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415.3.2 Detached Buildings for Group H-1 and H-2 or H-3
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The storage of hazardous materials in excess of those amounts listed in Table 415.3.2 shall be in accordance with the applicable provisions of Sections 415.4 and 415.5. Where a detached building is required by Table 415.3.2, there are no requirements for wall and opening protection based on fire separation distance.
TABLE 415.3.2 REQUIRED DETACHED STORAGE
TABLE 415.3.2 REQUIRED DETACHED STORAGE
| DETACHED STORAGE IS REQUIRED WHEN THE QUANTITY OF MATERIAL EXCEEDS THAT LISTED HEREIN | |||
| Material | Class | Solids and Liquids (tons)a,b | Gases (cubic feet)a,b |
| Explosives | Division 1.1 | Maximum Allowable Quantity | Not Applicable |
| Division 1.2 | Maximum Allowable Quantity | ||
| Division 1.3 | Maximum Allowable Quantity | ||
| Division 1.4 | Maximum Allowable Quantity | ||
| Division 1.4c | 1 | ||
| Division 1.5 | Maximum Allowable Quantity | ||
| Division 1.6 | Maximum Allowable Quantity | ||
| Oxidizers | Class 4 | Maximum Allowable Quantity | Maximum Allowable Quantity |
| Unstable (reactives) detonable | Class 3 or 4 | Maximum Allowable Quantity | Maximum Allowable Quantity |
| Water-reactives detonable | Class 2 or 3 | Maximum Allowable Quantity | Not Applicable |
| Oxidizer, liquids and solids | Class 3 | 1,200 | Not Applicable |
| Class 2 | 2,000 | Not Applicable | |
| Organic peroxides | Unclassified Detonable | Maximum Allowable Quantity | Not Applicable |
| Class I | Maximum Allowable Quantity | Not Applicable | |
| Class II | 25 | Not Applicable | |
| Class III | 50 | Not Applicable | |
| Unstable (reactives) nondetonable | Class 3 | 1 | 2,000 |
| Class 2 | 25 | 10,000 | |
| Water reactives nondetonable | Class 3 | 1 | Not Applicable |
| Class 2 | 25 | Not Applicable | |
| Pyrophoric materials detonable | Not Applicable | Maximum Allowable Quantity | Maximum Allowable Quantity |
| Pyrphoric gases and nondetonables | Not Applicable | Not Applicable | 2,000 |
| For SI: 1 ton = 2,000 pounds = 906 kg, 1 cubic foot = 0.02832 m3, 1 pound = 0.454 kg. |
| a. For materials that are detonable, the distance to other buildings or lot lines shall be as specified in Table 415.3.1 based on trinitrotoluene (TNT) equivalence of the material. For materials classified as explosives, see the New York City Fire Code. Unclassified detonable organic peroxides, detonable pyrophoric materials, detonable unstable (reactive) materials and detonable water-reactive materials shall be considered as explosives for the purposes of storage. |
| b. "Maximum Allowable Quantity" means the maximum allowable quantity per control area set forth in Table 307.1(1). |
| c. Limited to Division 1.4 materials and articles, including articles packaged for shipment, that are not regulated as an explosive under Bureau of Alcohol, Tobacco and Firearms (BATF) regulations or unpackaged articles used in process operations that do not propagate a detonation or deflagration between articles, providing the net explosive weight of individual articles does not exceed 1 pound. |
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