BS EN 15004‑9:2017 pdf download

BS EN 15004‑9:2017 pdf download.Fixed firefighting systems – Gas extinguishing systems. 1 Scope 1.1 This document specifies requirements for gaseous fire-extinguishing systems, with respect to the IG-55 extinguishant. It includes details of physical properties, specification, usage and safety aspects. 1.2...