NF S62-111-5:2008 Fixed firefighting systems - Gas extinguishing systems - Part 5 : physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant.
2008NF S62-111-5:2008 Fixed firefighting systems - Gas extinguishing systems - Part 5 : physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant.