Division B
Acceptable Solutions
Part 4 — Flammable and Combustible Liquids
Section 4.7. Bulk Plants
4.7.1. Scope
4.7.1.1. Application
1) 
This Section shall apply to that portion of a property where flammable liquids or combustible liquids are received in bulk quantities and are stored or handled for the purpose of being distributed.
This Section shall apply to that portion of a property where flammable liquids or combustible liquids are received in bulk quantities and are stored or handled for the purpose of being distributed.
4.7.2. Storage
4.7.2.1. Storage
1) Flammable liquids and combustible liquids shall be stored in
Flammable liquids and combustible liquids shall be stored ina) closed containers, in conformance with Article 4.7.2.4., or
b) storage tanks, in conformance with Section 4.3.
4.7.2.2. Storage Tanks
1) At bulk plant rail loading and unloading facilities, the minimum distance from a storage tank to a railway line shall be in conformance with TC General Order No. O-32, C.R.C., c1148, “Flammable Liquids Bulk Storage Regulations.”
At bulk plant rail loading and unloading facilities, the minimum distance from a storage tank to a railway line shall be in conformance with TC General Order No. O-32, C.R.C., c1148, “Flammable Liquids Bulk Storage Regulations.”4.7.2.3. Hydraulic Pressure Shock
1) Bulk storage tanks, piping, pumps, valves and associated components shall be designed, installed and
maintained to accommodate hydraulic pressure shock on the system.
Bulk storage tanks, piping, pumps, valves and associated components shall be designed, installed and
maintained to accommodate hydraulic pressure shock on the system.
4.7.2.4. Container Storage
1) Containers for flammable liquids or combustible liquids stored indoors shall be stored in conformance with Subsection 4.2.7.
Containers for flammable liquids or combustible liquids stored indoors shall be stored in conformance with Subsection 4.2.7.2) Containers for flammable liquids or combustible liquids stored outdoors shall be stored in conformance with Subsection 4.2.11., except that the distance between the piles and property lines
and the distance between piles need not apply when the containers
are stored in an area that does not present a hazard to neighbouring
property.
Containers for flammable liquids or combustible liquids stored outdoors shall be stored in conformance with Subsection 4.2.11., except that the distance between the piles and property lines
and the distance between piles need not apply when the containers
are stored in an area that does not present a hazard to neighbouring
property.
4.7.2.5. Spill Control
1) An outdoor storage area shall be designed to accommodate accidental spillage in conformance with Subsection 4.1.6.
An outdoor storage area shall be designed to accommodate accidental spillage in conformance with Subsection 4.1.6.4.7.2.6. Fencing
1) The outdoor area occupied by aboveground storage tanks, container storage, ancillary equipment and unloading facilities shall be fenced in conformance with Article 3.3.2.6.
The outdoor area occupied by aboveground storage tanks, container storage, ancillary equipment and unloading facilities shall be fenced in conformance with Article 3.3.2.6.4.7.3. Dispensing
4.7.3.1. Interconnection
1) Dispensing systems for Class I liquids shall not be interconnected with dispensing systems for Class II and IIIA liquids.
Dispensing systems for Class I liquids shall not be interconnected with dispensing systems for Class II and IIIA liquids.
4.7.3.2. Dispensing into Vehicles
1) Dispensers used by the general public to dispense flammable liquids or combustible liquids into the fuel tanks of vehicles shall not be located at a bulk plant unless separated by a fence or equivalent
barrier from the area in which the bulk storage operations are conducted.
Dispensers used by the general public to dispense flammable liquids or combustible liquids into the fuel tanks of vehicles shall not be located at a bulk plant unless separated by a fence or equivalent
barrier from the area in which the bulk storage operations are conducted.
2) Where a dispenser referred to in Sentence (1) is supplied from an aboveground storage tank
Where a dispenser referred to in Sentence (1) is supplied from an aboveground storage tanka) an automatically operated valve that is designed to open only when the dispenser is being operated shall be provided at the tank
outlet, and
b) an emergency valve shall be provided for the dispenser in conformance
with Sentence 4.6.6.3.(1).
4.7.3.3. Dispensing into Metal Containers or Tanks
1) Class I liquids shall not be dispensed into a metal container or storage tank unless it is electrically connected in conformance with Article 4.1.8.2.
Class I liquids shall not be dispensed into a metal container or storage tank unless it is electrically connected in conformance with Article 4.1.8.2.4.7.4. Loading and Unloading Facilities
(See Appendix A.)4.7.4.1. Clearances
1) At a loading or unloading facility for tank vehicles or tank cars, the horizontal distance from the fill stem to an aboveground storage tank, a building or a property line shall be not less than
At a loading or unloading facility for tank vehicles or tank cars, the horizontal distance from the fill stem to an aboveground storage tank, a building or a property line shall be not less thana) 7.5 m for Class I liquids, and
b) 4.5 m for Class II and IIIA liquids.
2) At bulk plant rail loading and unloading facilities, the minimum distance from a loading structure to a railway line shall be in conformance
with TC General Order No. O-32, C.R.C., c1148, “Flammable Liquids Bulk Storage Regulations.”
