Chapter 1 Administration

Chapter 2 Definitions

Chapter 3 General Precautions Against Fire

Chapter 4 Emergency Planning and Preparedness

Chapter 5 Fire Service Features

Chapter 6 Building Services and Systems

Chapter 7 Fire-Resistance-Rated Construction

Chapter 8 Interior Finish‚ Decorative Materials and Furnishings

Chapter 9 Fire Protection Systems

Chapter 10 Means of Egress

Chapter 11 Aviation Facilities

Chapter 12 Dry Cleaning

Chapter 13 Combustible Dust-Producing Operations

Chapter 14 Fire Safety During Construction and Demolition

Chapter 15 Flammable Finishes

Chapter 16 Fruit and Crop Ripening

Chapter 17 Fumigation and Thermal Insecticidal Fogging

Chapter 18 Semiconductor Fabrication Facilities

Chapter 19 Lumber Yards and Woodworking Facilities

Chapter 20 Manufacture of Organic Coatings

Chapter 21 Industrial Ovens

Chapter 22 Motor Fuel-Dispensing Facilities and Repair Garages

Chapter 23 High-Piled Combustible Storage

Chapter 24 Tents‚ Canopies and Other Membrane Structures

Chapter 25 Tire Rebuilding and Tire Storage

Chapter 26 Welding and Other Hot Work

Chapter 27 Hazardous Materials-General Provisions

Chapter 28 Aerosols

Chapter 29 Combustible Fibers

Chapter 30 Compressed Gases

Chapter 31 Corrosive Materials

Chapter 32 Cryogenic Fluids

Chapter 33 Explosives and Fireworks

Chapter 34 Flammable and Combustible Liquids

Chapter 35 Flammable Gases

Chapter 36 Flammable Solids

Chapter 37 Highly Toxic and Toxic Materials

Chapter 38 Liquefied Petroleum Gases

Chapter 39 Organic Peroxides

Chapter 40 Oxidizers

Chapter 41 Pyrophoric Materials

Chapter 42 Pyroxylin (Cellulose Nitrate) Plastics

Chapter 43 Unstable (Reactive) Materials

Chapter 44 Water-Reactive Solids and Liquids

Chapter 45 Referenced Standards

Appendix A Reserved

Appendix B Reserved

Appendix C Reserved

Appendix D Fire Apparatus Access Roads

Appendix E Hazard Categories

Appendix F Reserved

Appendix G Cryogenic Fluids-Weight and Volume Equivalents

Appendix H Identification of Buildings Utilizing Truss and Type Construction

The storage and use of flammable gases shall be in accordance with this chapter. Compressed gases shall also comply with Chapter 30 and gaseous hydrogen systems shall also comply with NFPA 55.

Exceptions:


1. Gases used as refrigerants in refrigeration systems (see Section 606).
2. Liquefied petroleum gases and natural gases regulated by Chapter 38.
3. Fuel-gas systems and appliances regulated under the Fuel Gas Code of New York State.
4. Hydrogen motor fuel-dispensing stations and repair garages designed and constructed in accordance with Chapter 22.
5. Pyrophoric gases in accordance with Chapter 41.
Permits shall be required as set forth in Section 109.
The following words and terms shall, for the purposes of this chapter and as used elsewhere in this code, have the meanings shown herein.

FLAMMABLE GAS.
A material which is a gas at 68°F (20°C) or less at 14.7 pounds per square inch atmosphere (psia) (101 kPa) of pressure [a material that has a boiling point of 68°F (20°C) or less at 14.7 psia (101 kPa)] which:

1. Is ignitable at 14.7 psia (101 kPa) when in a mixture of 13 percent or less by volume with air; or
2. Has a flammable range at 14.7 psia (101 kPa) with air of at least 12 percent, regardless of the lower limit.

The limits specified shall be determined at 14.7 psi (101 kPa) of pressure and a temperature of 68°F (20°C) in accordance with ASTM E 681.
FLAMMABLE LIQUEFIED GAS. A liquefied compressed gas which, under a charged pressure, is partially liquid at a temperature of 68°F (20°C) and which is flammable.
The storage and use of flammable gases in amounts not exceeding the maximum allowable quantity per control area indicated in Section 2703.1 shall be in accordance with Sections 2701, 2703, 3501 and 3503.
Flammable gases shall not be stored or used in Group A, B, E, I or R occupancies.

