SIST EN 14972-16:2019

SLOVENSKI STANDARD
SIST EN 14972-16:2019
01-oktober-2019
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 16. del: Protokol preskušanja
sistemov z odprtimi šobami za požarno zaščito industrijskih cvrtnikov
Fixed firefighting systems - Water mist systems - Part 16: Test protocol for industrial oil
cookers for open nozzle systems
Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-Löschanlagen - Teil 16:
Brandversuchsprotokoll für industrielle Großfrittieranlagen für Feinsprüh-Löschanlagen
mit offenen Düsen
Installations fixes de lutte contre l'incendie - Systèmes à brouillard d'eau - Partie 16:
Protocole d'essai des systèmes à buses ouvertes pour cuiseurs industriels
Ta slovenski standard je istoveten z: EN 14972-16:2019
ICS:
13.220.10 Gašenje požara Fire-fighting
SIST EN 14972-16:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 14972-16:2019

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SIST EN 14972-16:2019


EN 14972-16
EUROPEAN STANDARD

NORME EUROPÉENNE

August 2019
EUROPÄISCHE NORM
ICS 13.220.20
English Version

Fixed firefighting systems - Water mist systems - Part 16:
Test protocol for industrial oil cookers for open nozzle
systems
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-
à brouillard d'eau - Partie 16 : Protocole d'essai des Löschanlagen - Teil 16: Brandversuchsprotokoll für
systèmes à buses ouvertes pour friteuses industrielles industrielle Großfrittieranlagen für Feinsprüh-
Löschanlagen mit offenen Düsen
This European Standard was approved by CEN on 7 July 2019.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists 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, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14972-16:2019 E
worldwide for CEN national Members.

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SIST EN 14972-16:2019
EN 14972-16:2019 (E)
Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
4 General requirements . 6
5 Test equipment requirements . 6
6 Industrial oil cooker mock-ups requirement . 7
7 Instrumentation requirements . 11
8 Testing Criteria . 11
9 Fire Tests . 12
10 Test report . 14

2

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SIST EN 14972-16:2019
EN 14972-16:2019 (E)
European foreword
This document (EN 14972-16:2019) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2020, and conflicting national standards
shall be withdrawn at the latest by February 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
EN 14972, Fixed firefighting systems — Water mist systems, consists of the following parts:
— Part 1: Design, installation, inspection and maintenance;
1;
— Part 2: Test protocol for shopping areas for automatic nozzle systems
1;
— Part 3: Test protocol for office, school class rooms and hotel for automatic nozzle systems
1;
— Part 4: Test protocol for non-storage occupancies for automatic nozzle systems
1;
— Part 5: Test protocol for car garages for automatic nozzle systems
1;
— Part 6: Test protocol for false floors and false ceilings for automatic nozzle systems
1;
— Part 7: Test protocol for commercial low hazard occupancies for automatic nozzle systems
3 1;
— Part 8: Test protocol for machinery in enclosures exceeding 260 m for open nozzle systems
3 1;
— Part 9: Test protocol for machinery in enclosures not exceeding 260 m for open nozzle systems
1;
— Part 10: Test protocol for atrium protection with sidewall nozzles for open nozzle systems
1;
— Part 11: Test protocol for cable tunnels for open nozzle systems
1;
— 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
1;
systems
3
— Part 14: Test protocol for combustion turbines in enclosures exceeding 260 m for open nozzle
1;
systems
3
— Part 15: Test protocol for combustion turbines in enclosures not exceeding 260 m for open nozzle
1;
systems

1
Under development.
3

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SIST EN 14972-16:2019
EN 14972-16:2019 (E)
— Part 16: Test protocol for industrial oil cookers for open nozzle systems.
— Part 17: Test protocol for residential occupancies for automatic nozzle systems
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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, Turkey and the
United Kingdom.

