SECTION 4.2  CONTAINER STORAGE AND HANDLING

Subsection 4.2.1.  Application

Application

4.2.1.1.  (1)  Except as provided in Sentence (2), this Section applies to the storage, handling and use of flammable liquids or combustible liquids in

(a)   containers conforming to Clauses 4.2.3.1.(1)(a) to (d) having a capacity of not more than 230 L,
(b)   portable tanks conforming to Clause 4.2.3.1.(1)(e) having an individual capacity of not more than 2500 L, or
(c)   intermediate bulk containers conforming to Clause 4.2.3.1.(1)(a) having an individual capacity of not more than 3000 L.

    (2)  Except as otherwise stated in this Part, this Section does not apply to

(a)   properties subject to Section 4.6, refineries subject to Section 4.8 and distilleries subject to Section 4.9,
(b)   liquids in the fuel tank of motors or engines,
(c)   distilled beverage alcohol in closed containers that are stored in accordance with Part 3 of Division B of NRC, “National Fire Code of Canada”,
(d)   food and pharmaceutical products that are stored in closed containers with a capacity of not more than 5 L,
(e)   alcohol-based hand sanitizer products that have a capacity of not more than 1.2 L and that are in use, or
(f)   products that contain no more than 50% by volume of water-miscible flammable liquids or combustible liquids, with the remainder of the solution being non-flammable, that are stored in closed containers with a capacity of not more than 5 L.

    (3)  Portable tanks having a capacity greater than 2500 L shall be installed in conformance with Section 4.3.

(4)  For the purpose of this Section, unstable liquids shall meet the requirements for Class IA liquids.

(5)  Except as otherwise stated, requirements for containers in this Part shall also apply to portable tanks described in Sentence (1).

Subsection 4.2.2.  General

Storage locations

4.2.2.1.  (1)  Flammable liquids or combustible liquids shall not be stored in or adjacent to exits, including outdoors, elevators or principal routes that provide access to exits.

(2)  Where flammable liquids or combustible liquids are stored, storage shall be in conformance with Subsections 4.2.4. to 4.2.11.

Storage arrangement

4.2.2.2.  In addition to the provisions of this Section, the method of storage of flammable liquids and combustible liquids shall be determined to ensure the physical and chemical stability of the stored products.

Separation from other dangerous goods

4.2.2.3.  (1)  Except as provided in Sentence (2), flammable liquids and combustible liquids shall be separated from other dangerous goods in conformance with Sections 3.2 and 3.3 of Division B of NRC, “National Fire Code of Canada”.

(2)  For the purposes of applying Table 3.2.7.6. of Division B of NRC, “National Fire Code of Canada”, Class IIIA liquids shall be treated as Class 3 dangerous goods.

Subsection 4.2.3.  Containers and Portable Tanks

Design and construction

4.2.3.1.  (1)  Except as permitted in Article 4.2.3.3., containers and portable tanks for flammable liquids or combustible liquids shall be built in conformance with

(a)   the Transportation of Dangerous Goods Regulations (Canada),
(b)   CSA-B376, “Portable Containers for Gasoline and Other Petroleum Fuels”,
(c)   CSA-B306, “Portable Fuel Tanks for Marine Use”,
(d)   ULC/ORD-C30, “Safety Containers”, or
(e)   Section 6 of CSA-B620, “Highway Tanks and Portable Tanks for the Transportation of Dangerous Goods”.

Markings or labels

4.2.3.2.  (1)  Except as provided in Sentence (2) and Article 4.2.3.1., containers for flammable liquids or combustible liquids shall be distinctly marked or labelled in easily legible type which is in contrast to any other printed matter on the label with a warning to indicate that

(a)   the material in the container is flammable,
(b)   it should be kept away from heat, sparks and open flames, and
(c)   it should be kept closed when not in use.

(2)  Markings referred to in Sentence (1) are not required when the container is labelled in conformance with

(a)   the Transportation of Dangerous Goods Act (Canada) and its regulations,
(b)   the Hazardous Products Act (Canada) and its regulations, and
(c)   the Pest Control Products Act (Canada) and its regulations.

