Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
Part B4: Fire-fighting water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)

Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) B4P1: B4P1 Supply fire-fighting equipment with adequate flow and pressure

Flow rate and pressure to fire-fighting equipment and services must be adequate for it to work correctly, assessed on a minimum 95th percentile flow rate and pressure of the water supply. Deemed-to-Satisfy B4D3 to B4D5: sprinkler systems to AS 2118.1 (general), AS 2118.4 (accommodation buildings up to four storeys) or AS 2118.5 (home systems), or AS 2118.6 or FPAA101H for multi-storey buildings and buildings under 25 m effective height with Class 2 and 3 parts; hydrants to AS 2419.1; hose reels to AS 2441.

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