Form 72 for hydrants
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Q. What is a form 72?
A. A form 72 is a requirement from the Queensland Developement Code MP 6.1. The form 72 is used for collecting results from the testing of a hydrant system and also a requirement for the AS1851. The form 72 is for both annual and 5 yearly maintenance. It is also one of the most important documents that the QFES are after when they pay a visit.
Q Why is a form 72 required?
A. The form 72 is to be used for the purposes of proof of testing of water based fire safety installations, as required by the Queensland Development Code – Mandatory Part (MP) 6.1, which is a building assessment provision under the Building Act 1975, section 30. This form is also to be used in accordance with the ‘Fire hydrant and sprinkler system commissioning and periodic maintenance procedure’, AS1851, defined in MP 6.1 as the ‘Relevant procedure’.
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Other FAQ's
Q. What is hydrant testing?
A. Hydrant maintenance and flow testing involves performing periodic tests required as per the AS1851 section 4 and if a pump is installed, section 3. All hydrant systems shall be subjected to routine service in accordance with this section. This enables the system to perform as it was intended when first installed as per AS2419.1
Q. How often does the hydrant system require testing?
A. A hydrant system is required to be inspected every 6 months for defects, inspected and flow tested every year (annually) and system overhaul and test every 5 years (5 yearly) . These periodic testing requirements fall under the AS1851 section 4. If it is a pumped system, the pump requires monthly inspection and testing as well.
Q. What is the fire hydrant pressure and flow requirements Australia?
A. As a minimum, the flow is 10l/s and the pressure would be 150 to 200kpa. This can go up to 5l/s @ 700kpa if pumped. Then it depends on how many hydrant are required to flow simultaniously for the size of the fire compartment.
Q. What is a boosted flow test.
A. The boosted flow test that is required for a 5 yearly is when we use a pumper appliance to simulate a fire brigade pump use during a fire. We boost the system to the required boost pressure so the most disadvantaged hydrant recieves the desired flow and pressure as per AS2419.1. We collate the readings to determin the friction loss in the system.
Q. What does a 5 yearly hydrant test involve?
A. A 5 yearly hydrant test involves overhauling all hydrants and booster head. Inspection or replacement of non return valve. A boosted flow test and a hydrostatic test. Pressure gauges and isolation valves are also maintained. Issue of a form 72. See our Blog about 5 yearly testing
Q. What happens if a flow test fails?
A. If a flow test fails, either for an annual or a 5 yearly, we can investigate the reason for the failure. There is many ways to determin why the system has failed. Where a building owner/occupier becomes aware that their building does not meet the minimum requirements for water pressure required by any standard applicable under the Queensland Development Code Mandatory Part 6.1 (Maintenance of fire safety installations) the building owner/occupier should contact the Queensland Fire and Emergency Service.
Q. What does a hydrostatic pressure test involve?
A. A hydrostatic test is required after a succesful boost test has been completed. This determins the working pressure which allows us to perform the hydrostatic test to 1.5 times the working pressure. It is performed by pressurising the system of water to the intended pressure and held for 2 hours. The sytem loss is calculated and added to the form 72.
Q. Does a spring hydrant require testing?- Spring hydrant testing
A. See our Blog about street spring hydrants
Q. Non-return valve in the booster assembly. How important is it?
A. See our Blog about non return valves
Q. What is the difference between a feed hydrant and an attack hydrant
A. See our Block about feed hydrants and attack hydrants
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