Other types of containers

4.2.3.3.  (1)  The storage, handling and use of flammable liquids or combustible liquids in a container other than one of those set out in Article 4.2.3.1. may be used only if

(a)   the required purity of the liquid would be affected by containers of the types set out in Article 4.2.3.1. or if the liquid would cause the excessive corrosion of those types of containers,
(b)   the container not conforming to Article 4.2.3.1. has a capacity of not more than 1 L if used for Class I liquids and not more than 5 L if used for Class II or IIIA liquids, or
(c)   the container not conforming to Article 4.2.3.1. is a sample container used for quality control purposes or for testing by regulatory officials.

Subsection 4.2.4.  Assembly and Residential Occupancies

Application

4.2.4.1.  (1)  This Subsection applies to the storage and handling of flammable liquids and combustible liquids in buildings classified as assembly or residential occupancies, except that it shall not apply to nonresidential schools, universities or colleges covered in Subsection 4.2.6.

Maximum quantities

4.2.4.2.  (1)  Subject to Sentence (4) and Articles 4.2.4.5. and 4.2.4.6., the maximum quantity of flammable liquids or combustible liquids stored in a building or in a single fire compartment having a fire-resistance rating not less than 1 h shall meet the requirements of Sentences (2) and (3).

(2)  If a single class of liquid is stored in a building or in a single fire compartment having a fire-resistance rating not less than 1 h, the total quantity of liquid shall not exceed

(a)   30 L of Class I liquids,
(b)   150 L of Class II liquids, or
(c)   600 L of Class IIIA liquids.

    (3)  If two or more classes of liquid are stored in the same building or in a single fire compartment having a fire-resistance rating not less than 1 h, the total quantity of stored liquid shall meet the requirements of the following equation:

qI/30 + qII/150 + qIIIA/600 ≤ 1

where

qI   = the actual quantity of Class I liquid present, in litres,
qII   = the actual quantity of Class II liquid present, in litres, and
qIIIA  = the actual quantity of Class IIIA liquid present, in litres.

    (4)  Quantities of flammable liquids or combustible liquids exceeding those permitted by Sentence (1) are permitted if they are kept

(a)   in cabinets that comply with Subsection 4.2.10., but only if the total quantity of flammable liquids and combustible liquids stored in the cabinets does not exceed the quantity permitted for one cabinet, or
(b)   in a room that complies with Subsection 4.2.9. and has no openings that communicate directly with the public portions of the building.

Cabinet and room location

4.2.4.3.  The cabinets and rooms referred to in Sentence 4.2.4.2.(4) shall not be located above or below the first storey.

Exterior balconies

4.2.4.4.  Flammable liquids and combustible liquids shall not be stored on exterior balconies.

Storage in dwelling units

4.2.4.5.  No more than 30 L of flammable liquids and combustible liquids, of which not more than 10 L may be Class I liquids, may be stored in a dwelling unit.

Storage in attached garages or sheds

4.2.4.6.  No more than 50 L of flammable liquids and combustible liquids, of which not more than 30 L may be Class I liquids, shall be stored in a garage or shed attached to a dwelling unit.

Subsection 4.2.5.  Mercantile Occupancies

Maximum quantities

4.2.5.1.  (1)  Except as provided in Sentence (5), the quantities of flammable liquids and combustible liquids stored in mercantile occupancies shall not exceed those in Sentences (2) to (4).

(2)  In mercantile occupancies that are not sprinklered, the maximum quantity of flammable liquids and combustible liquids stored in a single suite shall be the lesser of

(a)   8 L for every 1 m² of the area of the suite, provided that not more than 2 L per m² is Class I liquid, of which not more than 0.3 L per m² shall be Class IA, Class IB, or any combination of these two classes, or
(b)   8000 L, provided that not more than 2000 L is Class I liquid, of which not more than 300 L shall be Class IA or Class IB or any combination of these two classes.

