Ohio Admin. Code 1301:7-7-53 - Compressed gases
(A)
Section 5301
General
(1)
5301.1 Scope. Storage, use and handling of compressed gases
in compressed gas containers, cylinders, tanks and systems shall comply with
this rule and NFPA 55 as listed in rule
1301:7-7-80
of the Administrative Code, including those gases regulated elsewhere in this
code. Partially full compressed gas containers, cylinders or tanks containing
residual gases shall be considered as full for the purposes of the controls
required.
Liquefied natural gas for use as a
vehicular fuel shall also comply with NFPA 52 and NFPA 59A as
Compressed gases classified as
Compressed hydrogen (CH2) for use as a
vehicular fuel shall also comply with rules 1301:7-7-23 and 1301:7-7-58 of the
Administrative Code, the International Fuel Gas Code and NFPA 2 as
Cutting and welding gases shall also comply with rule 1301:7-7-35 of the Administrative Code.
LP-gas shall also comply with rule
1301:7-7-61 of the Administrative Code and the International Fuel Gas Code as
Exceptions:
1.
Gases used as
refrigerants in refrigeration systems (see paragraph (F)(606) of rule
1301:7-7-06
of the Administrative Code).
2.
Compressed natural
gas (CNG) for use as a vehicular fuel shall comply with rule
1301:7-7-23
of the Administrative Code, NFPA 52 and the International Fuel Gas Code as
listed in rule
1301:7-7-80
of the Administrative Code.
3.
Cryogenic fluids
shall comply with rule
1301:7-7-55 of
the Administrative Code.
(2)
5301.2 Permits.
Permits shall be required as set forth in rule
1301:7-7-01
of the Administrative Code.
(B)
Section 5302
Definitions
(1)
5302.1 Definitions. The following terms are defined in rule
1301:7-7-02 of the
Administrative Code.
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(C)
Section 5303 General requirements
(1)
5303.1
Containers, cylinders and tanks. Compressed gas containers, cylinders and tanks
shall comply with this paragraph. Compressed gas containers, cylinders or tanks
that are not designed for refillable use shall not be refilled after use of the
original contents.
(2)
5303.2 Design and construction. Compressed gas
containers, cylinders and tanks shall be designed, fabricated, tested, marked
with the specifications of manufacture and maintained in accordance with
regulations of DOTn 49 CFR, Parts 100-185 as listed in rule
1301:7-7-80
of the Administrative Code or the ASME Boiler and Pressure Vessel Code, Section
VIII as listed in rule
1301:7-7-80
of the Administrative Code.
(3)
5303.3 Pressure
relief devices. Pressure relief devices shall be in accordance with paragraphs
(C)(3)(a)(5303.3.1) to (C)(3)(e)(5303.3.5) of this rule.
(a)
5303.3.1 Where
required. Pressure relief devices shall be provided to protect containers,
cylinders and tanks containing compressed gases from rupture in the event of
overpressure.
Exception: Cylinders, containers and
tanks where exempt from the requirements for pressure relief devices specified
by the standards of design
(b)
5303.3.2 Design. Pressure relief devices to protect
containers shall be designed and provided in accordance with CGA S- 1.1, CGA S-
1.2, CGA S- 1.3 as listed in rule
1301:7-7-80
of the Administrative Code or the ASME Boiler and Pressure Vessel Code, Section
VIII as listed in rule
1301:7-7-80
of the Administrative Code, as applicable.
(c)
5303.3.3 Sizing.
Pressure relief devices shall be sized in accordance with the specifications to
which the container was fabricated and to material specific requirements as
applicable.
(d)
5303.3.4 Arrangement. Pressure relief devices shall be
arranged to discharge upward and unobstructed to the open air in such a manner
as to prevent any impingement of escaping gas upon the container , adjacent
structures or personnel.
Exception:
(e)
5303.3.5 Freeze protection. Pressure relief devices or
vent piping shall be designed or located so that moisture cannot collect and
freeze in a manner that would interfere with the operation of the
device.
(4)
5303.4 Marking. Stationary and portable compressed gas
containers, cylinders, tanks and systems shall be marked in accordance with
paragraphs (C)(4)(a)(5303.4.1) to (C)(4)(c)(5303.4.3) of this rule.
