This article shall apply to all storage and
handling of liquefied petroleum gas and the equipment pertinent to
such uses. The requirements of this article shall be in addition to
the requirements of the Standards of the National Fire Protection
Association in Circular Number 58 which shall apply to all storage
and handling of liquefied petroleum gas.
As used in this article, the following terms
shall have the meanings indicated:
LIQUEFIED PETROLEUM (LP) GAS
Any material which is composed predominantly of any of the
following hydrocarbons, or mixture of them: propane, propylene, butane
(normal butane or isobutane, and butylenes). When reference is made
to gas in this article it shall refer to liquefied petroleum gases
as defined herein.
LIQUEFIED PETROLEUM GAS EQUIPMENT
All containers, apparatus, piping (not including utility
gas distribution piping systems) and equipment pertinent to the storage
and handling of liquefied petroleum gas. Gas-consuming appliances
shall not be considered as being liquefied gas equipment. Containers
shall include all vessels, whether portable or stationary, such as
tanks, cylinders or drums for transportation or storage of liquefied
petroleum gas.
This section shall apply to the storage of portable
containers not in excess of 1,000 pounds water capacity, filled or
partially filled, at usual location, but not connected for use, or
in storage for resale by dealers or resellers. This section shall
not apply to containers stored at charging plants or at plants devoted
primarily to the storage and distribution of LP gas or other petroleum
products.
A. Container location. Containers in storage shall be
located so as to minimize exposure to excessive temperature rise,
physical damage or tampering by unauthorized persons.
B. Inside storage. Containers when stored inside shall
not be located within 10 feet of exits, stairways or in areas normally
used or intended for the safe exit of people.
C. Valve protecting caps. Containers (empty or filled)
which require valve protecting caps shall have such caps in place
while in storage.
D. Outlet valve. The outlet valve of containers in storage
shall be closed.
E. Empty containers. Empty containers which have been
in LP gas service should preferably be stored in the open. When stored
inside, they shall be considered as full containers for the purpose
of determining the maximum quantity of LP gas permitted by this section.
F. Storage within buildings frequented by the public.
Storage within buildings used as retail or wholesale outlets or mercantile
establishments inclusive but not limited to hardware stores, department
stores, sporting goods stores, surplus outlets, small boat sales and
supply outlets (exclusive of marine supply outlets for ships), and
similar occupancies, including service stations, shall be limited
to the following storage of LP gas:
(1) Maximum size containers shall be 2 1/2 pounds
water capacity and shall be such as those with completely self-contained
hand torches and similar applications.
(2) The display of such containers shall be limited to
a total of 24 units of each brand and size.
(3) The maximum quantity of LP gas on display and in storage
shall not exceed 200 pounds in any building or fire area.
G. Exception. Storage limits of LP gas as outlined in Subsection
F shall not apply to containers stored at charging plants or at plants or outlets devoted primarily to the storage and distribution of LP gas or other gases used for welding, manufacturing or therapeutic processes or wholesale plumbing supply houses.
Storage within buildings not frequented by the
public such as industrial buildings, charging plants, or plants devoted
primarily to the storage and distribution of LP gas or other gases
used in industry or for therapeutic purposes shall not exceed 300
pounds (approximately 2,550 cubic feet in vapor form) except as follows:
A. Maximum quantity. The quantity of LP gas stored in
special buildings or rooms considered as fire areas shall not exceed
10,000 pounds.
B. Storage rooms. The walls, floors and ceilings of container
storage rooms that are within or adjacent to other parts of the building
shall be constructed of material having at least a two hour fire resistant
rating with all openings from storage rooms to other parts of the
building protected with fire-resistant door assemblies having a 1 1/2
hour fire resistant rating.
C. Explosive-relieving construction. A portion of the
exterior walls or roof shall have 10% of the combined area of the
enclosing walls and roof constructed of single strength glass or other
similar explosion-relieving construction.
D. Open flames prohibited. Such rooms shall have no open
flames for heating or lighting.
E. Ventilation. Such rooms shall be adequately ventilated
both top and bottom to the outside only. The openings from such vents
shall be at least five feet away from any other opening (window, door,
etc.) into any building.
F. Floors. The floors of such rooms shall not be below
ground level. Any space below the floor shall be of solid fill or
properly (adequately) ventilated to the outer air.
G. Location adjacent to certain uses prohibited. Such
storage rooms shall not be located adjoining the line of property
occupied by schools, churches, hospitals, athletic fields, or other
places of assembly.
H. Electrical installations. The electrical installations
within the room shall be in accordance with the National Fire Underwriters
Code for hazardous locations.
Approval of location. Containers and first stage
regulating equipment shall be located outside of buildings especially
provided for this purpose upon approval of the Fire Chief or his or
her designee, provided, however, that containers and regulating equipment
may be indoors under the following conditions:
A. If temporarily used for demonstration purposes and
the container has a maximum water capacity of 12 pounds.
B. If used with completely self-contained gas hand torch
or similar equipment, and the container has a maximum water capacity
of 2 1/2 pounds.
C. In industrial applications where oxygen is not required.
E. In storage awaiting use or resale in compliance with
this article.
Storage locations of LP gas shall be provided
with approved portable fire extinguishers and water spray fixed systems
for fire protection as required by the Fire Chief or his or her designee
in accordance with acceptable practices.
All permits and licenses required under the
provisions of this article shall be conspicuously displayed at the
place of use, storage and handling.