    (3)  In sprinklered mercantile occupancies, the maximum quantity of flammable liquids and combustible liquids stored in a single suite shall be the lesser of

(a)   24 L for every 1 m² of the area of the suite, provided that not more than 6 L per m² is Class I liquid, of which not more than 1 L per m² shall be Class IA or Class IB or any combination of these two classes, or
(b)   24000 L, provided that not more than 6000 L is Class I liquid, of which not more than 1000 L shall be Class IA or Class IB or any combination of these two classes.

    (4)  For the purposes of calculating permissible quantities in Sentences (2) and (3), mercantile occupancies of less than 250 m² floor area shall be assumed to be 250 m² in area.

(5)  Quantities of flammable liquids and combustible liquids in excess of those permitted in Sentences (2) to (4) shall be kept in a storage area conforming to Subsection 4.2.7.

Containers

4.2.5.2.  (1)  Flammable liquids and combustible liquids in mercantile occupancies shall be kept in closed containers.

(2)  Closed containers of Class I and II liquids shall not be stacked more than 1.5 m high on floors, or 1 m high on individual fixed shelves.

(3)  Class I liquids in closed containers are permitted to be stored in basements of mercantile occupancies.

Transfer

4.2.5.3.  (1)  Subject to Sentence (2), the transfer of flammable liquids or combustible liquids from or into containers shall take place in a storage room that complies with Subsection 4.2.9.

(2)  Sentence (1) does not apply to tinting operations for paints that involve containers of up to 25 L in capacity.

Subsection 4.2.6.  Business and Personal Services, Detention, Educational, Care, and Care and Treatment Occupancies

Application

4.2.6.1.  This Subsection applies to the storage, handling and use of flammable liquids and combustible liquids in business and personal services occupancies, care occupancies, care and treatment occupancies, detention occupancies, non-residential schools, universities and colleges.

Storage cabinets and storage rooms

4.2.6.2.  (1)  Except as permitted in Article 4.2.6.3., flammable liquids and combustible liquids shall be kept in closed containers and stored

(a)   in cabinets conforming to Subsection 4.2.10., except that the total quantity of flammable liquids and combustible liquids stored in such cabinets shall not exceed the quantity permitted for one cabinet, or
(b)   in a room having no openings communicating directly with the public portions of the building and conforming to Subsection 4.2.9.

Maximum quantities

4.2.6.3.  (1)  Except as provided in Sentence (2), the storage of flammable liquids and combustible liquids outside of a cabinet or room required in Article 4.2.6.2. is permitted, provided such storage does not exceed

(a)   10 L, including not more than 5 L of Class I liquid, in a single room, or
(b)   250 L, including no more than 60 L of Class II liquid, or 10 L of Class I liquid, in a single fire compartment having a fire-resistance rating not less than 45 min.

    (2)  In automotive shop or industrial arts areas of an educational facility, storage of up to 75 L of flammable liquids and combustible liquids, including not more than 25 L of Class I liquid, shall be permitted outside of a cabinet or room as specified in Article 4.2.6.2.

Containers

4.2.6.4.  Where individual containers with a capacity of more than 5 L are required for storage of flammable liquids or combustible liquids in a building, safety containers conforming to ULC/ORD-C30, “Safety Containers”, and of not more than 25 L capacity, shall be used.

Separation of dangerous goods

4.2.6.5.  Flammable liquids or combustible liquids stored in cabinets or rooms shall be separated from other dangerous goods in conformance with Article 4.2.2.3.

Subsection 4.2.7.  Industrial Occupancies

Application

4.2.7.1.  This Subsection applies to the storage, handling and use of flammable liquids and combustible liquids in industrial occupancies, where storage in closed containers is the principal activity.

Storage facilities

4.2.7.2.  (1)  Flammable liquids and combustible liquids shall be stored

(a)   in accordance with Subsection 4.2.8.,
(b)   in cabinets that comply with Subsection 4.2.10.,
(c)   in rooms that comply with Subsection 4.2.9., or
(d)   in storage areas that comply with Article 4.2.7.5.

Fire compartments

4.2.7.3.  Fire compartments regulated by this Subsection shall have a fire-resistance rating not less than 2 h.

Dispensing and transfer

4.2.7.4.  (1)  Except as permitted in Subsection 4.2.8. and in Sentence (2), the dispensing or transfer of Class I or II liquids shall be conducted in rooms conforming to Subsection 4.2.9.

