EN 14972-5:2024

SLOVENSKI STANDARD
oSIST prEN 14972-5:2023
01-julij-2023
Vgrajeni gasilni sistemi - Sistemi s pršečo vodo - 5. del: Protokol preskušanja
sistemov z avtomatskimi šobami za avtomobilske garaže
Fixed firefighting systems - Water mist systems - Part 5: Test protocol for car garages for
automatic nozzle systems
Ortsfeste Brandbekämpfungsanlagen - Wassernebelsysteme - Teil 5: Prüfprotokoll für
Kfz-Garagen für automatische Düsensysteme
Installations fixes de lutte contre l’incendie - Systèmes à brouillard d’eau - Partie 5 :
Protocole d’essai des systèmes à buses automatiques pour garages automobiles
Ta slovenski standard je istoveten z: prEN 14972-5
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 14972-5:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 14972-5:2023
oSIST prEN 14972-5:2023
DRAFT
EUROPEAN STANDARD
prEN 14972-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2023
ICS 13.220.20
English Version
Fixed firefighting systems - Water mist systems - Part 5:
Test protocol for car garages for automatic nozzle systems
Ortsfeste Brandbekämpfungsanlagen -
Wassernebelsysteme - Teil 5: Prüfprotokoll für Kfz-
Garagen für automatische 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 14972-5:2023 E
worldwide for CEN national Members.

oSIST prEN 14972-5:2023
prEN 14972-5:2023 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General requirements . 4
5 Car park garages fuel package . 5
5.1 General. 5
5.2 Vehicles . 6
5.3 Conditioning of the fuel load . 6
6 Reference sprinkler requirements . 14
6.1 General. 14
6.2 Reference sprinkler tests . 14
7 Water mist system tests requirements . 14
8 Test equipment requirements . 15
9 Instrumentation requirements . 15
9.1 General. 15
9.2 Temperature. 16
9.3 Pressure . 16
9.4 Time . 16
10 Testing criteria . 16
10.1 General. 16
10.2 Fire tests . 16
10.3 Evaluation of test results . 17
11 Test report . 19

oSIST prEN 14972-5:2023
prEN 14972-5:2023 (E)
European foreword
This document (prEN 14972-5:2023) 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.
EN 14972, Fixed firefighting systems — Water mist systems, consists of the following parts:
— 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 class rooms 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 m3 for open nozzle systems;
— Part 9: Test protocol for machinery in enclosures not exceeding 260 m3 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.
NOTE This list includes standards that are in preparation and other standards might be added. For current
status of published standards refer to www.cencenelec.eu.
oSIST prEN 14972-5:2023
prEN 14972-5:2023 (E)
1 Scope
This document specifies the evaluation of the fire performance of water mist systems for non-stacking
garages, fully enclosed garages and underground garages.
This document is applicable for horizontal, solid, flat ceilings with heights of 2 m and above.
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 12259-1, Fixed firefighting systems — Components for sprinkler and water spray systems — Part 1:
Sprinklers
EN 12845, Fixed firefighting systems — Automatic sprinkler systems — Design, installation and
maintenance
EN 14972-1:2020, Fixed firefighting systems — Water mist systems — 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 terminology 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
car park garage
enclosed area intended for car park with horizontal, solid, flat ceilings with heights of 2 m and above
NOTE Automatic, stacking or non-fully enclosed are not covered by this definition.
4 General requirements
4.1 The water mist system, operating without manual intervention, shall successfully complete all
described performance fire tests for their specific applications.
4.2 The water flow shall last for 30 min. Any remaining fire shall be manually extinguished and the fire
damages shall be recorded.
4.3 System components, component locations, operating conditions and test enclosure details shall
remain unaltered throughout all of the fire tests for a given application.
4.4 All fire tests should be conducted using the manufacturer instructions in regard to nozzle
placement, spray flux, and spray duration. Sprays shall be continuous.
4.5 The test protocol is only applicable to ceiling mounted pendent and upright automatic nozzles.
4.6 The nozzles shall be located in accordance with the manufacturer’s instructions.
oSIST prEN 14972-5:2023
prEN 14972-5:2023 (E)
4.7 Water mist sprinklers thermal sensitivity shall be special or standard response as specified in
EN 12259-1.
4.8 The water supply shall be capable of supplying a flow rate and pressure according to the specific
requirements, which are based on the actual layout of the pipework installation.
5 Car park garages fuel package
5.1 General
A relatively realistic car parking garages fuel package is employed in the test. As the fuel package is rather
complex, the reference testing with a prescribed sprinkler system serves also to indicate the baseline
performance at each different test facility and set-up. However, within one test series, the set of cars
(selection of car 1, car 2, and car 3) shall be as identical as practicably possible for each test (i.e. make,
type, number of doors), although car 1, car 2, and car 3 may differ from each other.
The test assembly to be provided for the tests shall comply with the following specifications and figures.
The test scenario is based on a car park garage, in which three vehicles are positioned as fire loads.
Figure 1 shows the test assembly in accordance with the requirements specified in this Clause.
The cars to be provided for testing shall have normal humidity as is achieved by indoor storage at
(20 ± 5) °C.
Dimensions in metres
Key
1 car 1 (Target)
2 car 2
3 car 3 (Target)
4 fire pan
sprinkler layout: below a sprinkler

sprinkler layout: between 4 sprinklers

Figure 1 — Assembly of fire loads and position of ignition source (side view)
oSIST prEN 14972-5:2023
prEN 14972-5:2023 (E)
5.2 Vehicles
Three vehicles of the same type of construction shall be provided for the test assembly. It is necessary to
use comparable vehicles in all tests. Especially the following parts of the vehicles used in the tests shall
be comparable:
— vehicle dimension and type of construction (notchbacks, hatchback, estate);
— position of exterior plastic parts (exterior mirrors, decorative trimming elements);
— indicators on the sides underneath the exterior mirrors;
— bumpers (material; coated/not coated);
— fixed roof without openings (e.g. sun roof);
— spare wheel in the boot;
— upholstery and floor mats on the inside of the passenger compartment.
The vehicles provided shall be complete and undamaged. For safety reasons, all vehicles used in the test
shall be prepared as follows prior to testing:
— all operating fluids, such as petrol or brake fluids, shall be discharged;
— the cap of the petrol tank shall be removed;
— the gas-filled shock absorbers in the boot lid shall be removed;
— airbags (where applicable) shall be removed;
— all tyres shall be depressurised (remove valve) and the vehicles shall be supported in order to ensure
that the distance between the vehicle and the top of the floor remains the same during testing.
5.3 Conditioning of the fuel load
Ignition source shall be a fire pan, which shall be positioned under car 2 in accordance to Figure 2. The
fire pa
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