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Water Mist Fire Demonstration

This test scenario involved a simulated office work station under an open ceiling at 5 metres in height. A low pressure water mist fire protection system was installed above the fire. The system operated at ~12 bar pressure with 4 sealed automatically operating nozzles on a 2.5 metre spacing (providing a nominal coverage of ~5 mm/min with all 4 heads operating). The office work station scenario had been developed by BRE Global under a programme of research funded by the BRE Trust. The test protocol has been included in British Standard Draft for Development 'Fixed fire protection systems -- Industrial and commercial watermist systems -- Part 7: Tests and requirements for watermist systems for the protection of low hazard occupancies', DD 8489-7 (2011).