(2)  It is permitted to dispense or transfer Class I or II liquids in a storage area conforming to Article 4.2.7.5. provided

(a)   the storage area does not exceed 100 m², and
(b)   the dispensing or transfer operations conform to the applicable requirements of Subsection 4.2.9.

Maximum quantities

4.2.7.5.  (1)  Except as provided in Sentence (2), the storage of flammable liquids and combustible liquids in storage areas specified in Clause 4.2.7.2.(1)(d) shall

(a)   conform to Table 4.2.7.A.

(i)   where it consists of palletized or solid piled storage, or
(ii)   where stored in racks in buildings not protected in conformance with Article 4.2.7.7., or

(b)   conform to Table 4.2.7.B. where stored in racks in buildings protected in conformance with Article 4.2.7.7.

    (2)  Where a building is designed for the storage of flammable liquids or combustible liquids, there is no limit on the total quantity of storage per fire compartment provided

(a)   the building is separated from adjacent buildings by

(i)   a firewall having a fire-resistance rating of at least 4 h, or
(ii)   spatial separation in conformance with the Building Code, and

(b)   in protected rack storage, the quantities in each individual storage area do not exceed those specified in Table 4.2.7.B.

    (3)  Where containers for two or more liquids having different flash points are stored together in a single individual storage area, the maximum quantity permitted in the individual storage area shall equal that permitted for the liquid with the lowest flash point.

(4)  If two or more classes of liquids are stored in a single fire compartment, the total quantities of stored liquids shall meet the requirements of the following equation:

[qIA/QIA + qIB/QIB + qIC/QIC + qII/QII + qIIIA/QIIIA]_rack + [qIA/QIA + qIB/QIB + qIC/QIC + qII/QII + qIIIA/QIIIA]_{solid pile or pallet} ≤ 1

where

qIA, IB or IC   = the actual quantity of Class IA, IB or IC liquid present in a rack, solid pile or on pallets,
qII   = the actual quantity of Class II liquid present in a rack, solid pile or on pallets,
qIIIA   = the actual quantity of Class IIIA liquid present in a rack, solid pile or on pallets,
QIA, IB or IC   = the maximum quantity of Class IA, IB or IC liquid permitted in Table 4.2.7.A. or 4.2.7.B. for the arrangement,
QII   = the maximum quantity of Class II liquid permitted in Table 4.2.7.A. or 4.2.7.B. for the arrangement, and
QIIIA   = the maximum quantity of Class IIIA liquid permitted in Table 4.2.7.A. or 4.2.7.B. for the arrangement.

Table 4.2.7.A.

Indoor Container Storage (Palletized or Solid Piled Storage and Unprotected Rack Storage)
Forming Part of Article 4.2.7.5.

Notes to Table 4.2.7.A.:
⁽¹⁾  See Article 4.2.7.7.

TABLE 4.2.7.b.

Indoor Container Storage (Protected Rack Storage)⁽¹⁾ Forming Part of Article 4.2.7.5.

Notes to Table 4.2.7.B.:
⁽¹⁾  See Article 4.2.7.7.

Spill control

4.2.7.6.  Measures to control spilled flammable liquids or combustible liquids shall be provided in conformance with Subsection 4.1.6.

Fire suppression systems

4.2.7.7.  (1)  Where protection is required by this Part, storage areas for flammable liquids and combustible liquids shall be

(a)   sprinklered in conformance with NFPA 30, “Flammable and Combustible Liquids Code”, or
(b)   protected by an automatic special fire suppression system in conformance with an applicable standard set out in Article 6.8.1.1.

Clearances

4.2.7.8.  (1)  The clearance between the top of storage and the lowest structural members, sprinkler head deflectors or other overhead fire protection system components shall be not less than 450 mm.

(2)  A clearance of not less than 400 mm shall be maintained between stored flammable liquids and combustible liquids and walls, except that where the width of storage adjacent to the wall is not more than 1.5 m, such wall clearance is not required.