(a)
5303.4.1
Stationary compressed gas containers, cylinders and tanks. Stationary
compressed gas containers, cylinders and tanks shall be marked with the name of
the gas and in accordance with paragraphs (C)(5)( 5003.5) and (C)(6)( 5003.6)
of rule
1301:7-7-50
of the Administrative Code. Markings shall be visible from any direction of
approach.
(b)
5303.4.2 Portable containers, cylinders and tanks.
Portable compressed gas containers, cylinders and tanks shall be marked in
accordance with CGA C-7 as listed in rule
1301:7-7-80
of the Administrative Code.
(c)
5303.4.3 Piping
systems. Piping systems shall be marked in accordance with ASME A 13.1 as
listed in rule
1301:7-7-80
of the Administrative Code. Markings used for piping systems shall consist of
the content's name and include a direction-of-flow arrow. Markings shall be
provided at each valve; at wall, floor or ceiling penetrations; at each change
of direction; and at not less than every 20 feet (6096 mm) or fraction thereof
throughout the piping run.
Exceptions:
1.
Piping that is
designed or intended to carry more than one gas at various times shall have
appropriate signs or markings posted at the manifold, along the piping and at
each point of use to provide clear identification and warning.
2.
Piping within gas
manufacturing plants, gas processing plants, refineries and similar occupancies
shall be marked in an approved manner.
(5)
5303.5 Security.
Compressed gas containers, cylinders, tanks and systems shall be secured
against accidental dislodgment and against access by unauthorized personnel in
accordance with paragraphs (C)(5)(a)(5303.5.1) to (C)(5)(c)(5303.5.3) of this
rule.
(a)
5303.5.1 Security of areas. Areas used for the storage, use and handling of
compressed gas containers, cylinders, tanks and systems shall be secured
against unauthorized entry and safeguarded in an approved
manner.
(b)
5303.5.2 Physical protection. Compressed gas
containers, cylinders, tanks and systems that could be exposed to physical
damage shall be protected. Guard posts or other approved means shall be
provided to protect compressed gas containers, cylinders, tanks and systems
indoors and outdoors from vehicular damage and shall comply with paragraph (L)
(312) of rule
1301:7-7-03
of the Administrative Code.
(c)
5303.5.3 Securing
compressed gas containers, cylinders and tanks. Compressed gas containers,
cylinders and tanks shall be secured to prevent falling caused by contact,
vibration or seismic activity. Securing of compressed gas containers, cylinders
and tanks shall be by one of the following methods:
(i)
Securing
containers, cylinders and tanks to a fixed object with one or more
restraints.
(ii)
Securing containers, cylinders and tanks on a cart or
other mobile device designed for the movement of compressed gas containers,
cylinders or tanks.
(iii)
Nesting of compressed gas containers, cylinders and
tanks at container filling or servicing facilities or in seller's warehouses
not accessible to the public. Nesting shall be allowed provided the nested
containers, cylinders or tanks, if dislodged, do not obstruct the required
means of egress .
(iv)
Securing of compressed gas containers, cylinders and
tanks to or within a rack, framework, cabinet or similar assembly designed for
such use.
Exception:
(6)
5303.6 Valve
protection. Compressed gas container , cylinder and tank valves shall be
protected from physical damage by means of protective caps, collars or similar
devices in accordance with paragraphs (C)(6)(a)(5303.6.1) and
(C)(6)(b)(5303.6.2) of this rule.
(a)
5303.6.1 Compressed gas container , cylinder or tank
protective caps or collars. Compressed gas containers, cylinders and tanks
designed for protective caps, collars or other protective devices shall have
the caps or devices in place except when the containers, cylinders or tanks are
in use or are being serviced or filled.
(b)
5303.6.2 Caps and
plugs. Compressed gas containers, cylinders and tanks designed for valve
protection caps or other protective devices shall have the caps or devices in
place. When outlet caps or plugs are installed, they shall be in place.
