Annual fire hydrant flow testing is a requirement of AS1851-2012. The purpose of the test is to verify number of fire hydrant outlets required to discharge simultaneously according to building classification and floor area can meet or exceed the design flow rate.
Flow testing of a street hydrant is required to establish base line data to determine whether the flow from town mains is capable of meeting or exceedeing the design flow rate of any propoesed development.
Where an in-ground fire hydrant is required to provide a discharge equal or greater than 20 L/sec, this flow is achieved from a twin outlet standpipe.
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