ISO 14520-5:2024

Gaseous fire-extinguishing systems — Physical properties and system design — Part 5: FK-5-1-12 extinguishant

This document contains specific requirements for gaseous fire-extinguishing systems, with respect to FK-5-1-12 extinguishant. It includes details of physical properties, specifications, usage and safety aspects. This document is applicable only to systems operating at nominal pressures of 25 bar, 34,5 bar, 42 bar and 50 bar[1] with nitrogen propellant. This does not preclude the use of other systems. [1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

Systèmes d'extinction d'incendie utilisant des agents gazeux — Propriétés physiques et conception des systèmes — Partie 5: Agent extincteur FK-5-1-12

General Information

• Status: Published
• Publication Date: 07-Jan-2024
• ICS: 13.220.10 - Fire-fighting
• Technical Committee: ISO/TC 21/SC 8 - Gaseous media and firefighting systems using gas
• Drafting Committee: ISO/TC 21/SC 8 - Gaseous media and firefighting systems using gas
• Current Stage: 6060 - International Standard published
• Start Date: 08-Jan-2024
• Due Date: 12-May-2025
• Completion Date: 08-Jan-2024

Relations

• Revises: ISO 14520-5:2019 - Gaseous fire-extinguishing systems — Physical properties and system design — Part 5: FK-5-1-12 extinguishant
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 14520-5
Fourth edition
Gaseous fire-extinguishing systems —
Physical properties and system
design —
Part 5:
FK-5-1-12 extinguishant
Systèmes d'extinction d'incendie utilisant des agents gazeux —
Propriétés physiques et conception des systèmes —
Partie 5: Agent extincteur FK-5-1-12
PROOF/ÉPREUVE
Reference number
ISO 14520-5:2023(E)
© ISO 2023

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ISO 14520-5:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
PROOF/ÉPREUVE © ISO 2023 – All rights reserved

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ISO 14520-5:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characteristics and uses. 1
4.1 General . 1
4.2 Use of FK-5-1-12 systems . 2
5 Safety of personnel .5
6 System design . 6
6.1 Fill density . 6
6.2 Superpressurization . 7
6.3 Extinguishant quantity . 7
6.4 Other fill density and superpressurization levels . 10
7 Environmental properties . .10
Bibliography .12
iii
© ISO 2023 – All rights reserved PROOF/ÉPREUVE

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ISO 14520-5:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also t
...

DRAFT INTERNATIONAL STANDARD
ISO/DISPRF 14520-5:2022(E)
ISO /TC 21/SC 8
Date: 2022-12-08
Secretariat: SA
Date: 2023-09-08
Gaseous fire -extinguishing systems — Physical properties and
system design —
Part 5:
FK-5-1-12 extinguishant
Systèmes d'extinction d'incendie utilisant des agents gazeux -- — Propriétés physiques et conception des
systèmes -- —
Partie 5: Agent extincteur FK-5-1-12
FDIS stage

---------------------- Page: 1 ----------------------
ISO/DISPRF 14520-5:20222023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
be requested from either ISO at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Fax: [phone]
Email: [e-mail]
E-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2022 – All rights reserved
ii © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DISPRF 14520-5:20222023(E)
Contents Page
Foreword . iv
Part 5: FK-5-1-12 extinguishant . 1
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characteristics and uses . 1
4.1 General . 1
4.2 Use of FK-5-1-12 systems . 2
5 Safety of personnel . 5
6 System design . 6
6.1 Fill density . 6
6.2 Superpressurization . 7
6.3 Extinguishant quantity . 7
6.4 Other fill density and superpressurization levels . 11
7 Environmental properties . 11
Bibliography . 13

Foreword iv

© ISO 2022 – All rights reserved iii
© ISO 2023 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/DISPRF 14520-5:20222023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the wor
...