Reference number
ISO 14520-9:2019
© ISO 2025
International Standard
ISO 14520-9:2019
Gaseous fire-extinguishing systems — Physical properties and system design — Part 9: HFC 227ea extinguishant
Edition 4
2019-07
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Published (Edition 4, 2019)
This publication was last reviewed and confirmed in 2025. Therefore this version remains current.

ISO 14520-9:2019

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Format
CHF 65
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Abstract

This document contains specific requirements for gaseous fire-extinguishing systems, with respect to the HFC 227ea extinguishant. It includes details of physical properties, specifications, usage and safety aspects.

This document is applicable to systems operating at nominal pressures of 25 bar, 42 bar and 50 bar with nitrogen propellant. This does not preclude the use of other systems.

General information

  • Status
     : Published
    Publication date
     : 2019-07
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 4
    Number of pages
     : 11
  • Technical Committee :
    ISO/TC 21/SC 8
    ICS :
    13.220.10 
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