At bulk plant rail loading and unloading facilities, the minimum distance from a loading structure to a railway line shall be in conformance
with TC General Order No. O-32, C.R.C., c1148, “Flammable Liquids Bulk Storage Regulations.”3) Buildings for the shelter of personnel or pumps shall be considered a part of the loading or unloading facility.
Buildings for the shelter of personnel or pumps shall be considered a part of the loading or unloading facility.
4.7.4.2. Multi-purpose Facilities
1) When piping and pumping systems have been used for the transfer of either flammable liquids or combustible liquids at loading or unloading facilities, the system shall be cleaned of vapours before the other
class of liquid is introduced.
When piping and pumping systems have been used for the transfer of either flammable liquids or combustible liquids at loading or unloading facilities, the system shall be cleaned of vapours before the other
class of liquid is introduced.
4.7.4.3. Check Valves
1) Systems through which tank cars or tank vehicles discharge into aboveground storage tanks by means of pumps shall be provided with check valves
to prevent backflow and the inadvertent mixing of liquids.
Systems through which tank cars or tank vehicles discharge into aboveground storage tanks by means of pumps shall be provided with check valves
to prevent backflow and the inadvertent mixing of liquids.
2) Systems referred to in Sentence (1) shall be designed, installed and maintained to prevent leakage or spillage.
Systems referred to in Sentence (1) shall be designed, installed and maintained to prevent leakage or spillage.
4.7.4.4. Control Valves
1) Valves installed to control the filling of tank vehicles or tank cars shall be of the self-closing type.
Valves installed to control the filling of tank vehicles or tank cars shall be of the self-closing type. 2) Control valves referred to in Sentence (1) shall be held open manually, except where automatic devices are provided for shutting off the flow in order to prevent
the overfilling of tank vehicle or tank car compartments. (See Appendix A.)
Control valves referred to in Sentence (1) shall be held open manually, except where automatic devices are provided for shutting off the flow in order to prevent
the overfilling of tank vehicle or tank car compartments. (See Appendix A.) 4.7.4.5. Bonding and Grounding
(See Appendix A.)1) Bonding, grounding and isolation components for protection against static charges during the loading or unloading of tank vehicles or tank cars shall be provided when transferring flammable liquids or combustible liquids.
Bonding, grounding and isolation components for protection against static charges during the loading or unloading of tank vehicles or tank cars shall be provided when transferring flammable liquids or combustible liquids. 2) Where flammable liquids or combustible liquids are transferred from or into railway tank cars, the railway tracks shall be bonded throughout
their length and permanently grounded in conformance with TC SOR/82-1015, “Railway Prevention of Electric Sparks Regulations.”
Where flammable liquids or combustible liquids are transferred from or into railway tank cars, the railway tracks shall be bonded throughout
their length and permanently grounded in conformance with TC SOR/82-1015, “Railway Prevention of Electric Sparks Regulations.”3) Bonding required in Sentence (1) shall consist of a metallic bond wire connected to the fill stem or to some
part of the loading or unloading structure that is in electrical contact
with the fill stem in conformance with Subsection 4.1.4.
Bonding required in Sentence (1) shall consist of a metallic bond wire connected to the fill stem or to some
part of the loading or unloading structure that is in electrical contact
with the fill stem in conformance with Subsection 4.1.4.4) Bonding wires for tank vehicles shall be provided with a pull-off connector attached so as to be in electrical contact with the cargo tank of the tank vehicle.
Bonding wires for tank vehicles shall be provided with a pull-off connector attached so as to be in electrical contact with the cargo tank of the tank vehicle. 5) The bonding connection required in Sentence (1) shall be fixed to the tank vehicle or storage tank before dome covers are raised and shall remain in place until filling is completed and
all dome covers have been closed and secured.
The bonding connection required in Sentence (1) shall be fixed to the tank vehicle or storage tank before dome covers are raised and shall remain in place until filling is completed and
all dome covers have been closed and secured.
4.7.4.6. Downspouts
1) Except as provided in Sentence 4.1.8.2.(3), when tank vehicles or tank cars are filled with Class I or II liquids through the top of the tank, the fill pipe shall
terminate within 150 mm of the bottom of the tank.
Except as provided in Sentence 4.1.8.2.(3), when tank vehicles or tank cars are filled with Class I or II liquids through the top of the tank, the fill pipe shall
terminate within 150 mm of the bottom of the tank.
4.7.5. Fire Protection
4.7.5.1. Portable Extinguishers
1) At least 2 portable extinguishers, each having a rating of not less than 80-B:C, shall be provided at hazardous locations
in bulk storage plants for flammable liquids and combustible liquids.
At least 2 portable extinguishers, each having a rating of not less than 80-B:C, shall be provided at hazardous locations
in bulk storage plants for flammable liquids and combustible liquids. 4.7.6. Spill Control
4.7.6.1. Spill Control
1) Facilities to control possible spills of flammable liquids or combustible liquids shall be provided at loading and unloading points, in conformance with Subsection 4.1.6.
Facilities to control possible spills of flammable liquids or combustible liquids shall be provided at loading and unloading points, in conformance with Subsection 4.1.6.