9.33.4.7.(1)

Objective

OS3 Safety in Use

Attribution

Intent

Intent 1:

To limit the probability of:

  • the inadequate performance or failure of mechanical equipment, ducting or piping, or
  • rupture or leakage at joints in chimneys or vents.

This is to limit the probability of the entry of carbon monoxide gas into living space, which could lead to the acute poisoning or asphyxiation of persons.

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