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6304.1.5 Liquid-tight floor.
In addition to FC 5004.12, floors of storage areas for liquid and solid oxidizers shall be of liquid-tight construction.
6304.1.6 Smoke detection.
An approved supervised smoke detection system in accordance with the construction codes, including the Building Code shall be installed in liquid and solid oxidizer storage areas. Such smoke detection system shall be monitored by an approved central station.
Exception: Detached storage buildings protected by a fire extinguishing system.
6304.1.6.1 Smoke and heat venting.
Smoke and heat venting shall be provided in accordance with FC 910 and the construction codes, including the Building Code.
6304.1.7 Storage conditions.
The maximum quantity of oxidizers that may be stored in a detached storage building shall not exceed the quantities set forth in FC Tables 6304.1.7(1) through 6304.1.7(4).
Storage Configuration | Limits (feet) |
Piles Maximum length Maximum width Maximum height Minimum distance to next pile Minimum distance to walls | No Limit 50 20 3 2 |
Maximum quantity per pile | No Limit |
Maximum quantity per building | No Limit |
For SI: 1 foot = 304.8 mm.
a. Storage in noncombustible containers or in bulk in detached storage buildings is not limited as to quantity or arrangement.
Storage Configuration | Limits | ||
Segregated storage | Cutoff storage rooms c | Detached building | |
Piles Maximum width Maximum height Minimum distance to next pile Minimum distance to walls | 16 feet 10 feet Note d 2 feet | 25 feet 12 feet Note d 2 feet | 25 feet 12 feet Note d 2 feet |
Maximum quantity per pile | 20 tons | 50 tons | 200 tons |
Maximum quantity per building | 200 tons | 500 tons | No Limit |
For SI: 1 foot = 204.8 mm, 1 ton = 0.907185 metric ton.
a. Storage in noncombustible containers is not limited as to quantity or arrangement, except that piles shall be at least 2 feet from walls in buildings protected throughout by a sprinkler system and 4 feet from walls in buildings not protected throughout by a sprinkler system; the distance between piles shall not be less than the pile height.
b. Quantity limits shall be reduced by 50 percent in buildings or portions of buildings used for retail sales.
c. Cutoff storage rooms shall be separated from the remainder of the building by 2-hour fire barriers.
d. Aisle width shall not be less than the pile height.
Storage Configuration | Limits | ||
Segregated storage | Cutoff storage rooms c | Detached building | |
Piles Maximum width Maximum height Minimum distance to next pile Minimum distance to walls | 12 feet 8 feet Note d 4 feet | 16 feet 10 feet Note d 4 feet | 20 feet 10 feet Note d 4 feet |
Maximum quantity per pile | 20 tons | 30 tons | 150 tons |
Maximum quantity per building | 100 tons | 500 tons | No Limit |
For SI: 1 foot = 204.8 mm, 1 ton = 0.907185 metric ton.
a. Storage in noncombustible containers is not limited as to quantity or arrangement, except that piles shall be at least 2 feet from walls in sprinklered buildings and 4 feet from walls in nonsprinklered buildings; the distance between piles shall not be less than the pile height.
b. Quantity limits shall be reduced by 50 percent in buildings or portions of buildings used for retail sales.
c. Cutoff storage rooms shall be separated from the remainder of the building by 2-hour fire barriers.
d. Aisle width shall not be less than the pile height.
Storage Configuration | Limits (feet) |
Piles Maximum length Maximum width Maximum height Minimum distance to next pile | 10 4 8 8 |
Maximum quantity per building | No Limit |
For SI: 1 foot = 304.8 mm.
6304.1.7.1 Liquid and solid oxidizers.
The storage configuration for liquid and solid oxidizers shall be as set forth in FC Tables 6304.1.7(1) through 6304.1.7(4).
6304.1.7.2 Class 2 oxidizers.
Class 2 oxidizers shall not be stored in basements, cellars or other areas below grade, except when such storage is in stationary tanks.
6304.1.7.3 Class 3 and 4 oxidizers.
Class 3 and 4 oxidizers in amounts exceeding the maximum allowable quantity per control area set forth in FC 5003.1 shall be stored on the ground floor only.
6304.1.8 Separation of Class 4 oxidizers from other materials.
In addition to the requirements in FC 5003.9.8, Class 4 oxidizer liquids and solids shall be separated from other hazardous materials by not less than a 1-hour fire barrier or stored in hazardous materials storage cabinets. Detached storage buildings for Class 4 oxidizer liquids and solids shall be located a minimum of 50 feet (15 240 mm) from other hazardous materials storage.
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