RECOMMENDED STORAGE LIMITS FOR HAZARDOUS MATERIALS IN GENERAL PURPOSE AREAS
TYPE MATERIAL
HCC
OSHA
LIMITS PER BLDG/FIRE AREA
OSHA
CLASS
-------------------------
MAX QTY
MAX QTY
MAX UI SIZE
FLAMMABLE LIQUID
F2
IB
32 oz/1000 ml
25 Gal
25 Gal
FLAMMABLE LIQUID
F3
IC
32 oz/1000 ml
25 Gal
25 Gal
FLAMMABLE LIQUID
F4
II
64 oz/2000 ml
120 Gal
120 Gal
COMB LIQUID
V4
IIIA
1 Gal/4000 ml
120 Gal
120 Gal
AEROSOL, FLAM
V3
16 oz/500 ml
25 Gal
25 Gal
AEROSOL, NONFLAM
V2
16 oz/500 ml
--
--
ALKALI, CORROSIVE,
B1
1 Gal/4000 ml (Liquids)
180 Gal
--
INORGANIC
2.5 Lb/1.14 Kg (Solids)
990 Lb
--
ALKALI, CORROSIVE,
B2
1 Gal/4000 ml (Liquids)
180 Gal
--
ORGANIC
2.5 Lb/1.14 Kg (Solids)
990 Lb
--
ACID, CORROSIVE,
C1
1 Gal/4000 ml (Liquids)
180 Gal
--
INORGANIC
2.5 Lb/1.14 Kg (Solids)
990 Lb
--
ACID, CORROSIVE,
C2
1 Gal/4000 ml (Liquids)
180 Gal
--
ORGANIC
2.5 Lb/1.14 Kg (Solids)
990 Lb
--
OXIDIZER
D1
6 oz/188 ml (Liquids)
10 Gal
--
2.5 Lb/1.14 Kg (Solids)
250 Lb
--
OXIDIZER & POISON
D2
6 oz/188 ml (Liquids)
10 Gal
--
2.5 Lb/1.14 Kg (Solids)
250 Lb
--
FLAM LIQUID AND
F6
4 oz/125 ml (Liquids)
10 Gal
25 Gal
CORROSIVE, ACID
FLAM LIQUID AND
F7
4 oz/125 ml (Liquids)
10 Gal
25 Gal
CORROSIVE, ALKALI
FLAMMABLE SOLID
F8
No Limit
30 Lb
--
FLAMMABLE & POISON
F5
4 oz/125 ml (liquids)
10 Gal
--
GAS, FLAMMABLE
G2
1 Lb
220 Lb
--
GAS, NONFLAMMABLE
G3
10 Lb
300 Lb
--
UN POISON, PG II
T3
16 oz/500 ml (Liquids)
45 Gal
--
3 oz/85 Gm (Solids)
7.5 Lb
--
Notes:
1. For flammable liquids, maximum quantity based on 29 CFR 1910.106(e)(2)(b) based on the
application of horizontal standard for storage of materials.
2. Progression in U/I sizes chosen based on maximum quantity of 1 gal. as desirable for
storage.
3. All HAZMAT in general purpose storage area would be placed in storage cabinets meeting
requirements of 29 CFR 1910.106(d)(3). Maximum of 3 storage cabinets allowed in fire area.
Additional group of up to 3 cabinets must be separated from other cabinets or group of
cabinets by at least 100 ft. as specified by NFPA 30.
4. In lieu of storage cabinets, separate storage rooms constructed as specified in 29 CFR
1910.106(d)(4) are allowed.
5. Maximum storage for flammable aerosols based on fact that flammable aerosols are considered
same as OSHA IA liquids for storage purposes per the definition in 29 CFR 1910.106 (A)(13).
6. Maximum quantity of corrosives chosen based on fact that maximum desired amount in storage
should not equal EPCRA reportable quantity of Sulfuric Acid and Sodium Hydroxide as these are
common corrosives.
7. Storage of kits containing multiple types of hazardous materials will be determined by the
most restrictive size/quantity limitations, compatibility constraints, and most severe hazard
classification.
8. Incompatible products shall be placed in separate storage cabinets in the same manner as
specified in Figure 4.1.
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