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9.10.9.6.(7)
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Application
Application 1: 
Combustible water distribution piping that has an outside diameter not more than 30 mm partly or wholly penetrating a vertical fire separation that is required to have a fire-resistance rating, where such piping is sealed in conformance with Clause 3.1.9.1.(1)(b).
This applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To exempt certain piping from the requirements of Sentence 9.10.9.6.(2) if certain conditions are met, on the basis that the piping is deemed to not contribute significantly to the growth and spread of fire.
Intent 2: 
To expand the application of Clause 3.1.9.1.(1)(b) to Part 9 buildings.
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