NF S62-137*NF EN 12094-7:2001 Fixed firefighting systems - Components for gas extinguishing systems - Part 7 : requirements and test methods for nozzles for CO2 systems
2001NF S62-137*NF EN 12094-7:2001 Fixed firefighting systems - Components for gas extinguishing systems - Part 7 : requirements and test methods for nozzles for CO2 systems