ISO 14520-10:2005 pdf download.Gaseous fire-extinguishing systems —Physical properties and system design -Part 10: HFC 23 extinguishant.
This part of ISO 14520 gives specific requirements for gaseous fire-extinguishing systems, with respect to the HFC 23 extinguishant. It includes details of physical properties, specification. usage and safety aspects and is applicable to systems operating at a nominal pressure of 41 bar without nitrogen superpressurization. This does not preclude the use of other systems.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies
ISO 14520-1:— 1), Gaseous tire-extinguishing systems — Physical properties and system design — Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14520-1 apply.
4 Characteristics and uses
4.1 General
Extinguishant HFC 23 shall comply with the specification according to Table 1.
HFC 23 is a colourless, almost odourless, electrically non-conductive gas with a density approximately
2,4 times that of air.
The physical properties are given in Table 2.
HFC 23 extinguishes fires mainly by physical means, but also by some chemical means.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies
ISO 14520-1:— 1), Gaseous tire-extinguishing systems — Physical properties and system design — Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14520-1 apply.
4 Characteristics and uses
4.1 General
Extinguishant HFC 23 shall comply with the specification according to Table 1.
HFC 23 is a colourless, almost odourless, electrically non-conductive gas with a density approximately
2,4 times that of air.
The physical properties are given in Table 2.
HFC 23 extinguishes fires mainly by physical means, but also by some chemical means.
