21/30403332 DC

This standard 21/30403332 DC BS EN ISO 21805. Guidance on design, selection and installation of vents to safeguard the structural integrity of enclosures protected by gaseous fire-extinguishing systems is classified in these ICS categories:

• 91.140.30 Ventilation and air-conditioning systems
• 13.220.10 Fire-fighting

This document provides guidance on fulfilling the requirements contained in ISO 6183:2009, 6.4.1 and 7.4.1 and ISO 14520-1:2015, 5.2.1 (h) and 5.3 (h), in respect to over and under pressurization venting and post-discharge extract.

It considers the design, selection and installation of vents to safeguard the structural integrity of enclosures protected by fixed gaseous extinguishing systems and the post-discharge venting provisions where used.