N.Y.C. Admin. Code § FC 6603: Section FC 6603: General Requirements

6603.1 Quantities not exceeding the maximum allowable quantity per control area.

The storage, handling and use of unstable (reactive) materials in amounts not exceeding the maximum allowable quantity per control area indicated in FC 5003.1 shall be in accordance with FC 5001, 5003, 6601, 6603 and 6606.

6603.1.1 Prohibited indoor storage, handling and use by occupancy.

It shall be unlawful to store, handle or use:

1. Class 3 and 4 unstable (reactive) materials in Group A, E, I, R or U occupancies.

2. Class 3 and 4 unstable (reactive) materials in offices in Group B, F, M or S occupancies, or any other areas of such occupancies that are accessible to the public.

6603.2 Quantities exceeding the maximum allowable quantity per control area.

The storage, handling and use of unstable (reactive) materials in amounts exceeding the maximum allowable quantity per control area indicated in FC 5003.1 shall be in accordance with FC Chapter 50 and this chapter.

6603.3 Multiple hazard sign.

Where two or more classes of unstable (reactive) materials are stored in immediate proximity to one another, such area shall be provided with hazard identification signs pursuant to FC Chapter 50 for the most severe class present.

6603.4 Multiple class storage.

Except as otherwise specifically provided in this code, where more than one class of unstable (reactive) materials is stored in the same control area, the maximum quantity allowed of each unstable (reactive) material shall be limited as follows: the maximum quantity shall be reduced by multiplying the maximum allowable quantity for each such material by the proportion that such material bears to the total quantity of unstable (reactive) material stored in the control area. The total of the proportional amounts shall not exceed 100 percent.

6603.5 Temperature-sensitive material.

Where the required storage temperature range, as specified by the manufacturer, extends beyond normal ambient temperatures, high or low temperature limit switches, as applicable, shall be provided in addition to normal temperature controls. These limit switches shall activate an alarm in a supervised area to ensure reporting to the fire department.