The new UNE-EN 14972-4:2024 specifies the evaluation of the fire performance of water mist systems for lightly loaded non-storage, such as offices, schools, hospitals and hotels.
This standard is applicable to ceiling mounted and sidewall automatic nozzles to be used in restricted and/or unlimited areas.
This document is applicable for horizontal, solid, flat ceilings with heights of 2 m and above, up to the maximum tested ceiling height.
This standard has four reference standards, which are essential for its correct implementation:
- UNE-EN ISO 636:2017. Welding consumables.
- UNE-EN 13501-1:2019. Classification according to the behaviour of construction products and building elements in relation to fire.
- UNE-EN 14972-1:2021. Fixed fire extinguishing systems. Nebulised water systems.
- ISO 5660-1:2015. Reaction-to-fire tests. Heat release, smoke production and mass loss rate.
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