ANSI/CAN/UL/ULC 2447:2023
Scope
1.1 This Standard sets forth the minimum requirements for containment sumps, and associated sump
fittings and accessories (products) intended for below-grade, or at-grade, or above-grade use as an
enclosure for the housing of, and access to, underground piping, connector piping, and other fueling
system components (such as pumps, valves, sensors, wiring, etc.), in addition to temporary containment
of typical liquid fuels as identified in this Standard. These products are intended for use in commercial
(public) or private (fleet) automotive fueling station applications or similar fuel dispensing applications, and
in piping systems for fuel supply to generators, burners or similar equipment. Some sump fitting or sump
accessory products may be optionally evaluated for repair or replacement applications in containment
sumps that have been in service.
1.2 Containment sumps may be either primary or secondary constructions of metallic, nonmetallic or
composite materials. Typical containment sump types are:
a) Tank sumps – Sumps intended for installation above underground flammable and combustible
liquid storage tanks;
b) Dispenser sumps – Sumps intended for installation below flammable and combustible liquid
dispensing equipment;
c) Transition sumps – Sumps intended for access to liquid or vapour piping run manifolds, fittings
and valves in a fueling system; and
d) Fill/vent sumps – Sumps intended for housing of fill and/or vent pipe ends, drain valves, gauges
or monitors connected to the tank.
1.3 Sump fittings may be included as either an integral part of the containment sump, or as a fieldinstalled
kit, and may include but are not limited to the following sump applications:
a) Penetration fittings – Fittings intended for sealing pipe penetrations through the sump wall;
b) Termination fittings – Fittings intended for connecting pipe terminations at the sump wall;
c) Internal fittings – Fittings intended for connection of working components inside the sump; and
d) Test and monitor fittings – Fittings intended for periodic testing or continuous monitoring of the
sump and/or pipe.
1.4 Sump accessories may be included as either an integral part of the containment sump, or as a fieldinstalled
kit, and may include but are not limited to the following sump applications:
a) Sump covers and sump lids – Covers or lids intended to limit access to the sump with structural
and leak resistance features;
b) Sump frames – Frames intended to provide structural support of the sump walls and/or
components above or in the sump;
c) Sump brackets – Brackets intended to provide structural attachment points for components
inside the sump; and
d) Chase pipes – Soil pipes intended to provide a structural conduit for routing underground carrier
pipes for flammable and combustible liquids to and from the sump.
1.5 Containment sumps, fittings and accessories are intended for the containment of flammable and
combustible liquids under the expected use conditions and exposures that have similar chemical, physical
and material compatibility properties as represented in these requirements. Examples of these liquids
include:
a) Petroleum products, including petroleum hydrocarbon fuels with low-biofuels blends, and similar
flammable or combustible liquid petroleum derivatives, such as fuel components (cetane, hexane,
heptane), and oils (lubricating, hydraulic, machine);
b) Oxygenated fuel blends, including all “petroleum product” liquids plus petroleum hydrocarbon
fuels with low-biofuels blends;
c) Oxygenates, including all “petroleum product” and “oxygenated fuel blends” liquids plus
pure/denatured or highest oxygenated blend stocks for use in mixing of dispensed lower fuel
blends and components, such as biodiesel and ethanol; and
d) Other flammable and combustible liquids (for which the test fuels in Annex A are not considered
to be sufficient or applicable) that can be demonstrated or determined to be compatible with the
accessory materials as determined by the certifier.
1.6 Products covered by this Standard are intended to be installed and used in accordance with, but not
limited to, any of the following documents:
a) In Canada
1) National Fire Code of Canada, Part 4;
2) CSA B139 series, Installation code for oil-burning equipment;
3) CCME PN 1326, Environmental Code of Practice for Aboveground and Underground
Storage Tank Systems Containing Petroleum and Allied Petroleum Products; and
4) Regulation of the authority having jurisdiction.
b) In the United States
1) NFPA 30, Flammable and Combustible Liquids Code;
2) NFPA 30A, Code for Motor Fuel Dispensing Facilities and Garages;
3) NFPA 1, Fire Code;
4) International Fire Code published by the International Fire Council; or
5. Other Applicable Federal and State regulations for the specific product or application it is
being utilized in.
1.7 These products are factory manufactured and intended for on-site field assembly, inspection and
leak testing for the specified applications and use conditions by qualified persons in accordance with the
manufacturer's instructions and local requirements.
1.8 These products are intended to be periodically inspected and maintained for continued service, or
taken out of service if necessary by qualified persons in accordance with industry recommended practices
and/or the manufacturer's instructions.
1.9 These products have not been evaluated for use after natural disasters, fires or exposures to
chemicals not representative of the test liquids or excessive physical damage beyond the expected
assembly, installation and uses as identified in these requirements.
1.10 These products have not been evaluated for special use applications where exposed to heavy or
continuous physical abuses, excessive mechanical stresses; or environments that operate outside of the
expected atmospheric conditions and ambient use temperature range.
1.11 These requirements do not cover underground piping products which are found in UL 971, Standard
for Nonmetallic Underground Piping for Flammable Liquids, UL 971A, Outline for Investigation of Metallic
Underground Piping for Flammable Liquids, or ULC-S679, Standard for Metallic and Nonmetallic
Underground Piping for Flammable and Combustible Liquids.
1.12 These requirements do not cover connector or aboveground piping products which are found in
UL/ULC 2039, Standard for Flexible Connector Piping for Flammable and Combustible Liquids, or UL/ULC
1369, Standard for Aboveground Piping for Flammable and Combustible Liquids.
NOTE: Refer to Annex C for historic information about applicable standards.
1.13 These requirements do not cover tank accessories which are found in UL/ULC 2583, Standard for
Fuel Tank Accessories for Flammable and Combustible Liquids.
NOTE: Refer to Annex C for historic information about applicable standards.
1.14 These requirements do not cover floating docks, submerged, or shipboard marine applications.
OEN:
ULC
Langue:
English
Code(s) de l'ICS:
23.040.40;
23.040.45;
75.200
Statut:
Norme
Date de Publication:
2023-11-27
Numéro Standard:
ANSI/CAN/UL/ULC 2447:2023