Exception:
(7)
5303.7 Separation from hazardous conditions. Compressed
gas containers, cylinders and tanks and systems in storage or use shall be
separated from materials and conditions that pose exposure hazards to or from
each other. Compressed gas containers, cylinders, tanks and systems in storage
or use shall be separated in accordance with paragraphs (C)(7)(a)(5303.7.1) to
(C)(7)(k)(ii)(5303.7.11.2) of this rule.
(a)
5303.7.1
Incompatible materials . Compressed gas containers, cylinders and tanks shall be
separated from each other based on the hazard class of their contents.
Compressed gas containers, cylinders and tanks shall be separated from
incompatible materials in accordance with paragraph (C)(9)(h)(5003.9.8) of rule
1301:7-7-50
of the Administrative Code.
(b)
5303.7.2
Combustible waste, vegetation and similar materials. Combustible waste,
vegetation and similar materials shall be kept not less than 10 feet (3048 mm)
from compressed gas containers, cylinders, tanks and systems. A noncombustible
partition, without openings or penetrations and extending not less than 18
inches (457 mm) above and to the sides of the storage area is allowed in lieu
of such distance. The wall shall either be an independent structure, or the
exterior wall of the building adjacent to the storage area.
(c)
5303.7.3 Ledges,
platforms and elevators. Compressed gas containers, cylinders and tanks shall
not be placed near elevators, unprotected platform ledges or other areas where
falling would result in compressed gas containers, cylinders or tanks being
allowed to drop distances exceeding one-half the height of the container ,
cylinder or tank .
(d)
5303.7.4 Temperature extremes. Compressed gas
containers, cylinders and tanks, whether full or partially full, shall not be
exposed to artificially created high temperatures exceeding 125°F (52°C) or
subambient (low) temperatures unless designed for use under the exposed
conditions.
(e)
5303.7.5 Falling objects. Compressed gas containers,
cylinders, tanks and systems shall not be placed in areas where they are
capable of being damaged by falling objects.
(f)
5303.7.6 Heating.
Compressed gas containers, cylinders and tanks, whether full or partially full,
shall not be heated by devices that could raise the surface temperature of the
container , cylinder or tank to above 125°F (52°C). Heating devices shall comply
with the mechanical code and NFPA 70 as listed in rule
1301:7-7-80
of the Administrative Code. Approved heating methods involving temperatures of
less than 125°F (52°C) are allowed to be used by trained personnel. Devices
designed to maintain individual compressed gas containers, cylinders or tanks
at constant temperature shall be approved and shall be designed to be fail
safe.
(g)
5303.7.7 Sources of ignition. Open flames and
high-temperature devices shall not be used in a manner that creates a hazardous
condition.
(h)
5303.7.8 Exposure to chemicals. Compressed gas
containers, cylinders, tanks and systems shall not be exposed to corrosive
chemicals or fumes that could damage containers, cylinders, tanks, valves or
valve-protective caps.
(i)
5303.7.9 Exhausted enclosures. Where exhausted
enclosures are provided as a means to segregate compressed gas containers,
cylinders and tanks from exposure hazards, such enclosures shall comply with
the requirements of paragraph (C)(8)(e)(5003.8.5) of rule
1301:7-7-50
of the Administrative Code.
(j)
5303.7.10 Gas
cabinets. Where gas cabinets are provided as a means to separate compressed gas
containers, cylinders and tanks from exposure hazards, such gas cabinets shall
comply with the requirements of paragraph (C)(8)(f)(5003.8.6) of rule
1301:7-7-50
of the Administrative Code.
(k)
5303.7.11 Tube
trailers. Tube trailers, including those containing compatible compressed
gases, shall be surrounded by a clear space of not less than 3 feet (914 mm) to
allow for maintenance, access and inspection.
(i)
5303.7.11.1
Individual tube trailers containing incompatible materials . Increased
separation distances between individual tube trailers containing incompatible
gases shall be provided where required by paragraph (C)(7)(a)(5303.7.1) of this
rule.
(ii)
5303.7.11.2 Connections. Piping systems used to connect
tube trailers to a user piping system shall not be viewed as an encroachment
into the 3-foot (914 mm) clear space.
(8)
5303.8 Wiring and
equipment. Electrical wiring and equipment shall comply with NFPA 70 as listed
in rule
1301:7-7-80
of the Administrative Code. Compressed gas containers, cylinders, tanks and
systems shall not be located where they could become part of an electrical
circuit. Compressed gas containers, cylinders, tanks and systems shall not be
used for electrical grounding.