Aisles

4.2.7.9.  Except as provided in Article 4.2.7.10., main aisles, access aisles and aisles defining individual storage areas shall be in conformance with Articles 3.3.2.5. and 3.3.2.6.

Separation from other dangerous goods

4.2.7.10.  Flammable liquids and combustible liquids shall not be stored with other dangerous goods unless in conformance with Article 4.2.2.3.

Separation from combustible products

4.2.7.11.  Combustible materials, other than those used for the packaging of flammable liquids or combustible liquids, shall not be stored in the same individual storage area with such liquids.

Absorbents

4.2.7.12.  Absorbent materials shall be available in the storage area for use in clean-up of spilled flammable liquids or combustible liquids in conformance with Article 4.1.6.3.

Ventilation

4.2.7.13.  Storage areas described in Article 4.2.7.1. shall be ventilated in conformance with Subsection 4.1.7.

Subsection 4.2.8.  Incidental Use

Application

4.2.8.1.  Except as otherwise noted in this Part, this Subsection applies to industrial occupancies where the use, storage and handling of flammable liquids or combustible liquids is secondary to the principal activity.

Maximum quantities

4.2.8.2.  (1)  Except as provided in Sentences (2) and (3) and in Article 4.2.8.4., the quantity of flammable liquids and combustible liquids permitted to be located outside of storage rooms conforming to Subsection 4.2.7., 4.2.9. or 4.3.13. or cabinets conforming to Subsection 4.2.10. in any one fire compartment of a building shall not be more than

(a)   600 L of flammable liquids and combustible liquids in closed containers, of which not more than 100 L shall be Class IA liquids, and
(b)   5000 L of Class IB, IC, II and IIIA liquids in storage tanks or portable tanks.

(2)  Where required for normal plant activity, quantities of flammable liquids and combustible liquids are permitted to exceed those specified in Sentence (1), but shall not be greater than the supply for one day of normal operation.

(3)  Where larger quantities than are permitted by Sentence (1) are required, such quantities shall be in storage tanks installed in conformance with Sentence 4.3.12.4.(2).

Handling

4.2.8.3.  (1)  Areas in which flammable liquids or combustible liquids are transferred from one container or storage tank to another, or are used in such a way as to release potentially explosive concentrations of flammable vapours, shall be

(a)   separated from possible sources of ignition by a spatial separation of not less than 6 m, or by a fire separation,
(b)   provided with a drainage system to control spills in conformance with Subsection 4.1.6.,
(c)   provided with absorbent materials to assist in clean-up of small liquid spills in conformance with Article 4.1.6.3.,
(d)   provided with either natural or mechanical ventilation in conformance with Subsection 4.1.7., and
(e)   separated from other dangerous goods in conformance with Article 4.2.2.3.

General storage areas

4.2.8.4.  (1)  In a general storage area covered in Subsection 3.2.3. of Division B of NRC, “National Fire Code of Canada”, quantities of flammable liquids and combustible liquids may exceed those in Sentence 4.2.8.2.(1) if the storage area complies with Sentences (2) to (6).

(2)  The storage area referred to in Sentence (1) shall be sprinklered in conformance with Article 3.2.3.3. of Division B of NRC, “National Fire Code of Canada”, providing a level of protection not less than that required for Class IV commodities stored up to a height of 6 m.

(3)  The height of storage of flammable liquids and combustible liquids shall be not more than those permitted for unprotected storage in Table 4.2.7.A.

(4)  When a single class of liquid is stored, the total quantity in a single fire compartment shall be not more than

(a)   2500 L of Class IB and IC liquid,
(b)   5000 L of Class II liquid, or
(c)   10000 L of Class IIIA liquid.

(5)  When two or more classes of liquid are stored in the same fire compartment, the total quantities of stored liquids shall meet the requirements of the following equation:

qI/2500 + qII/5000 + qIIIA/10000 ≤ 1

where

qI   = the actual quantity of Class IB and IC liquid present,
qII   = the actual quantity of Class II liquid present, and
qIIIA  = the actual quantity of Class IIIA liquid present.

