EN 14972-12:2024
(Main)Fixed firefighting systems - Water mist systems - Part 12: Test protocol for commercial deep fat cooking fryers for manually activated open nozzle systems
Fixed firefighting systems - Water mist systems - Part 12: Test protocol for commercial deep fat cooking fryers for manually activated open nozzle systems
This document specifies the evaluation of the fire fighting performance of water mist systems used for fire protection of commercial deep fat cooking fryers.
This document covers the area of the fryer and its close vicinity only and does not include surrounding areas beyond that the system is intended to cover.
This document includes protection of the cooking area, filters, exhaust hood, and duct against fires originating from the fryer.
This document covers only manually operated systems.
Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 12: Prüfprotokoll für kommerzielle Frittier- und Fettbackgeräte für manuell betätigte offene Düsensysteme
Dieses Dokument legt die Bewertung der Brandbekämpfungsleistung von Wassernebelsystemen fest, die zum Brandschutz von kommerziellen Frittier- und Fettbackgeräten eingesetzt werden.
Dieses Dokument bezieht sich nur auf den Bereich des Frittiergeräts und seine unmittelbare Umgebung und umfasst nicht die umliegenden Bereiche, für die das System nicht ausgelegt ist.
Dieses Dokument umfasst den Schutz des Kochbereichs, der Abscheider, der Abzugshaube und des Kanals vor Bränden, die von dem Frittiergerät ausgehen.
Dieses Dokument deckt nur manuell betriebene Systeme ab.
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 12 : Protocole d'essai des systèmes à buses ouvertes pour friteuses à usage collectif
Le présent document spécifie l’évaluation de la performance au feu des systèmes à brouillard d’eau utilisés pour la protection incendie des friteuses à usage collectif.
Le présent document couvre uniquement la zone de la friteuse et ses environs immédiats et n’inclut pas les zones environnantes situées au-delà de la zone destinée à être couverte par le système.
Le présent document inclut la protection de la zone de cuisson, des filtres, de la hotte aspirante et du conduit contre les incendies prenant naissance dans la friteuse.
Le présent document traite uniquement des systèmes à commande manuelle.
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 12. del: Protokol preskušanja za komercialne cvrtnike za cvrtje v globoki maščobi za sistem z odprtimi šobami
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 14972-12:2023
01-april-2023
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 12. del: Protokol preskušanja za
komercialne cvrtnike za cvrtje v globoki maščobi za sistem z odprtimi šobami
Fixed firefighting systems - Water mist systems - Part 12: Test protocol for commercial
deep fat cooking fryers for open nozzle systems
Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 12: Prüfprotokoll für
kommerzielle Frittier- und Fettbackgeräte für offene Düsensysteme
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 12 :
Protocole d'essai des systèmes à buses ouvertes pour friteuses à usage collectif
Ta slovenski standard je istoveten z: prEN 14972-12
ICS:
13.220.20 Požarna zaščita Fire protection
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
oSIST prEN 14972-12:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 14972-12:2023
oSIST prEN 14972-12:2023
DRAFT
EUROPEAN STANDARD
prEN 14972-12
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2023
ICS 13.220.20
English Version
Fixed firefighting systems - Water mist systems - Part 12:
Test protocol for commercial deep fat cooking fryers for
open nozzle systems
Ortsfeste Brandbekämpfungsanlagen -
Wassernebelsysteme - Teil 12: Prüfprotokoll für
kommerzielle Frittier- und Fettbackgeräte für offene
Düsensysteme
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14972-12:2023 E
worldwide for CEN national Members.
oSIST prEN 14972-12:2023
prEN 14972-12:2023 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General requirements . 5
5 Deep fat fryer, hood and duct mock-up requirements . 5
5.1 Deep fat fryer . 5
5.2 Deep fat fryer mock-up . 6
5.3 Duct mock-up . 6
5.4 Hood mock-up . 8
6 Test equipment requirements . 8
7 Instrumentation requirements . 8
8 Testing Criteria .10
8.1 Deep fat fryer extinguishing tests .10
8.2 Deep fat fryer extinguishing splash tests .10
8.3 Deep fat fryer cooking temperature splash tests .10
8.4 Duct extinguishing tests.10
8.5 Hood extinguishing tests .10
9 Performance Tests .10
9.1 Test procedure for deep fat fryer extinguishing and extinguishing splash tests .10
9.2 Test procedure for deep fat fryer cooking temperature splash tests .11
9.3 Test procedure for duct and hood extinguishing tests .12
10 Test report .14
oSIST prEN 14972-12:2023
prEN 14972-12:2023 (E)
European foreword
This document (prEN 14972-12:2023) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This document is a working document.
The EN 14972 series, published under the general title Fixed firefighting systems — Water mist systems,
consists of the following parts. This list includes standards that are in preparation, and other standards
can be added. For the current status of published standards, refer to www.cencenelec.eu.