(9)
5303.9 Service
and repair. Service, repair, modification or removal of valves, pressure-relief
devices or other compressed gas container , cylinder or tank appurtenances shall
be performed by trained personnel.
(10)
5303.10 Unauthorized use.
Compressed gas containers, cylinders, tanks and systems shall not be used for
any purpose other than to serve as a vessel for containing the product that it
is designed to contain.
(11)
5303.11 Exposure to fire.
Compressed gas containers, cylinders and tanks that have been exposed to fire
shall be removed from service. Containers, cylinders and tanks so removed shall
be handled by approved , qualified persons.
(12)
5303.12 Leaks, damage or
corrosion. Leaking, damaged or corroded compressed gas containers, cylinders
and tanks shall be removed from service. Leaking, damaged or corroded
compressed gas systems shall be replaced or repaired in accordance with the
following:
(a)
Compressed gas containers, cylinders and tanks that have been removed from
service shall be handled in an approved manner.
(b)
Compressed gas
systems that are determined to be leaking, damaged or corroded shall be
repaired to a serviceable condition or removed from service.
(13)
5303.13 Surface of unprotected
storage or use areas. Unless otherwise specified in paragraph (C)(14)(5303.14) of this rule,
compressed gas containers, cylinders and tanks are allowed to be stored or used
without being placed under overhead cover. To prevent bottom corrosion,
containers, cylinders and tanks shall be protected from direct contact with
soil or unimproved surfaces. The surface of the area on which the containers
are placed shall be graded to prevent accumulation of water.
(14)
5303.14 Overhead cover.
Compressed gas containers, cylinders and tanks are allowed to be stored or used
in the sun except in locations where extreme temperatures prevail. Where
extreme temperatures prevail, overhead covers shall be provided.
(15)
5303.15 Lighting. Approved
lighting by natural or artificial means shall be provided.
(16)
5303.16 Vaults. Generation,
compression, storage and dispensing equipment for compressed gases shall be
allowed to be located in either above- or below-grade vaults complying with
paragraphs (C)(16)(a)(5303.16.1) to (C)(16)(n)(5303.16.14) of this rule.
(a)
5303.16.1 Listing
required. Vaults shall be listed by a nationally recognized testing
laboratory.
Exception: Where
(b)
5303.16.2 Design
and construction. The vault shall completely enclose generation, compression,
storage or dispensing equipment located in the vault. There shall not be
openings in the vault enclosure except those necessary for vault ventilation
and access, inspection, filling, emptying or venting of equipment in the vault.
The walls and floor of the vault shall be constructed of reinforced concrete
not less than 6 inches (152 mm) thick. The top of an above-grade vault shall be
constructed of noncombustible material and shall be designed to be weaker than
the walls of the vault to ensure that the thrust of any explosion occurring
inside the vault is directed upward.
The top of an at-or below-grade vault
shall be designed to relieve safely or contain the force of an
(c)
5303.16.3
Secondary containment . Vaults shall be substantially liquid tight and there
shall not be backfill within the vault. The vault floor shall drain to a sump.
For premanufactured vaults, liquid tightness shall be certified as part of the
listing provided by a nationally recognized testing laboratory. For
field-erected vaults, liquid tightness shall be certified in an approved
manner.
(d)
5303.16.4 Internal clearance. There shall be sufficient
clearance within the vault to allow for visual inspection and maintenance of
equipment in the vault.
(e)
5303.16.5 Anchoring. Vaults and equipment contained
therein shall be suitably anchored to withstand uplifting by groundwater or
flooding. The design shall verify that uplifting is prevented even where
equipment within the vault is empty.
(f)
5303.16.6 Vehicle
impact protection. Vaults shall be resistant to damage from the impact of a
motor vehicle, or vehicle impact protection shall be provided in accordance
with paragraph (L)(312) of rule
1301:7-7-03
of the Administrative Code.