(6)  When two or more classes of liquid are stored in the same individual storage area, the maximum quantity permitted in the individual storage area shall be that permitted for the liquid with the lowest limit set out in Sentence (4).

Subsection 4.2.9.  Rooms for Container Storage and Dispensing

Maximum quantities

4.2.9.1.  (1)  Except as provided in Sentences (2) and (3), where flammable liquids and combustible liquids are stored in a room required in this Part, the storage densities averaged over the total room area and the total quantities of such liquids shall conform to Table 4.2.9.A.

(2)  The maximum quantities and densities of flammable liquids and combustible liquids shown in Table 4.2.9.A. are permitted to be doubled provided the storage room is protected by an automatic fire suppression system conforming to Article 4.2.7.7.

(3)  The maximum quantities of Class I liquids in an unprotected storage room with a fire separation having a fire-resistance rating of not less than 2 h shall

(a)   not exceed those specified for unprotected storage in Table 4.2.7.A., and
(b)   comply with Sentences 4.2.7.5.(3) and (4).

Table 4.2.9.A.

Rooms for Container Storage and Dispensing Forming Part of Article 4.2.9.1.

Spill control

4.2.9.2.  (1)  Storage rooms referred to in Article 4.2.9.1. shall be equipped with

(a)   liquid-tight seals between interior walls and the floor and a liquid-tight ramped sill at any door opening in an interior wall, and
(b)   a drain connected to a dry sump or holding tank for those occupancies that regulated under by Regulation 851 of the Revised Regulations of Ontario, 1990 (Industrial Establishments) made under the Occupational Health and Safety Act or Ontario Regulation 67/93 (Health Care and Residential Facilities) made under the Occupational Health and Safety Act.

(2)  Storage rooms referred to in Sentence (1) shall be designed to accommodate possible spills of flammable liquids and combustible liquids in conformance with Subsection 4.1.6.

Ventilation

4.2.9.3.  Storage rooms referred to in Article 4.2.9.1. shall be ventilated in conformance with Subsection 4.1.7.

Aisles

4.2.9.4.  The contents of flammable liquids and combustible liquids storage rooms referred to in Article 4.2.9.1. shall be arranged to provide aisle widths of not less than 1 m.

Dispensing

4.2.9.5.  Dispensing of flammable liquids or combustible liquids from containers having a capacity of more than 30 L shall be by pumps or through self-closing valves, designed in conformance with good engineering practice.

Explosion venting

4.2.9.6.  (1)  If Class IA or IB liquids are dispensed or stored in open containers within a storage room, the room shall be designed to prevent critical structural and mechanical damage from an internal explosion in accordance with NFPA 68, “Standard on Explosion Protection by Deflagration Venting”.

(2)  Despite Sentence (1), if Class IA liquids are stored in closed containers or Class I liquids are dispensed or stored in open containers for those occupancies or facilities that are regulated under Regulation 851 of the Revised Regulations of Ontario, 1990 (Industrial Establishments) made under the Occupational Health and Safety Act or Ontario Regulation 67/93 (Health Care and Residential Facilities) made under the Occupational Health and Safety Act, the room shall be designed to prevent critical structural and mechanical damage from an internal explosion in accordance with NFPA 68, “Standard on Explosion Protection by Deflagration Venting”.

(3)  Sentence (1) does not apply to the storage of distilled beverage alcohol.

Portable extinguishers

4.2.9.7.  Portable extinguishers shall be provided for storage rooms described in Article 4.2.9.1. in conformance with Section 6.2.

Egress doors

4.2.9.8.  (1)  This Article applies to a dispensing room in occupancies regulated under Regulation 851 of the Revised Regulations of Ontario, 1990 (Industrial Establishments) made under the Occupational Health and Safety Act or Ontario Regulation 67/93 (Health Care and Residential Facilities) made under the Occupational Health and Safety Act where the room

(a)   has an area greater than 15 m², or
(b)   has a distance of travel greater than 4.5 metres from any point in the room to an egress doorway.

(2)  A dispensing room shall be equipped with self-closing doors hinged to swing outward on their vertical axis.

(3)  A dispensing room shall be located in a floor area that has at least two exits.