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SIST EN 14972-16:2019
EN 14972-16:2019 (E)
1 Scope
This document specifies fire testing requirements for water mist systems used for fire protection of
industrial oil cookers. This does not include requirements for systems used for protection of other
equipment such as exhaust air ducts, heaters, heat exchangers, and food processing and food
preparation areas.
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.
2
EN 14972‑1:– , Fixed firefighting systems — Water mist systems — Design, installation, inspection and
maintenance (in preparation)
EN 60584-1:2013, Thermocouples — Part 1: EMF specifications and tolerances (IEC 60584-1:2013)
3 Terms, definitions and abbreviations
3.1 Terms and definition
2
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 http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
industrial oil cooker
non-insulated conveyorized fryers, or batch kettles, used in food processing plants
Note 1 to entry: These cookers are extremely different in size, configuration, and construction from standard
kitchen or restaurant oil cookers or fryers and require a different type of extinguishment system. Industrial oil
cookers normally have large cooking surfaces, from four and a half square meter to several hundred square
meters. They contain from several hundred litres up to approximately 20 000 l of cooking oil. Industrial oil
cookers (except for some batch kettles) typically have moveable covers, or hoods, that can be hydraulically
operated.
EXAMPLE Used for chicken, fish, potato products, fries, chips and doughnuts.
3.2 Abbreviations
AIT auto-ignition temperature

2
Under preparation. Stage at the time of publication prEN 14972-1:2019.
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EN 14972-16:2019 (E)
4 General requirements
4.1 Up to a maximum of 5 nozzles used in the fire tests shall be kept for later verification.
4.2 The water mist system, operating without manual intervention, shall successfully complete all
described performance fire tests for their specific applications.
4.3 The tests shall be conducted until the fire is extinguished, as required by the applicable fire test.
4.4 System components, component locations, operating conditions and test enclosure details shall
remain unaltered throughout all of the fire tests for a given application.
4.5 All fire tests shall be conducted using the manufacturer specifications in regard to nozzle
placement, spray flux, and spray duration. Sprays can be continuous or intermittent in time. In the case
of intermittent, or cycled, sprays, the time period during which the system is not discharging shall not
be greater than 50 % of one complete on/off cycle. The system off period shall not exceed 1 min.
4.6 The nozzles can be placed inside or outside the industrial oil cooker and shall be located in
accordance with the manufacturer’s specifications.
4.7 In case a nozzle is provided with protective caps, these shall also be used during the fire tests. If
nozzle caps are not provided, an alternative method is needed to prevent grease vapours, moisture or
other foreign matter from entering the piping and plugging the nozzle orifice.
4.8 The fire scenarios shall be conducted using cooking oil specified by the manufacturer. Commonly
used cooking oils, their flash points and AITs are listed in Table 1 for information. The test results are
only valid for water mist system with cooking oils with flash points and AITs less than or equal to the
tested oil ± 5 %. If oils with lower AIT or flash point shall be used in the field, then the test has to be
repeated with the respective new cooking oil.
Table 1 — Typically Flash points and AIT's for different cooking oils
Cooking oil Flash point AIT
°C °C
Canola 338 363
Corn 342 362
Cotton seed 334 366
Peanut 348 370
Soybean (Soya) 333 377
Sunflower 340 359
Palm 328 377
5 Test equipment requirements
5.1 The test laboratory shall be of adequate size with natural or minimal ventilation so as to not
interfere with the fire testing within the enclosure or about the mock-up or test fuel package.
5.2 The size of the test laboratory shall not impact extinguishment of any test fires (i.e. depletion of
oxygen due to an inadequately sized test laboratory).
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EN 14972-16:2019 (E)
5.3 For all fire tests, the ceiling, floor and walls shall be as dry as possible, with only ambient moisture
content allowed. The relative humidity in the test enclosure shall not significantly differ from that of the
ambient relative humidity.
5.4 The test enclosures or laboratory shall be at an ambient temperature of (20 ± 10) C prior to the
start of the test. The enclosure or hall shall be at as uniform an ambient temperature as reasonably
possible. Localized hot or cold spots are not permitted. All non-fire induced drafts shall be eliminated.
5.5 The minimum operating nozzle pressure (as specified by the manufacturer) shall be used for all
tests, unless otherwise noted. System operating pressures shall be repeatable to within ± 5 %. If the
system pressures cannot be controlled within the specified tolerance, fire tests shall be conducted at the
minimum and maximum pressure by using external means to control the system pressure.
5.6 The fire tests shall be conducted in a large open t
...