(g)
5303.16.7
Arrangement. Equipment in vaults shall be listed or approved for above-ground
use. Where multiple vaults are provided, adjacent vaults shall be allowed to
share a common wall. The common wall shall be liquid and vapor tight and shall
be designed to withstand the load imposed when the vault on either side of the
wall is filled with water.
(h)
5303.16.8
Connections. Connections shall be provided to permit the venting of each vault
to dilute, disperse and remove vapors prior to personnel entering the
vault.
(i)
5303.16.9 Ventilation . Vaults shall be provided with an
exhaust ventilation system installed in accordance with paragraph (D)(3)(
5004.3) of rule
1301:7-7-50
of the Administrative Code. The ventilation system shall operate continuously
or be designed to operate upon activation of the vapor or liquid detection
system . The system shall provide ventilation at a rate of not less than 1 cubic
foot per minute (cfm) per square foot [ 0.00508 m3/(s.m2)] of floor area, but
not less than 150 cfm (4 m3/min). The exhaust system shall be designed to
provide air movement across all parts of the vault floor for gases having a
density greater than air and across all parts of the vault ceiling for gases
having a density less than air. Supply ducts shall extend to within 3 inches
(76 mm), but not more than 12 inches (305 mm), of the floor. Exhaust ducts
shall extend to within 3 inches (76 mm), but not more than 12 inches (305 mm)
of the floor or ceiling, for heavier-than-air or lighter-than-air gases,
respectively. The exhaust system shall be installed in accordance with the
mechanical code as listed in rule
1301:7-7-80
of the Administrative Code.
(j)
5303.16.10
Monitoring and detection. Vaults shall be provided with approved vapor and
liquid detection systems and equipped with on-site audible and visual warning
devices with battery backup. Vapor detection systems shall sound an alarm when
the system detects vapors that reach or exceed 25 per cent of the lower
explosive limit (LEL) or one-half the immediately dangerous to life and health
(IDLH) concentration for the gas in the vault. Vapor detectors shall be located
not higher than 12 inches (305 mm) above the lowest point in the vault for
heavier-than-air gases and not lower than 12 inches (305 mm) below the highest
point in the vault for lighter-than-air gases. Liquid detection systems shall
sound an alarm upon detection of any liquid , including water. Liquid detectors
shall be located in accordance with the manufacturer's instructions. Activation
of either vapor or liquid detection systems shall cause a signal to be sounded
at an approved , constantly attended location within the facility served by the
tanks or at an approved location. Activation of vapor detection systems shall
also shut off gas-handling equipment in the vault and
dispensers.
(k)
5303.16.11 Liquid removal. Means shall be provided to
recover liquid from the vault. Where a pump is used to meet this requirement,
it shall not be permanently installed in the vault. Electric-powered portable
pumps shall be suitable for use in Class I , Division 1 locations, as defined in
NFPA 70 as listed in rule
1301:7-7-80
of the Administrative Code.
(l)
5303.16.12 Relief
vents. Vent pipes for equipment in the vault shall terminate not less than 12
feet (3658 mm) above ground level.
(m)
5303.16.13
Accessway. Vaults shall be provided with an approved personnel accessway with a
minimum dimension of 30 inches (762 mm) and with a permanently affixed,
nonferrous ladder. Accessways shall be designed to be nonsparking. Travel
distance from any point inside a vault to an accessway shall not exceed 20 feet
(6096 mm). At each entry point, a warning sign indicating the need for
procedures for safe entry into confined spaces shall be posted. Entry points
shall be secured against unauthorized entry and vandalism.
(n)
5303.16.14
Classified area. The interior of a vault containing a flammable gas shall be
designated a Class I , Division 1 location, as defined in NFPA 70 as listed in
rule
1301:7-7-80
of the Administrative Code.
(D)
Section 5304
Storage of compressed gases
(1)
5304.1 Upright storage. Compressed gas containers,
cylinders and tanks, except those designed for use in a horizontal position,
and all compressed gas containers, cylinders and tanks containing nonliquefied
gases, shall be stored in an upright position with the valve end up. An upright
position shall include conditions where the container , cylinder or tank axis is
inclined as much as 45 degrees ( 0.80 rad) from the vertical.
Exceptions:
1.
Compressed gas
containers with a water volume less than 1.3 gallons (5 L) are allowed to be
stored in a horizontal position.
