Unified tests procedures for the tests of EN 3-7:2004+A1:2007

This Technical Report specifies the tests procedures for some of the tests required by EN 3-7:2004+A1:2007; it does not cover all the EN 3-7:2004+A1:2007 tests but only the tests requiring more precision in their execution.
These Unified Tests Procedures are in force for all laboratories performing EN 3-7:2004+A1:2007 tests. Those laboratories should be accredited to EN ISO/IEC 17025 for EN 3-7:2004+A1:2007 tests and their accreditation shall be done by an Accreditation Body, member of the European Accreditation.
This document should be included in the list of applicable documents.
NOTE   Since results of many tests may be affected by the human factor, this document should be taken as a helpful tool but will not replace experience and knowledge of people.”

Vereinheitlichte Prüverfahren für die Prüfungen nach EN 3-7:2004+A1:2007

Dieses Dokument legt die Prüfverfahren für einige der in EN 3-7:2004+A1:2007 geforderten Prüfungen fest; es sind nicht alle Prüfungen nach EN 3-7:2004+A1:2007 behandelt, sondern nur diejenigen, die eine sorgfältigere Ausführung erfordern.
Die vereinheitlichten Prüfverfahren gelten für alle Laboratorien, die Prüfungen nach EN 3-7:2004+A1:2007 durchführen. Diese Laboratorien sollten nach EN ISO/IEC 17025 für die Durchführung der Prüfungen nach EN 3-7:2004+A1:2007 akkreditiert sein; die Akkreditierung sollte durch eine Akkreditierungsstelle erfolgen, die Mitglied der Europäischen Kooperation für Akkreditierung ist.
Das vorliegende Dokument sollte in die Liste der anwendbaren Dokumente aufgenommen werden.
ANMERKUNG   Da die Ergebnisse vieler Prüfungen durch den Faktor Mensch beeinflusst werden können, sollte dieses Dokument als hilfreiches Werkzeug angewendet werden, das jedoch nicht die Erfahrung und das Wissen von Menschen ersetzt.

Procédures d'essais unifiées pour les essais de l'EN 3-7:2004+A1:2007

Le présent Rapport Technique spécifie les modes opératoires d'essai pour certains essais prescrits par l'EN 3 7:2004+A1:2007 ; il ne couvre pas tous les essais de l'EN 3-7:2004+A1:2007, mais uniquement les essais exigeant une plus grande précision dans leur exécution.
Ces modes opératoires d'essais unifiés sont en vigueur dans tous les laboratoires réalisant les essais de l'EN 3-7:2004+A1:2007. Il convient que ces laboratoires soient accrédités EN ISO/CEI 17025 pour les essais de l'EN 3-7:2004+A1:2007 et il convient que leur accréditation soit délivrée par un organisme membre de l'Accréditation Européenne.
Il convient d'inclure le présent document dans la liste des documents applicables.
NOTE   Étant donné que les résultats de nombreux essais peuvent être affectés par le facteur humain, il convient de considérer le présent document comme un outil d'aide, mais il ne remplacera pas l'expérience et les connaissances des personnes.

Poenoteni preskusni postopki za preskušanje po EN 3-7:2004+A1:2007

Ta dokument določa preskusne postopke za nekatere preskuse, ki jih zahteva EN 3-7:2004+A1:2007; ne zajema vseh preskusov EN 3-7:2004+A1:2007, pač pa le preskuse, pri izvedbi katerih je potrebna večja natančnost.
Ti združeni preskusni postopki veljajo za vse laboratorije, ki izvajajo preskuse EN 3-7:2004+A1:2007. Ti laboratoriji morajo imeti akreditacijo EN ISO/IEC 17025 za preskuse EN 3-7:2004+A1:2007, akreditacijo pa mora podeliti akreditacijski organ, član evropske akreditacije.
Ta dokument mora biti vključen na seznam veljavnih dokumentov.
OPOMBA: Ker na rezultate številnih preskusov lahko vpliva človeški dejavnik, je treba ta dokument jemati kot koristno orodje, vendar ne nadomešča izkušenj in znanja ljudi.

General Information

Status
Published
Publication Date
15-Mar-2011
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
16-Mar-2011
Completion Date
16-Mar-2011

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SLOVENSKI STANDARD
SIST-TP CEN/TR 15642:2011
01-september-2011
1DGRPHãþD
SIST-TP CEN/TR 15642:2008
Poenoteni preskusni postopki za preskušanje po EN 3-7:2004+A1:2007
Unified tests procedures for the tests of EN 3-7:2004+A1:2007
Vereinheitlichte Prüverfahren für die Prüfungen nach EN 3-7:2004+A1:2007
Procedures d'essais unifiées pour les essais de EN 3-7:2004+A1:2007
Ta slovenski standard je istoveten z: CEN/TR 15642:2011
ICS:
13.220.10 Gašenje požara Fire-fighting
SIST-TP CEN/TR 15642:2011 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 15642:2011
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SIST-TP CEN/TR 15642:2011
TECHNICAL REPORT
CEN/TR 15642
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
March 2011
ICS 13.220.10 Supersedes CEN/TR 15642:2008
English Version
Unified tests procedures for the tests of EN 3-7:2004+A1:2007

Procédures d'essais unifiées pour les essais de l'EN 3- Vereinheitlichte Prüverfahren für die Prüfungen nach EN 3-

7:2004+A1:2007 7:2004+A1:2007

This Technical Report was approved by CEN on 17 January 2011. It has been drawn up by the Technical Committee CEN/TC 70.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15642:2011: E

worldwide for CEN national Members.
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Contents Page

Foreword .............................................................................................................................................................. 5

1 Scope ...................................................................................................................................................... 6

2 Normative references ............................................................................................................................ 6

Annex A Duration of operation and residual charge ...................................................................................... 7

A.1 General .................................................................................................................................................... 7

A.2 Scope ...................................................................................................................................................... 7

A.3 References.............................................................................................................................................. 7

A.4 Equipment .............................................................................................................................................. 7

A.5 Tests conditions – Number of tests samples ..................................................................................... 7

A.6 Test method............................................................................................................................................ 7

A.6.1 General .................................................................................................................................................... 7

A.6.2 Duration of operation ............................................................................................................................ 8

A.6.3 Residual charge ................................................................................................................................... 10

A.7 Requirements – Acceptance criteria ................................................................................................. 11

A.7.1 Minimum duration ................................................................................................................................ 11

A.7.2 Spread of measurements .................................................................................................................... 13

A.7.3 Commencement of discharge ............................................................................................................ 14

A.7.4 Residual charge ................................................................................................................................... 14

Annex B Effective range of operating temperature test ............................................................................... 15

B.1 General .................................................................................................................................................. 15

B.2 Scope .................................................................................................................................................... 15

B.3 References............................................................................................................................................ 15

B.4 Equipment ............................................................................................................................................ 15

B.5 Test conditions – number of test samples ........................................................................................ 15

B.6 Test method.......................................................................................................................................... 16

B.6.1 General .................................................................................................................................................. 16

B.6.2 Duration of operation .......................................................................................................................... 17

B.6.3 Residual charge ................................................................................................................................... 19

B.7 Requirements – acceptance criteria .................................................................................................. 19

Annex C Operation and emission control mechanism /devices and safety devices tests ....................... 20

C.1 General .................................................................................................................................................. 20

C.2 Scope .................................................................................................................................................... 20

C.3 References............................................................................................................................................ 20

C.4 Equipment ............................................................................................................................................ 20

C.5 Number of test samples – Test conditions ....................................................................................... 21

C.5.1 Number of test samples ...................................................................................................................... 21

C.5.2 Test conditions-Pre-conditioning of test samples ........................................................................... 22

C.6 Test method.......................................................................................................................................... 22

C.6.1 Principle ................................................................................................................................................ 22

C.6.2 Application of the force for the test ................................................................................................... 22

C.6.3 Devices activated by force (N)............................................................................................................ 22

C.6.4 Devices activated by energy (joule). .................................................................................................. 23

C.7 Requirements – Acceptance criteria ................................................................................................. 24

C.7.1 Operation and emission control mechanism/device ....................................................................... 24

C.7.2 Safety devices ...................................................................................................................................... 24

Annex D Control valve ..................................................................................................................................... 26

D.1 General .................................................................................................................................................. 26

D.2 Scope .................................................................................................................................................... 26

D.3 References............................................................................................................................................ 26

D.4 Equipment ............................................................................................................................................ 26

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D.5 Tests conditions – Number of tests samples .................................................................................. 26

D.6 Test method ......................................................................................................................................... 26

D.6.1 General ................................................................................................................................................. 26

D.6.2 1 kg and 2 kg powder stored pressure extinguishers .................................................................... 27

D.6.3 1 kg and 2 kg powder cartridge operated extinguishers ................................................................ 27

D.6.4 All stored pressure extinguishers excluding 1 and 2 kg powder and CO extinguishers ........... 27

D.6.5 All cartridge operated extinguishers excluding 1 and 2 kg powder .............................................. 28

D.6.6 CO extinguishers ............................................................................................................................... 28

D.7 Requirements – Acceptance criteria ................................................................................................. 29

