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9.10.9.7.(5)
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Application
Application 1: 
Combustible drain, waste and vent piping located on one side of a vertical fire separation, where the piping is not located in a vertical shaft.
This applies to 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 combustible piping for central vacuum systems, as stated in Sentence 9.10.9.6.(9).
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Intent
Intent 1: 
To exempt certain combustible piping from the requirements of Sentence 9.10.9.7.(1) if certain conditions are met, on the basis that the imposed conditions limit the probability of the spread of fire and smoke.
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