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OCCUPANCY CLASSIFICATION AND USE

buildings or areas conform to the requirements of 7. Refrigeration systems.
Section 416 and the International Fire Code. 8. The storage or utilization of materials for agricul-
2. Wholesale and retail sales and storage of flamma- tural purposes on the premises.
ble and combustible liquids in mercantile occu- 9. Stationary storage battery systems installed in
pancies conforming to the International Fire accordance with the International Fire Code.
Code.
10. Corrosive personal or household products in their
3. Closed piping system containing flammable or original packaging used in retail display.
combustible liquids or gases utilized for the opera-
tion of machinery or equipment. 11. Commonly used corrosive building materials.
4. Cleaning establishments that utilize combustible 12. Buildings and structures occupied for aerosol
liquid solvents having a flash point of 140°F product storage shall be classified as Group S-1,
(60°C) or higher in closed systems employing provided that such buildings conform to the
equipment listed by an approved testing agency, requirements of the International Fire Code.
provided that this occupancy is separated from all 13. Display and storage of nonflammable solid and
other areas of the building by 1-hour fire barriers nonflammable or noncombustible liquid hazard-
constructed in accordance with Section 707 or 1- ous materials in quantities not exceeding the maxi-
hour horizontal assemblies constructed in accor- mum allowable quantity per control area in Group
dance with Section 711, or both. M or S occupancies complying with Section
5. Cleaning establishments that utilize a liquid solvent 414.2.5.
having a flash point at or above 200°F (93°C). 14. The storage of black powder, smokeless propellant
6. Liquor stores and distributors without bulk stor- and small arms primers in Groups M and R-3 and
age. special industrial explosive devices in Groups B,
F, M and S, provided such storage conforms to the

TABLE 307.1(1)
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARD a, j, m, n, p
GROUP WHEN STORAGE b USE-CLOSED SYSTEMS b USE-OPEN SYSTEMS b
THE MAXIMUM
MATERIAL CLASS ALLOWABLE Solid Liquid Gas cubic Solid Liquid Gas cubic Solid Liquid
QUANTITY IS pounds gallons feet at NTP pounds gallons feet at NTP pounds gallons
EXCEEDED (cubic feet) (pounds) (cubic feet) (pounds) (cubic feet) (pounds)
See See See
Combustible dust NA H-2 NA NA NA NA NA
Note q Note q Note q
Loose (100) (100) (20)
Combustible fiber q H-3 NA NA NA NA NA
Baled o (1,000) (1,000) (200)
II H-2 or H-3 120 d, e 120 d 30 d
Combustible liquid c, i IIIA H-2 or H-3 NA 330 d, e NA NA 330 d NA NA 80 d
IIIB NA 13,200 e, f 13,200 f 3,300 f

Cryogenic flammable NA H-2 NA 45 d NA NA 45 d NA NA 10 d
Cryogenic inert NA NA NA NA NL NA NA NL NA NA
Cryogenic oxidizing NA H-3 NA 45 d NA NA 45 d NA NA 10 d
Division 1.1 H-1 1 e, g (1) e, g 0.25 g (0.25) g 0.25 g (0.25) g
Division 1.2 H-1 1 e, g (1) e, g 0.25 g (0.25) g 0.25 g (0.25) g
Division 1.3 H-1 or H-2 5 e, g (5) e, g 1 g (1) g 1 g (1) g
Explosives Division 1.4 H-3 50 e, g (50) e, g NA 50 g (50) g NA NA NA
Division 1.4G H-3 125 e, l NA NA NA NA NA
Division 1.5 H-1 1 e, g (1) e, g 0.25 g (0.25) g 0.25 g (0.25) g
Division 1.6 H-1 1 e, g NA NA NA NA NA
Gaseous NA 1,000 d, e NA 1,000 d, e
Flammable gas H-2 NA NA NA NA
Liquefied (150) d, e NA (150) d, e NA
IA H-2 30 d, e 30 d 10 d
Flammable liquid c NA NA NA NA NA
IB and IC or H-3 120 d, e 120 d 30 d
Flammable liquid, H-2
combination NA or H-3 NA 120 d, e, h NA NA 120 d, h NA NA 30 d, h
(IA, IB, IC)
(continued)

48 2018 INTERNATIONAL BUILDING CODE ®
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