UNE-EN 15004-4:2021
Fixed firefighting systems - Gas extinguishing systems - Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant (ISO 14520-8:2019, modified)

Standard No.

UNE-EN 15004-4:2021

Release Date

2021

Published By

ES-UNE

Latest

UNE-EN 15004-4:2021

UNE-EN 15004-4:2021 history

• 2021 UNE-EN 15004-4:2021 Fixed firefighting systems - Gas extinguishing systems - Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant (ISO 14520-8:2019, modified)
• 2009 UNE-EN 15004-4:2009 Fixed firefighting systems - Gas extinguishing systems - Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant (ISO 14520-8:2006, modified)