2.
Cylinders,
containers and tanks containing nonflammable gases, or cylinders, containers
and tanks containing nonliquefied flammable gases that have been secured to a
pallet for transportation purposes.
(2)
5304.2
Material-specific regulations. In addition to the requirements of this
paragraph, indoor and outdoor storage of compressed gases shall comply with the
material-specific provisions of rule
1301:7-7-54,
rule
1301:7-7-58
and rules
1301:7-7-60
to
1301:7-7-67
of the Administrative Code.
(E)
Section 5305 Use
and handling of compressed gases
(1)
5305.1 Compressed gas systems. Compressed gas systems
shall be suitable for the use intended and shall be designed by persons
competent in such design. Compressed gas equipment, machinery and processes
shall be listed or approved .
(2)
5305.2 Controls.
Compressed gas system controls shall be designed to prevent materials from
entering or leaving process or reaction systems at other than the intended
time, rate or path. Automatic controls shall be designed to be fail
safe.
(3)
5305.3 Piping systems. Piping, including tubing,
valves, fittings and pressure regulators, shall comply with this paragraph and
rule
1301:7-7-50
of the Administrative Code. Piping, tubing, pressure regulators, valves and
other apparatus shall be kept gas tight to prevent leakage.
(4)
5305.4 Valves.
Valves utilized on compressed gas systems shall be suitable for the use
intended and shall be accessible. Valve handles or operators for required
shutoff valves shall not be removed or otherwise altered to prevent
access.
(5)
5305.5 Venting. Venting of gases shall be directed to
an approved location. Venting shall comply with the mechanical code as listed
in rule
1301:7-7-80
of the Administrative Code.
(6)
5305.6 Upright
use. Compressed gas containers, cylinders and tanks, except those designed for
use in a horizontal position, and all compressed gas containers, cylinders and
tanks containing nonliquefied gases, shall be used in an upright position with
the valve end up. An upright position shall include conditions where the
container , cylinder or tank axis is inclined as much as 45 degrees ( 0.80 rad)
from the vertical. Use of nonflammable liquefied gases in the inverted position
where the liquid phase is used shall not be prohibited provided that the
container , cylinder or tank is properly secured and the dispensing apparatus is
designed for liquefied gas use.
Exception:
(7)
5305.7 Transfer.
Transfer of gases between containers, cylinders and tanks shall be performed by
qualified personnel using equipment and operating procedures in accordance with
CGA P-1 as listed in rule
1301:7-7-80
of the Administrative Code.
Exception: The fueling of vehicles with CNG or CH2, conducted in accordance with rule 1301:7-7-23 of the Administrative Code.
(8)
5305.8 Use of
compressed gas for inflation. Inflatable equipment, devices or balloons shall
only be pressurized or filled with compressed air or inert
gases.
(9)
5305.9 Material-specific regulations. In addition to
the requirements of this paragraph, indoor and outdoor use of compressed gases
shall comply with the material-specific provisions of rule
1301:7-7-54,
rule
1301:7-7-58
and rules
1301:7-7-60
to
1301:7-7-67
of the Administrative Code.
(10)
5305.10 Handling . The handling
of compressed gas containers, cylinders and tanks shall comply with paragraphs
(E)(10)(a)(5305.10.1) and (E)(10)(b)(5305.10.2) of this rule.
(a)
5305.10.1 Carts
and" trucks. Containers, cylinders and tanks shall be moved using an approved
method. Where containers, cylinders or tanks are moved by hand cart, hand truck
or other mobile device, such carts, trucks or devices shall be designed for the
secure movement of containers, cylinders or tanks. Carts and trucks utilized
for transport of compressed gas containers, cylinders and tanks within
buildings shall comply with paragraph (C)(10)( 5003.10) of rule
1301:7-7-50
of the Administrative Code. Carts and trucks utilized for transport of
compressed gas containers, cylinders and tanks exterior to buildings shall be
designed so that the containers, cylinders and tanks will be secured against
dropping or otherwise striking against each other or other
surfaces.
(b)
5305.10.2 Lifting devices. Ropes, chains or slings
shall not be used to suspend compressed gas containers, cylinders and tanks
unless provisions at time of manufacture have been made on the container ,
cylinder or tank for appropriate lifting attachments, such as
lugs.
