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9.21.3.10.(1) | Application | Intent |
| OS2 | OH1 | OS3 | OS1 | OP1 |
| Objective | OS3 Safety in Use |
| Attribution | |
| Application | Application 1: Extension of chimney liners for
rectangular masonry or concrete chimneys that
are not more than 12 m in height and that serve fireplaces or appliances having a combined total rated heat output
of 120 kW or less, in buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9]. Application 2: This also applies to rectangular masonry
or concrete chimneys, in buildings to which
Part 6 applies [see Sentence 1.3.3.2.(1) of Division A for application
of Part 6], as stated in Sentence 6.3.1.2.(1). |
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| Intent | Intent 1: To limit the probability that:
This is to limit the probability of the spillage
of combustion products, which could lead to the leakage of carbon monoxide
gas into living space, which could lead to the acute poisoning or asphyxiation
of persons.
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