(4)  A dispensing room shall have at least two egress doorways that are at least three-quarters of the maximum diagonal dimension of the room from each other.

(5)  At least one egress doorway shall be located within 23 m from any point in the dispensing room.

Subsection 4.2.10.  Cabinets for Container Storage

Containers

4.2.10.1.  Flammable liquids and combustible liquids stored in cabinets required in this Part shall be in closed containers conforming to Article 4.2.3.1.

Maximum quantity per cabinet

4.2.10.2.  No more than 500 L of flammable liquids or combustible liquids shall be stored in a cabinet.

Maximum quantity per fire compartment

4.2.10.3.  (1)  Except as provided in Sentences (2) and (3), the total quantity of flammable liquids and combustible liquids stored in cabinets in a single fire compartment shall not exceed the quantity permitted in Article 4.2.10.2. for three cabinets.

(2)  In industrial occupancies, quantities of flammable liquids and combustible liquids greater than those specified in Sentence (1) are permitted in a single fire compartment where

(a)   the total quantity stored in a group of cabinets is not more than the quantity permitted for three cabinets, and
(b)   the distance between groups of cabinets described in Clause (a) is not less than 30 m.

(3)  In care occupancies, care and treatment occupancies and detention occupancies, the total quantity of flammable liquids and combustible liquids stored in cabinets in a single fire compartment shall not exceed the quantity permitted for one cabinet.

Labelling

4.2.10.4.  Cabinets for container storage shall be labelled in conspicuous lettering to indicate that the cabinet contains flammable materials and that open flames must be kept away.

Cabinets

4.2.10.5.  (1)  Cabinets required in this Part shall

(a)   comply with ULC/ORD-C1275, “Guide for the Investigation of Storage Cabinets for Flammable Liquid Containers”,
(b)   comply with ULI 1275, “Flammable Liquid Storage Cabinets”,
(c)   be “FM APPROVED” by FM Global, or
(d)   be listed as meeting NFPA 30, “Flammable and Combustible Liquids Code”.

Ventilation

4.2.10.6.  (1)  When a cabinet required in this Part is provided with ventilation openings,

(a)   the ventilation openings shall be sealed with materials providing fire protection at least equivalent to that required for the construction of the cabinet, or
(b)   the cabinet shall be vented outdoors using vent piping providing fire protection at least equivalent to that required in Clause (a) for seals.

Subsection 4.2.11.  Outdoor Container Storage

Quantities and clearances

4.2.11.1.  (1)  Except as provided in Sentence (2), the quantities and clearances for flammable liquids and combustible liquids stored in containers in outdoor storage areas shall conform to Table 4.2.11.A.

(2)  The clearances required in Sentence (1) do not apply where not more than 5000 L of flammable liquids or combustible liquids are stored adjacent to a building on the same property, and

(a)   the building is 1 storey in building height and used primarily for the storage or handling of flammable liquids or combustible liquids, or
(b)   the exposed wall has a fire-resistance rating not less than 2 h and has no openings within 3 m of such outdoor storage.

Table 4.2.11.A.

Outdoor Container Storage Forming Part of Article 4.2.11.1.

Mixed storage

4.2.11.2.  If two or more liquids with different flash points are stored outdoors in containers that form a single pile, the maximum total quantity in the pile shall be equal to the maximum quantity permitted for the liquid with the lowest flash point.

Fire department access

4.2.11.3.  An access route not less than 6 m wide, constructed in conformance with Subsection 3.2.5. in Division B of the Building Code, shall be provided in outdoor storage areas to permit the approach of fire department vehicles to within 60 m of any part of a pile.

Spill control

4.2.11.4.  Outdoor storage areas for flammable liquids or combustible liquids shall be designed to accommodate possible spillage in conformance with Subsection 4.1.6.

Fencing

4.2.11.5.  (1)  An outdoor area used for the container storage of flammable liquids or combustible liquids shall be surrounded by a firmly anchored fence that is

(a)   substantially constructed to discourage climbing and unauthorized entry,
(b)   not less than 1.8 m high, and
(c)   provided with gates that shall be locked when the storage area is not staffed.