(F)
Section 5306 Medical gas system s
(1)
5306.1 General.
Medical gases at health care-related facilities intended for patient care,
inhalation or sedation including, but not limited to, analgesia systems for
dentistry, podiatry, veterinary and similar uses shall comply with paragraphs
(F)(2)( 5306.2) to (F)(4)( 5306.4) of this rule in addition to other
requirements of this rule.
(2)
5306.2 Interior
supply location. Medical gases shall be stored in areas dedicated to the
storage of such gases without other storage or uses. Where containers of
medical gases in quantities greater than the permit amount are located inside
buildings, they shall be in a 1-hour exterior room, a 1-hour interior room or a
gas cabinet in accordance with paragraph (F)(2)(a)(5306.2.1),
(F)(2)(b)(5306.2.2) or (F)(2)(c)(5306.2.3) of this rule, respectively. Rooms or
areas where medical gases are stored or used in quantities exceeding the
maximum allowable quantity per control area as set forth in paragraph
(C)(1)(50031) of rule
1301:7-7-50
of the Administrative Code shall be in accordance with the building code as
listed in rule
1301:7-7-80
of the Administrative Code for high hazard Group H occupancies.
(a)
5306.2.1 One-hour
exterior rooms. A 1-hour exterior room shall be a room or enclosure separated
from the remainder of the building by fire barriers constructed in accordance
with section 707 of the building code as listed in rule
1301:7-7-80
of the Administrative Code or horizontal assemblies constructed in accordance
with the building code as listed in rule
1301:7-7-80
of the Administrative Code, or both, with a fire-resistance rating of not less
than 1 hour. Openings between the room or enclosure and interior spaces shall
be self-closing smoke- and draft-control assemblies having a fire protection
rating of not less than 1 hour. Rooms shall have not less than one exterior
wall that is provided with not less than two nonclosable louvered vents. Each
vent shall have a minimum free opening area of 24 square inches (155 cm2) for each 1,000 cubic
feet (28 m3) at normal
temperature and pressure (NTP) of gas stored in the room and shall be not less
than 72 square inches (465 cm2) in aggregate free
opening area. One vent shall be within 6 inches (152 mm) of the floor and one
shall be within 6 inches (152 mm) of the ceiling. Rooms shall be provided with
not less than one automatic sprinkler to provide container cooling in case of
fire.
(b)
5306.2.2 One-hour interior room. Where an exterior wall
cannot be provided for the room, automatic sprinklers shall be installed within
the room. The room shall be exhausted through a duct to the exterior. Supply
and exhaust ducts shall be enclosed in a 1-hour-rated shaft enclosure from the
room to the exterior. Approved mechanical ventilation shall comply with the
mechanical code as listed in rule
1301:7-7-80
of the Administrative Code and be provided at a minimum rate of 1 cubic foot
per minute per square foot [ 0.00508
m3/(s.m2)]
of the area of the room.
(c)
5306.2.3 Gas cabinets. Gas cabinets shall be
constructed in accordance with paragraph (C)(8)(f)(5003.8.6) of rule
1301:7-7-50
of the Administrative Code and the following:
(i)
The average
velocity of ventilation at the face of access ports or windows shall not be
less than 200 feet per minute (1.02 m/s) with not less than 150
feet per minute ( 0.76 m/s) at any point of the access port or
window.
(ii)
They shall be connected to an exhaust
system .
(iii)
They shall be internally
sprinklered.
(3)
5306.3 Exterior
supply locations. Oxidizer medical gas systems located on the exterior of a
building with quantities greater than the permit amount shall be located in
accordance with paragraph (D)(2)(a)(6304.2.1) of rule
1301:7-7-63
of the Administrative Code.
(4)
5306.4
Transfilling. Transfilling areas and operations including, but not limited to,
ventilation and separation, shall comply with NFPA 99 as listed in rule
1301:7-7-80
of the Administrative Code.
