N.Y.C. Admin. Code § FC 6403: Section FC 6403: General Requirements

6403.1 Quantities not exceeding the maximum allowable quantity per control area.

The storage, handling and use of pyrophoric 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, 6401, 6403 and 6406.

6403.1.1 Emergency shutoff.

Compressed gas systems conveying pyrophoric gases shall be provided with approved manual or automatic emergency shutoff valves that can be activated at each point of use and each source.

6403.1.1.1 Shutoff at source.

A manual or automatic fail-safe emergency shutoff valve shall be installed on supply piping at the container or other source of supply. The shutoff valve shall be operated by a remotely located manually activated shutdown control located not less than 15 feet (4572 mm) from the source of supply. Manual or automatic container valves on the containers supplying the pyrophoric material may serve as the emergency shutoff valve when the containers are the sole source of supply and are not manifolded.

6403.1.1.2 Shutoff at point of use.

A manual or automatic emergency shutoff valve shall be installed on the supply piping at the point of use or at a point where the equipment using the gas is connected to the supply system.

6403.2 Quantities exceeding the maximum allowable quantity per control area.

The storage, handling and use of pyrophoric 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.