oSIST prEN 15004-2:2015

SLOVENSKI STANDARD
oSIST prEN 15004-2:2015
01-marec-2015
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Fixed firefighting systems - Gas extinguishing systems - Part 2: Physical properties and
system design of gas extinguishing systems for FK-5-1-12
Ortsfeste Brandbekämpfungsanlagen - Löschanlagen mit gasförmigen Löschmitteln -
Teil 2: Physikalische Eigenschaften und Anlagenauslegung für Feuerlöschmittel FK-5-1-
12
Installations fixes de lutte contre l’incendie - Installations d’extinction à gaz - Partie 2:
Propriétés physiques et conception des systèmes pour agent extincteur FK-5-1-12
Ta slovenski standard je istoveten z: prEN 15004-2
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
oSIST prEN 15004-2:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 15004-2:2015

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oSIST prEN 15004-2:2015

EUROPEAN STANDARD
DRAFT
prEN 15004-2
NORME EUROPÉENNE

EUROPÄISCHE NORM

December 2014
ICS 13.220.20 Will supersede EN 15004-2:2008
English Version
Fixed firefighting systems - Gas extinguishing systems - Part 2:
Physical properties and system design of gas extinguishing
systems for FK-5-1-12
Installations fixes de lutte contre l'incendie - Installations Ortsfeste Brandbekämpfungsanlagen - Löschanlagen mit
d'extinction à gaz - Partie 2: Propriétés physiques et gasförmigen Löschmitteln - Teil 2: Physikalische
conception des systèmes pour agent extincteur FK-5-1-12 Eigenschaften und Anlagenauslegung für Feuerlöschmittel
FK-5-1-12
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 191.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15004-2:2014 E
worldwide for CEN national Members.

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oSIST prEN 15004-2:2015
prEN 15004-2:2014 (E)
Contents
Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Characteristics and uses .4
4.1 General .4
4.2 Use of FK-5-1-12 systems .5
5 Safety of personnel.8
6 System Design .8
6.1 Fill density .8
6.2 Superpressurization . 10
6.3 Extinguishant quantity . 10
7 Environmental properties . 12


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oSIST prEN 15004-2:2015
prEN 15004-2:2014 (E)
Foreword
This document (prEN 15004-2:2014) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15004-2:2008.
EN 15004 consists of the following parts, under the general title Fixed firefighting systems – Gas extinguishing
systems:
 Part 1: Design, installation and maintenance”
 Part 2: Physical properties and system design of gas extinguishing systems for FK-5-1-12
extinguishant”
 Part 3: Physical properties and system design of gas extinguishing systems for HCFC Blend A
extinguishant”
 Part 4: Physical properties and system design of gas extinguishing systems for HFC 125
extinguishant”
 Part 6: Physical properties and system design of gas extinguishing systems for HFC 23
extinguishant”
 Part 7: Physical properties and system design of gas extinguishing systems for IG-01 extinguishant “
 Part 8: Physical properties and system design of gas extinguishing systems for IG-100 extinguishant”
 Part 9: Physical properties and system design of gas extinguishing systems for IG-55 extinguishant”
 Part 10: Physical properties and system design of gas extinguishing systems for IG-541
extinguishant”

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oSIST prEN 15004-2:2015
prEN 15004-2:2014 (E)
1 Scope
1.1 This part of EN 15004 contains specific requirements for gaseous fire-extinguishing systems, with respect
to FK-5-1-12 extinguishant. It includes details of physical properties, specification, usage and safety aspects.
1.2 This part of EN 15004 covers only systems operating at nominal pressures of 25 bar, 34,5 bar, 42 bar
and 50 bar with nitrogen propellant. This does not preclude the use of other systems.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 15004-1, Gaseous fire-extinguishing systems — Physical properties and system design — Part 1: General
requirements.
3 Terms and definitions
For the purposes of this part of EN 15004, the terms and definitions given in EN 15004-1 apply.

4 Characteristics and uses
4.1 General
Extinguishant FK-5-1-12 shall comply with the specification shown in Table 1.
FK-5-1-12 is a clear, colourless, almost odourless, electrically non-conductive gas with a density
approximately 11 times that of air.
The physical properties are shown in Table 2.
FK-5-1-12 extinguishes fires mainly by physical means but by some chemical means.

Table 1 — Specification for FK-5-1-12
Property Requirement
Purity 99,0 % mol/mol min.
–6
Acidity 3 x 10 by mass, max.
Water content 0,001% by mass, max.
Non-volatile residue 0,03% by mass, max.
Suspended matter or sediment None visible




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oSIST prEN 15004-2:2015
prEN 15004-2:2014 (E)
Table 2 — Physical properties of FK-5-1-12
Property Units Value
Molecular mass n/a 316,04
Boiling point at 1,013 bar (absolute) 49,2
°C
Freezing point –108,0
°C
Critical temperature 168,66
°C
Critical pressure bar 18,646
3
Critical volume cm /mol 494,5
3
Critical density kg/m 639,1
Vapour pressure 20 °C bar abs 0,3260
Liquid density 20 °C g/ml 1,616
3
Saturated vapour density 20 °C kg/m 4,3305
3
Specific volume of superheated vapour m /kg 0,0719
at 1,013 bar and 20 °C
Heat of vapourization at boiling point KJ/Kg 88,0
Chemical formula CF CF C(O)CF(CF )
3 2 3 2

Chemical name Dodecafluoro-2-methylpentan-3-one

4.2 Use of FK-5-1-12 systems
FK-5-1-12 total flooding systems may be used for extinguishing fires of all classes within the limits specified in
clause 4 of EN 15004-1.
The extinguishant requirements per volume of protected space are shown in Table 3 for various levels of
concentration. These are based on methods shown in 7.6 of EN 15004-1.
The extinguishing concentrations and design concentrations for heptane and surface class A hazards are
shown in Table 4. Concentrations for other fuels are shown in Table 5, and inerting concentrations in Table 6.



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oSIST prEN 15004-2:2015
prEN 15004-2:2014 (E)
Table 3 — FK-5-1-12 total flooding quantity
Specific 3
FK-5-1-12 mass requirements per unit volume of protected space, m/V (kg/m )
Temperature
volume
Design concent
...