OFC Defined Terms
What is the definition of Flash point?
Flash point means the minimum temperature at which a liquid within a container gives off vapour in sufficient concentration to form an ignitable mixture with air near the surface of the liquid.
What date is meant by when we refer to something as existing in Part 4 of the Ontario Fire Code?
November 21,1997
Under the application of 4.2.1
Containers conforming to Clause 4.2.3.1(1)(a) shall have a capacity not more than ______
230L
Atmospheric Storage tanks shall be provided with these two types of venting
Normal and emergency
Piping for F/C liquids shall not be painted this colour?
Red
What is Vapour Pressure?
Vapour pressure means the pressure exerted by a liquid as determined by ASTM D 323
A Class IC Flammable liquid has Flash points between this range?
22.8 degrees C and 37.8 degrees C
In a dwelling unit how much flammable & combustible liquids are they allowed to store?
10L
Storage tanks supports that exceed this measurement require a 2 hour fire separation
300mm
Joints in F/C liquid piping may be of these 3 types
Welded, threaded, flanged
What is a Combustible liquid?
Combustible liquid means any liquid having a flash point at or above 37.8°C and below 93.3°C.
A fire safety plan is required when there is this amount is exceeded of Class I liquids
250L
In an industrial occupancy clearance of ____ shall be maintained between storage of F/C liquids and walls where the width of storage is greater than 1.5m
400mm
The minimum separation between a F/C Liquid storage tank and a liquefied petroleum gas cylinder shall be?
6m
Leakage testing in piping systems shall be pressure tested at pressures of not less than what.
350 kPa or 1.5 times the max operating pressure
What is a Tank Vehicle?
Tank vehicles means any vehicle, other than railroad tank cars and boats, with a cargo tank having a capacity of more than 450 L mounted or built as an integral part of the vehicle, used for the transportation of flammable or combustible liquids, and includes tank trucks, trailers and semi-trailers.
A spill control plan is required when?
4.1.6.4. (1) A spill control procedure shall be approved and implemented for any occupancy where flammable liquids or combustible liquids are stored, handled, processed or used.
If Class IA or IB liquids are dispensed or stored in open containers within a storage room the room shall be designed with this critical preventive structural member
Explosion venting/ Explosion Wall
An above ground storage tank is out of service for 150 days the valves for that tank shall be?
closed and securely locked
Heating of Piping systems shall NOT be done by this heat source
Open Flame
What is an Unstable liquid?
Unstable liquid means a liquid, including a flammable and combustible liquid, which is chemically reactive to the extent that it will vigorously react or decompose at or near normal temperature and pressure conditions or which is chemically unstable when subject to impact.
Mechanical ventilation is required when?
4.1.7.2 (1)(a) continuous mechanical ventilation where Class I liquids are processed, dispensed or used in a manner that releases flammable vapours into the room or enclosed space
In a laboratory, a separation of this fire resistance rating is required between its room and the remaining of the building
1 Hour 4.12.2.1(1)
A protected 250,000L above ground storage tank containing an unstable liquid shall be separated from a building by a distance of
7.5m
A visual inspection routine for the prompt detection of obviously abnormal conditions shall be established and shall be performed at least this often.
Once per shift