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9.21.3.1.(1) | Application | Intent |
| OS2 | OH1 | OS1 | OS3 | OP1 |
| Objective | OS3 Safety in Use |
| Attribution | |
| Application | Application 1: Liner materials 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 the direct exposure of chimney
components to corrosive flue gases and condensates, and extreme fluctuations
in temperature, will lead to the premature failure of chimney liners, which
could lead to 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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