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This document specifies requirements and gives recommendations for the design, installation, inspection and maintenance of all types of fixed land based water mist systems. This document is intended to apply to water mist automatic nozzle systems and water mist deluge systems supplied by stand alone or pumped systems. The document covers only applications and occupancies which are covered by the fire test protocols of the EN 14972 series. Aspects of water mist associated with explosion protection and/or use within vehicles are not covered by this document. This document does not cover all legislative requirements. In certain countries specific national regulations apply and take precedence over this document. Users of this document are advised to inform themselves of the applicability or non-applicability for this document by their national responsible authorities.

This document specifies the evaluation of the fire performance of water mist systems for wet benches and other similar processing equipment.

This document specifies the requirements and describes the test methods for check valves for water mist firefighting systems. Check valves allow the passage in the direction of flow and they prevent flow in the reverse direction. This document is applicable to check valves installed in the pipework of water mist firefighting systems.