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// CODE SNIPPET

3204.3 Outdoor Cryogenic Storage

NYC Fire Code 2014 > 32 Cryogenic Fluids > 3204 Storage > 3204.3 Outdoor Cryogenic Storage
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Outdoor storage of cryogenic containers shall be in accordance with FC 3204.3.1 through 3204.3.1.2.5.

3204.3.1 Separation From Hazardous Conditions

Cryogenic containers and systems in storage or use shall be separated from materials and conditions which pose exposure hazards to or from each other in accordance with FC 3204.3.1.1 through 3204.3.1.1.5.

3204.3.1.1 Stationary Cryogenic Containers

Stationary cryogenic containers shall be separated from exposure hazards in accordance with the minimum separation distances set forth in FC Table 3204.3.1.1.

FC TABLE 3204.3.1.1 SEPARATION OF STATIONARY CRYOGENIC CONTAINERS FROM EXPOSURE HAZARDS

EXPOSURE MINIMUM DISTANCE (feet)
Buildings, regardless of
construction type
1, or minimum required
for service access
Building exit 10
Building openings other than
building exits
1
Air intakes 10
Lot lines 5
Group A occupancies and other
public gathering places
50
Nonambulatory patient areas 50
Combustible waste or vegetation 15
Other hazardous materials In accordance with
FC Chapter 27

For SI: 1 foot = 304.8 mm.

3204.3.1.1.1 Point-Of-Fill Connections

Fill connections for stationary cryogenic containers shall not be positioned closer to exposure hazards than the minimum distances required for stationary cryogenic containers. Fill connections for stationary cryogenic containers shall be located and maintained to afford cargo tank operator access to valves and indicators on the cryogenic containers and cargo tank.

3204.3.1.1.2 Surfaces Beneath Cryogenic Containers

The surface of the area on which stationary cryogenic containers are placed, including the surface of the area located below the point where connections are made for the purpose of filling such cryogenic containers, shall be compatible with the cryogenic fluid in the cryogenic container. The surface shall be capable of withstanding temperatures of cryogenic fluid that may be released during normal filling operations, without cracking, shifting or other impact upon the stability of the installation.

3204.3.1.1.3 Location

Containers of cryogenic fluids shall not be stored or used within diked areas containing other hazardous materials.

3204.3.1.1.3.1 Prohibited Locations

It shall be unlawful to install stationary cryogenic containers on the roof of any building or structure.

3204.3.1.1.4 Areas Subject to Flooding

Stationary cryogenic containers, vaporizers, heat exchangers and connecting piping located in areas subject to flooding shall be securely anchored or elevated to prevent separation of the cryogenic containers and related equipment from foundations or supports.

3204.3.1.1.5 Drainage

The area surrounding stationary cryogenic containers shall be provided with a means to prevent accidental discharge of cryogenic fluid from endangering personnel, cryogenic containers, equipment and adjacent structures or to enter enclosed spaces. The stationary cryogenic container shall not be placed where spilled or discharged fluid will be retained around the cryogenic container.

Exception: These drainage requirements shall not apply when it is determined by the commissioner that the cryogenic container does not constitute a hazard, upon consideration of special features such as crushed rock utilized as a heat sink, topographical conditions, nature of occupancy, proximity to structures on the same or adjacent property, and the capacity and construction of cryogenic containers and character of cryogenic fluid to be stored.

3204.3.1.2 Portable Cryogenic Containers

Outdoor storage of portable cryogenic containers shall comply with the requirements of FC3203 and this section.

3204.3.1.2.1 Exposure Hazard Separation

Portable cryogenic containers shall be separated from exposure hazards in accordance with FC Table 3204.3.1.2.1.

FC TABLE 3204.3.1.2.1 SEPARATION OF PORTABLE CRYOGENIC CONTAINERS FROM EXPOSURE HAZARDS

EXPOSURE MINIMUM DISTANCE
(feet)
Building exits 10
Building openings other than building exits 1
Air intakes 10
Lot lines 5
Combustible waste or vegetation 15
Other hazardous materials In accordance with
FC Chapter 27

For SI: 1 foot = 304.8 mm

3204.3.1.2.2 Surfaces Beneath Cryogenic Containers

Cryogenic containers shall be placed on surfaces that are compatible with the cryogenic fluid in the cryogenic container.

3204.3.1.2.3 Drainage

The area surrounding portable cryogenic containers shall be provided with a means to prevent accidental discharge of fluids from endangering adjacent containers, buildings, equipment or adjoining property.

Exception: These requirements shall not apply when it is determined by the commissioner that the cryogenic container does not constitute a hazard.

3204.3.1.2.4 Areas Subject to Flooding

Portable cryogenic containers located in areas subject to flooding shall be properly secured to prevent movement.

3204.3.1.2.5 Pressure Relief Valve Discharge

Cryogenic containers shall be positioned such that the pressure relief valve discharge is directed away from any building exit.

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