ARCHIVED - 4.3.7.2.(1)

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4.3.7.2.(1)


Objective	OP1 Fire Protection of the Building or Facility
Attribution	(b) [F44-OP1.1] Applies to the base and walls of secondary containments being designed, constructed and maintained to provide the stated permeability.
Application	Application 1: Design, construction and maintenance of bases and walls of secondary spill containments for aboveground storage tanks--and portable tanks that have a capacity greater than 2 500 L [as stated in Sentence 4.2.1.1.(3)]--for flammable liquids and combustible liquids, in buildings, structures and open areas. Exceptions: except: as exempted in Sentences 4.1.1.1.(2) and (3), which apply to unique hazards at process plants, in transportation, for oil burning equipment, on farms and isolated construction projects, and the storage of aerosol products, and as stated in Sentence 4.10.1.1.(2) and provided in Subsection 4.10.3., which apply to distilled beverage alcohol at distilleries.
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Intent	Intent 1: To limit the probability of liquid seepage through the secondary containment, which could lead to the escape and spread of liquid outside of the secondary containment, which could lead to the ignition of vapour from a nearby ignition source, which could lead to damage to the building or facility.
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