NF S62-111-9*NF EN 15004-9:2017 Fixed firefighting system - Gas extinguishing systems - Part 9 : physical properties and system design of gas extinguishing systems for IG-55 extinguishant
2017NF S62-111-9*NF EN 15004-9:2017 Fixed firefighting system - Gas extinguishing systems - Part 9 : physical properties and system design of gas extinguishing systems for IG-55 extinguishant