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3704.3 Outdoor Storage, Handling and Use

NYC Fire Code 2014 > 37 Highly Toxic and Toxic Materials > 3704 Highly Toxic and Toxic Compressed Gases > 3704.3 Outdoor Storage, Handling and Use

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The outdoor storage, handling and use of highly toxic and toxic compressed gases shall be in accordance with FC 3704.3.1 through 3704.3.4.

3704.3.1 Applicability

The outdoor storage, handling and use of highly toxic and toxic compressed gases shall be in accordance with FC 3704.3.1.1 through 3704.3.1.3.

3704.3.1.1 Quantities Not Exceeding the Maximum Allowable Quantity Per Control Area

The outdoor storage, handling or use of highly toxic and toxic gases in amounts not exceeding the maximum allowable quantity per control area set forth in FC Table 2703.1.1(4) shall be in accordance with FC 2701, 2703 and 3701.

3704.3.1.2 Quantities Exceeding the Maximum Allowable Quantity Per Control Area

The outdoor storage, handling or use of highly toxic and toxic gases in amounts exceeding the maximum allowable quantity per control area set forth in FC Table 2703.1.1(4) shall be in accordance with FC 3701 and 3704.3 and FC Chapter 27.

3704.3.1.3 Ozone Gas Generators

The outdoor use of ozone gas-generating equipment shall be in accordance with FC3705.

3704.3.2 General Outdoor Requirements

The outdoor storage, handling and use of highly toxic and toxic compressed gases shall be in accordance with FC 3704.3.2.1 through 3704.3.2.7.

Outdoor storage, handling or use of highly toxic or toxic compressed gases shall be located in accordance with FC 3704.3.2.1.1 through 3704.3.2.1.3.

Exception: Compressed gases located in gas cabinets complying with the requirements of FC 2703.8.6 and 3704.1.2 and located 5 feet (1524 mm) or more from buildings and 25 feet (7620 mm) or more from an exit discharge.

3704.3.2.1.1 Distance Limitation to Exposures

Outdoor storage, handling or use of highly toxic or toxic compressed gases shall not be located within 75 feet (22 860 mm) of a lot line, public street, private road, exit discharge or building not associated with the manufacture or distribution of such gases, unless all of the following conditions are met:

Storage is shielded by a 2-hour fire-resistant barrier which interrupts the line of sight between the storage and the exposure.
The 2-hour fire-resistant barrier shall be located at least 5 feet (1524 mm) from any exposure.
The 2-hour fire-resistant barrier shall not have more than two sides at approximately 90-degree (1.57 rad) directions, or three sides with connecting angles of approximately 135 degrees (2.36 rad).

3704.3.2.1.2 Openings in Exposed Buildings

Where the storage, handling or use area is located within 75 feet (22 860 mm) of a building not associated with the manufacture or distribution of highly toxic or toxic compressed gases, openings into such building other than for piping are not allowed above the height of the top of the 2-hour fire-resistant barrier or within 50 feet (15 240 mm) horizontally from the storage area whether or not shielded by a fire barrier.

3704.3.2.1.3 Air Intakes

Any area used for storage, handling or use shall not be located within 75 feet (22 860 mm) of air intakes.

3704.3.2.2 Leaking Containers

The requirements of FC3704.2.2.3 shall apply to outdoor containers. Gas cabinets and exhausted enclosures shall be located within or immediately adjacent to outdoor storage, handling or use areas.

3704.3.2.3 Local Exhaust for Portable Containers

Local exhaust for outdoor portable containers shall be provided in accordance with FC3704.2.2.4.

3704.3.2.4 Piping and Controls—Stationary Containers

Piping and controls for outdoor stationary containers shall be in accordance with FC3704.2.2.5.

3704.3.2.5 Treatment Systems

The treatment system requirements set forth in FC3704.2.2.7 shall apply to highly toxic or toxic gases located outdoors.

3704.3.2.6 Emergency Power

The requirements for emergency power set forth in FC3704.2.2.8 shall apply to highly toxic or toxic gases located outdoors.

3704.3.2.7 Gas Detection System

The gas detection system requirements set forth in FC3704.2.2.10 shall apply to highly toxic or toxic gases located outdoors.

3704.3.3 Outdoor Storage Weather Protection for Portable Containers

Weather protection in accordance with FC2704.13 shall be provided for portable containers located outdoors and not within gas cabinets or exhausted enclosures. The storage area shall be protected throughout by a sprinkler system.

Exception: A sprinkler system is not required when:

all materials under the weather protection structure, including hazardous materials and the containers in which they are stored, are noncombustible.
the weather protection structure is located not less than 30 feet (9144 mm) from combustible materials or structures or is separated from such materials or structures using a fire barrier complying with the requirements of FC3704.3.2.1.1.