BS 5306-9:2015 (hard copy)
BS 5306-9 discusses fire extinguishing installations and equipment on-premises. This part of the BS 5306 series brings together and updates the two parts of BS 6643, providing all recommendations for the recharging of portable fire extinguishers in a single standard.
It gives recommendations for the recharging of portable fire extinguishers and for components, gas cartridges, propellants, and refill extinguishing media for extinguishers.