Exceptions:
1. Cylinders not exceeding a capacity of 250 cubic feet (7.08 m3) each at normal temperature and pressure (NTP) used for maintenance purposes, patient care or operation of equipment.
2. Food service operations in accordance with Section 3803.2.1.7.
Medical gas system supply cylinders shall be located in medical gas storage rooms or gas cabinets as set forth in Section 3006.
The aggregate quantities of flammable gases used for maintenance purposes and operation of equipment shall not exceed the maximum allowable quantity per control area indicated in Table 2703.1.1(1).
Cylinders and pressure vessels for flammable gases shall be designed, constructed, installed, tested and maintained in accordance with Chapter 30.
Compressed gas systems conveying flammable gases shall be provided with approved manual or automatic emergency shutoff valves that can be activated at each point of use and at each source.
A manual or automatic fail-safe emergency shutoff valve shall be installed on supply piping at the cylinder or bulk source. Manual or automatic cylinder valves are allowed to be used as the required emergency shutoff valve when the source of supply is limited to unmanifolded cylinder sources.
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.
Ignition sources in areas containing flammable gases in storage or in use shall be controlled in accordance with Section 2703.7.

Exception:
Fuel gas systems connected to building service utilities in accordance with the Fuel Gas Code of New York State .
Static-producing equipment located in flammable gas storage areas shall be grounded.
"No Smoking" signs shall be posted at entrances to rooms and in areas containing flammable gases in accordance with Section 2703.7.1
Electrical wiring and equipment shall be installed and maintained in accordance with Chapter 27 of the Building Code of New York State .
Exposed noncurrent-carrying metal parts, including metal gas piping systems, that are part of flammable gas supply systems located in a hazardous (electrically classified) location shall be bonded to a grounded conductor in accordance with the provisions of Chapter 27 of the Building Code of New York State .
Static-producing equipment located in flammable gas storage or use areas shall be grounded.
Containers of liquefied flammable gases and flammable gases in solution shall be positioned in the upright position or positioned so that the pressure relief valve is in direct contact with the vapor space of the container.

Exceptions:
1. Containers of flammable gases in solution with a capacity of 1.3 gallons (5 L) or less.
2. Containers of flammable liquefied gases, with a capacity not exceeding 1.3 gallons (5 L), designed to preclude the discharge of liquid from safety relief devices.
The storage and use of flammable gases in amounts exceeding the maximum allowable quantity per control area indicated in Section 2703.1 shall be in accordance with Chapter 27 and this chapter.
Indoor storage of flammable gases in amounts exceeding the maximum allowable quantity per control area indicated in Table 2703.1.1(1), shall be in accordance with Sections 2701, 2703 and 2704, and this chapter.
Buildings or portions thereof containing flammable gases shall be provided with explosion control in accordance with Section 911.
Outdoor storage of flammable gases in amounts exceeding the maximum allowable quantity per control area indicated in Table 2703.1.1(3) shall be in accordance with Sections 2701, 2703 and 2704, and this chapter.
Outdoor storage or use of flammable compressed gases shall be located from a lot line, public street, public alley, public way, or building not associated with the manufacture or distribution of such gases in accordance with Table 3504.2.1.

TABLE 3504.2.1
FLAMMABLE GASES—DISTANCE FROM STORAGE TO EXPOSURES

MAXIMUM
AMOUNT PER
STORAGE AREA
(cubic feet)
MINIMUM
DISTANCE
BETWEEN
STORAGE

AREAS (feet)
MINIMUM
DISTANCE TO LOT
LINES OF
PROPERTY THAT
CAN BE BUILT
UPON (feet)a
MINIMUM
DISTANCE TO
PUBLIC STREETS,
PUBLIC ALLEYS OR
 PUBLIC WAYS
(feet)a
MINIMUM DISTANCE TO BUILDINGS ON THE SAME
 PROPERTY
Nonrated
construction or
openings within 25
feet
2-hour
construction
and no
openings
within 25 feet
4-hour
construction
and no
openings
within 25 feet
0 - 4,225 5 5 5 5 0 0
4,226 - 21,125 10 10 10 10 5 0
21,126 - 50,700 10 15 15 20 5 0
50,701 - 84,500 10 20 20 20 5 0
84,501 or greater 20 25 25 20 5 0


For SI: 1 foot = 304.8 mm, 1 cubic foot = 0.02832 m3
   
a. The minimum required distances shall not apply when fire barriers without openings or penetrations having a minimum fire-resistance rating of 2 hours interrupt the line of sight between the storage and the exposure. The configuration of the fire barrier shall be designed to allow natural ventilation to prevent the accumulation of hazardous gas concentrations.
Containers for flammable gases shall not be permitted on the roofs of buildings.

Exception:
Containers utilized for hydrogen motor fuel-dispensing and generation facilities in accordance with Section 2209.
The use of flammable gases in amounts exceeding the maximum allowable quantity per control area indicated in Table 2703.1.1(1) or 2703.1.1(3) shall be in accordance with Sections 2701, 2703 and 2705, and this chapter.
Resources