(5)
5306.5 Medical
gas systems. Medical gas systems including, but not limited to, distribution
piping, supply manifolds, connections, pressure regulators and relief devices
and valves, shall comply with NFPA 99 as listed in rule
1301:7-7-80
of the Administrative Code and the general provisions of this rule. Existing
medical gas systems shall be maintained in accordance with the maintenance,
inspection and testing provisions of NFPA 99 as listed in rule
1301:7-7-80
of the Administrative Code for medical gas systems.
(G)
Section 5307
Carbon dioxide (CO2)
systems used in beverage dispensing applications
(1)
5307.1 General. Carbon dioxide systems
with more than 100 pounds ( 45.4 kg) of carbon dioxide used in beverage
dispensing applications shall comply with paragraphs (G)(2)( 5307.2) to
(G)(5)(b)(5307.5.2) of this rule.
(2)
5307.2 Permits.
Permits shall be required as set forth in rule
1301:7-7-01
of the Administrative Code.
(3)
5307.3 Equipment.
The storage, use and handling of liquid carbon dioxide shall be in accordance
with rule 1301:7-7-53 of the Administrative Code and the applicable
requirements of NFPA 55, Chapter 13 as listed in rule
1301:7-7-80
of the Administrative Code. Insulated liquid carbon dioxide systems shall have
pressure relief devices vented in accordance with NFPA 55 as listed in rule
1301:7-7-80
of the Administrative Code.
(4)
5307.4 Protection
from damage. Carbon dioxide systems shall be installed so that storage tanks,
cylinders, piping and fittings are protected from damage by occupants or
equipment during normal facility operations.
(5)
5307.5 Required
protection. Where carbon dioxide storage tanks, cylinders, piping and equipment
are located indoors, rooms or areas containing carbon dioxide storage tanks,
cylinders, piping and fittings and other areas where a leak of carbon dioxide
can collect shall be provided with either ventilation in accordance with
paragraph (G)(5)(a)(5307.5.1) of this rule or an emergency alarm system in
accordance with paragraph (G)(5)(b)(5307.5.2) of this rule.
(a)
5307.5.1
Ventilation . Mechanical ventilation shall be in accordance with the mechanical
code as listed in rule
1301:7-7-80
of the Administrative Code and shall comply with all of the following:
(i)
Mechanical
ventilation in the room or area shall be at a rate of not less than 1 cubic
foot per minute per square foot [ 0.00508
m3/(s.
m2)].
(ii)
Exhaust shall be taken from a point
within 12 inches (305 mm) of the floor.
(iii)
The ventilation
system shall be designed to operate at a negative pressure in relation to the
surrounding area.
(b)
5307.5.2
Emergency alarm system . An emergency alarm system shall comply with all of the
following:
(i)
Continuous gas detection shall be provided to monitor areas
where carbon dioxide can accumulate.
(ii)
The threshold
for activation of an alarm shall not exceed 5,000 parts per million (9,000
mg/m3).
(iii)
Activation of
the emergency alarm system shall initiate a local alarm within the room or area
in which the system is installed.
(H)
Section 5308 Compressed gases not otherwise regulated
(1)
5308.1 General.
Compressed gases in storage or use not regulated by material specific
provisions of rules
1301:7-7-06,
1301:7-7-54,
1301:7-7-55 and
1301:7-7-60
to
1301:7-7-67
of the Administrative Code including asphyxiant, irritant and radioactivate
gases, shall comply with this paragraph in addition to other requirements of
this rule.
(2)
5308.2 Ventilation . Indoor storage and use areas and
storage buildings shall be provided with mechanical exhaust ventilation or
natural ventilation in accordance with the requirements of paragraph (D)(3)(
5004.3) or (E)(1)(i)(5005.1.9) of rule
1301:7-7-50
of the Administrative Code. Where mechanical ventilation is provided, the
systems shall be operational during such time as the building or space is
occupied.
Replaces: 1301:7-7-30.
Notes
Promulgated Under: 119.03
Statutory Authority: 3737.22, 3737.82, 3737.83
Rule Amplifies: 3737.22, 3737.82, 3737.83
Prior Effective Dates: 07/01/1979, 06/01/1985, 06/15/1992, 07/01/1993, 09/01/1995, 03/30/1998, 01/03/2000, 09/01/2005, 07/01/2007, 11/01/2011
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