ARCHIVED - 4.5.5.5.(1)

This information has been archived because it is outdated and no longer relevant.

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats on the "Contact Us" page.

4.5.5.5.(1)


Objective	OH5 Hazardous Substances Containment
Attribution	[F04,F20-OH5] Applies to portion of Code text: “Gaskets in flanged connections shall be of a material resistant to the liquid being carried …”
Application	Application 1: Materials for gaskets in flanged connections in piping systems for flammable liquids or combustible liquids, in buildings, structures and open areas. Application 2: This also applies to: vent piping material for aboveground and underground storage tanks containing flammable liquids or combustible liquids, as stated in Sentences 4.3.5.1.(1) and 4.3.10.2.(1), materials used for piping, valves and fittings for flammable liquid and combustible liquid installations on piers and wharves [not including marine fuel dispensing stations], as stated in Sentence 4.8.4.1.(1), and piping for flammable liquids or combustible liquids at fuel dispensing stations, as stated in Sentence 4.6.6.5.(6). 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 Sentence 4.5.1.1.(2), which applies to: tubing or casings and piping for oil or gas wells, transmission pipelines, piping for vehicles, aircraft, watercraft and portable or stationary engines, piping systems in fuel dispensing stations and distilleries, and piping within the scope of the applicable provincial boiler and pressure vessel codes.
	Top of Page
Intent	Intent 1: To limit the probability that gaskets will fail under normal operating conditions or when exposed to fire, which could lead to the failure of the piping connection, which could lead to the spread of liquid, which could lead to harm to the public.
	Top of Page