard to the amount,
toxicity, and environmental hazards of the poisons stored, and the number and size of containers
to be handled. Storage areas containing poisons shall be conspicuously marked with signs or
placards identifying them. The manufacturer's recommendations regarding the temperature range
required to maintain the effectiveness of pesticides to be stored should be considered when
determining the suitability of a particular poisons storage area for individual pesticides. The
ventilation system should assure that vapors from the poison storage areas do not migrate to other
storage areas, staging areas, access aisles, etc. within the building. There should be a means to
verify airflow such as a manometer or suspended air strips.
1. Access/Egress. Provisions should be made to prevent unauthorized entry with door locking
mechanisms that do not impede emergency exits.
2. Spill Control and Containment. Particular emphasis should be placed on control and