— Part 1: Design, installation, inspection and maintenance;
— Part 2: Test protocol for shopping areas for automatic nozzle systems;
— Part 3: Test protocol for office, school classrooms and hotel for automatic nozzle systems;
— Part 4: Test protocol for non-storage occupancies for automatic nozzle systems;
— Part 5: Test protocol for car garages for automatic nozzle systems;
— Part 6: Test protocol for false floors and false ceilings for automatic nozzle systems;
— Part 7: Test protocol for commercial low hazard occupancies for automatic nozzle systems;
— Part 8: Test protocol for machinery in enclosures exceeding 260 m for open nozzle systems;
— Part 9: Test protocol for machinery in enclosures not exceeding 260 m for open nozzle systems;
— Part 10: Test protocol for atrium protection with sidewall nozzles for open nozzle systems;
— Part 11: Test protocol for cable tunnels for open nozzle systems;
— Part 12: Test protocol for commercial deep fat cooking fryers for open nozzle systems;
— Part 13: Test protocol for wet benches and other similar processing equipment for open nozzle systems;
— Part 14: Test protocol for combustion turbines in enclosures exceeding 260 m for open nozzle systems;
— Part 15: Test protocol for combustion turbines in enclosures not exceeding 260 m for open nozzle
systems;
— Part 16: Test protocol for industrial oil cookers for open nozzle systems;
— Part 17: Test protocol for residential occupancies for automatic nozzle systems.
oSIST prEN 14972-12:2023
prEN 14972-12:2023 (E)
1 Scope
This document specifies fire and splash testing requirements for manually operated water mist systems
used for the protection of commercial deep fat fryers, hoods and ducts. This does not include
requirements for systems used for protection of surrounding areas beyond that which the water mist
system is intended to cover.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 14972-1:2020, Fixed firefighting systems - Water mist systems - Part 1: Design, installation, inspection
and maintenance
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14972-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
cooking grease
vegetable shortening incorporating an antifoaming agent
3.2
deep fat fryer
cooking appliance where the food is fried submerged in a fixed vat filled with oil exposed to an intense
radiant or convective heat source
[SOURCE: EN 17446:2021, 3.4]
3.3
discharge rate
ratio of the quantity of the extinguishing agent discharged from a nozzle to the discharge time measured
to within ±1 s
Note 1 to entry: Expressed in litres/minute.
3.4
grease filter
component of a grease vapour removal system that deflects the air and vapours passing through it in such
a manner as to result in the grease vapours concentrating, condensing, or both, for the purpose of grease
collection
oSIST prEN 14972-12:2023
prEN 14972-12:2023 (E)
3.5
hood
device part of an exhaust system that directs and captures grease and oil vapours and also the combustion
gases from a cooking appliance
[SOURCE: EN 17446:2021, 3.3]
3.6
hood plenum chamber
volume of enclosed space between the grease filters and the portion of the hood above the grease filters
in a hood and duct system
3.7
multiple-vat fryer
fryer that incorporates vats that are mechanically joined together, where each vat incorporates a
separately controlled heating source
[SOURCE: EN 17446:2021, 3.4.1]
3.8
split-vat deep fat fryer
fryer that incorporates a divided partition which splits the fryer in sections, where each split-vat fryer
incorporates a separately controlled heating source
Note 1 to entry: It may have one or several vats arranged adjoining each other.
[SOURCE: EN 17446:2021, 3.4.2]
4 General requirements
4.1 The water mist system, operating without manual intervention, shall successfully complete all
described performance tests for their specific applications. Each application shall be tested individually.
4.2 System components, component locations, operating conditions and test hall details shall remain
unaltered throughout all of the performance tests for a given application.
4.3 All fire tests should be conducted following the manufacturer’s instructions in regard to nozzle
placement, spray flux, and spray duration.
5 Deep fat fryer, hood and duct mock-up requirements
5.1 Deep fat fryer
The deep fat fryer used for the deep fat fryer tests shall be a commercially available natural gas, propane,
or electric deep fat fryer, at least 230 mm deep, having a cooking surface area as specified in the
manufacturer’s installation instructions. For a deep fat fryer with an integral drip board, or the like, the
calculated cooking area, along with the drip area, shall be as indicated in the manufacturer's installation
instructions.
Multiple-vat and split-vat deep fat fryers shall be separately tested.
NOTE On certain electric fryers, the heating elements can be damaged due to the high temperatures during the
fire testing; therefore, natural gas or propane fuelled units are commonly used for the fire tests.
oSIST prEN 14972-12:2023
prEN 14972-12:2023 (E)
The deep fat fryer shall be such that, at an ambient temperature of (21 ± 5) °C:
a) adjusting the deep fat fryer to its maximum power setting, the average value of rise in temperature
per minute when the temperature of the oil goes from (260 ± 5) °C to (315 ± 5) °C, shall not be less
than 7 °C/min;
b) adjusting the deep fat fryer to its maximum power setting and shutting it off on reaching (325 ± 5) °C,
the average value of descent of temperature per minute when the temperature of the oil goes from
(315 ± 5) °C to (260 ± 5) °C, shall not exceed 3 °C/min.
For the verification of the deep fat fryer requirements, temperatures shall be continuously recorded with
a thermocouple located at the same position as during the tests as indicated in Clause 7.
The length and width of the cooking area of the fryer being tested shall correspond to the maximum area
coverage and dimension limitations specified in the manufacturer’s installation instructions.
5.2 Deep fat fryer mock-up
Each hood and duct extinguishing test shall be conducted with a deep fat fryer mock-up as an ignition
source located under the hood directly below the duct entrance. The distance between the ignition source
and the hood entrance shall be convenient for the test installation.
The deep fat fryer mock-up shall be a pool fabricated of sheet metal at least 2 mm thick, having a surface
area of at least 0,35 m and depth of at least 230 mm. Alternatively, a deep fat fryer as specified in 5.1
may be used.
5.3 Duct mock-up
The shape of the duct shall be rectangular. The extinguishing system may be used in a round duct having
...
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