Powder Systems


  • Visual check of indications.


  • Check that all gauges and indicators are working correctly.
  • Check system (including piping and nozzles) is in its designated position and is free from damage, dirt or dust and is not leaking.
  • Check that the quantity of extinguishing medium is correct.
  • Check the fire risk and its enclosure have not changed.
  • Check all controls are properly set and accessible.
  • Check to ensure that any personnel who may have to use the equipment are properly trained and authorised to do so – in particular any new employees.


  • Clean piping with compressed air/nitrogen etc.
  • Inspect operational position of valves.
  • Ensure any protective nozzle covers are in place.
  • Inspect the quantity of expellant gas (by pressure measurement or weighing) and quantity of the powder.
  • Inspect the release mechanism.

Six Monthly

  • The system should be maintained in accordance with the manufacturer’s instructions.


  • At least annually the quality of the powder should be inspected.


  • Test all detection systems in accordance with BS5839-1.