There were new standard  published of particular interest to the gaseous extinguishing systems members=>

BS EN 15004-5_2020 Fixed firefighting systems. Gas extinguishing systems. Physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant  

BS EN 15004-4_2020 Fixed firefighting systems. Gas extinguishing systems. Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant  

BS EN 15004-6_2020 Fixed firefighting systems. Gas extinguishing systems. Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant  

BS EN 15004-2_2020 Fixed firefighting systems. Gas extinguishing systems. Physical properties and system design of gas extinguishing systems for FK-5-1-12 extinguishant  

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