BS EN 15004-6:2020 pdf free.Fixed firefighting systems一Gas extinguishing systems.Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant. BS EN 15004-6 1 Scope This document contains specific requirements for gaseous fire-extinguishing systems, with respect to the HFC 23 extinguishant. It includes details of physical properties, specification, usage and safety aspects and is applicable to systems operating at...
BS EN 15004-4:2020 pdf free
BS EN 15004-4:2020 pdf free.Fixed firefighting systems一Gas extinguishing systems,Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant. BS EN 15004-4 This document specifies requirements for gaseous fire-extinguishing systems, with respect to the HFC 125 extinguishant. It includes details of physical properties, specification, usage and safety aspects.This document is applicable for systems operating at nominal pressures of...