OENORM EN 15004-6-2021 Fixed firefighting systems - Gas extinguishing systems - Part 6: Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant (ISO 14520-10:2019, modified)
OENORM EN 15004-6-2008-09OENORM EN 15004-6-2019-08
OENORM EN 15004-6-2021 history
2021OENORM EN 15004-6-2021 Fixed firefighting systems - Gas extinguishing systems - Part 6: Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant (ISO 14520-10:2019, modified)