ISO 14520-10:2019
Gaseous fire-extinguishing systems — Physical properties and system design — Part 10: HFC 23 extinguishant
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.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Characteristics and uses
4.1 General
4.2 Use of HFC 23 systems
5 Safety of personnel
6 System design
6.1 Fill density
6.2 Superpressurization
6.3 Extinguishant quantity
6.4 Other fill density and superpressurization levels
7 Environmental properties
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Characteristics and uses
4.1 General
4.2 Use of HFC 23 systems
5 Safety of personnel
6 System design
6.1 Fill density
6.2 Superpressurization
6.3 Extinguishant quantity
6.4 Other fill density and superpressurization levels
7 Environmental properties
Bibliography