90.20 Standard under periodical review Jul 15, 2024
ISO
ISO/TC 21/SC 8 Gaseous media and firefighting systems using gas
International Standard
13.220.10 Fire-fighting
This document contains specific requirements for gaseous fire-extinguishing systems, with respect to the HFC 23 extinguishant. It includes details of physical properties, specifications, usage and safety aspects. It is applicable to systems operating at a nominal pressure of 41 bar without nitrogen superpressurization and 70 bar superpressurized with nitrogen.
WITHDRAWN
ISO 14520-10:2016
PUBLISHED
ISO 14520-10:2019
90.20
Standard under periodical review
Jul 15, 2024