D.7.1 For 1 kg and 2 kg powder extinguishers P3 shall not be less than 80 % of P2............................ 29

D.7.2 For all extinguishers excluding 1 kg and 2 kg powder and CO extinguishers P3 shall

not be less than 80 % of P2 or P3 shall not be less than 50 % of P1. ........................................... 29

D.7.3 For CO extinguishers M3 shall not be less than 80 % of M2 . ...................................................... 29

Annex E Hose and coupling systems tests .................................................................................................. 30

E.1 General ................................................................................................................................................. 30

E.2 Scope ................................................................................................................................................... 30

E.3 References ........................................................................................................................................... 30

E.4 Equipements ....................................................................................................................................... 30

E.5 Test conditions – Number of test samples ...................................................................................... 30

E.6 Test method ......................................................................................................................................... 31

E.6.1 Test at (20 ±± 5)°C ................................................................................................................................. 31

E.6.2 Test at (Tmax ±±±± 2)°C and at (Tmin ±±±± 2)°C .......................................................................................... 31

E.7 Requirement – Acceptance criteria ................................................................................................... 31

Annex F Resistance to extinguishing medium of extinguishers using water based media ................... 32

F.1 General ................................................................................................................................................. 32

F.2 Scope ................................................................................................................................................... 32

F.3 References ........................................................................................................................................... 32

F.4 Equipment ........................................................................................................................................... 32

F.5 Test conditions – Number of tests samples .................................................................................... 32

F.6 Test method ......................................................................................................................................... 33

F.7 Requirements – Acceptance criteria ................................................................................................. 33

Annex G Classes A and B fire tests ............................................................................................................... 34

G.1 General ................................................................................................................................................. 34

G.2 Scope ................................................................................................................................................... 34

G.3 References ........................................................................................................................................... 34

G.4 Equipment ........................................................................................................................................... 34

G.5 Test conditions – Number of test samples ...................................................................................... 35

G.5.1 General Tests Conditions .................................................................................................................. 35

G.5.2 Class A fire test ................................................................................................................................... 35

G.5.3 Class B fire tests ................................................................................................................................. 39

G.6 Test method ......................................................................................................................................... 42

G.6.1 Test procedure for Class A fire tests ................................................................................................ 42

G.6.2 Test procedure for Class B fire tests ................................................................................................ 42

G.6.3 General acceptance criteria ............................................................................................................... 42

Annex H Compaction procedure .................................................................................................................... 43

H.1 General ................................................................................................................................................. 43

H.2 Scope ................................................................................................................................................... 43

a) The powder extinguishers for testing, before the 24 h storage period at (20 ± 5)°C prior

to the following tests: ......................................................................................................................... 43

b) The water based extinguishers for testing, before the 24 h storage period at (20 ± 5) °C

prior to: ................................................................................................................................................ 43

H.3 References ........................................................................................................................................... 43

H.4 Equipment ........................................................................................................................................... 43

H.5 Tests conditions – Number of tests samples .................................................................................. 44

H.6 Test method ......................................................................................................................................... 44

H.7 Requirements – Acceptance criteria ................................................................................................. 44

Annex I Class F fire tests ................................................................................................................................ 45

I.1 General ................................................................................................................................................. 45

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I.2 Scope .................................................................................................................................................... 45

I.3 References............................................................................................................................................ 45

I.4 Equipment ............................................................................................................................................ 45

I.5 Test conditions-Number of test samples .......................................................................................... 45

I.6 Test method.......................................................................................................................................... 46

I.7 Requirement-acceptance criteria ....................................................................................................... 47

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Foreword

This document (CEN/TR 15642:2011) has been prepared by Technical Committee CEN/TC 70 “Manual

means of fire fighting equipment”, the secretariat of which is held by AFNOR.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.
This document supersedes CEN/TR 15642: 2008.

This document is divided in Annexes, corresponding to the following tests in EN 3-7:2004+A1:2007.

Annex A: Duration of operation and residual charge
Annex B: Effective range of operating temperature test

Annex C: Operation and emission control mechanism / devices and safety devices tests

Annex D: Control valve
Annex E: Hose and coupling systems tests

Annex F: Resistance to extinguishing medium of extinguishers using water based media

Annex G: Classes A and B fire tests
Annex H: Compaction procedure
Annex I: Class F fire tests
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CEN/TR 15642:2011 (E)
1 Scope

This Technical Report specifies the tests procedures for some of the tests required by EN 3-

7:2004+A1:2007; it does not cover all the EN 3-7:2004+A1:2007 tests but only the tests requiring more

precision in their execution.

These Unified Tests Procedures are in force for all laboratories performing EN 3-7:2004+A1:2007 tests.

Those laboratories should be accredited to EN ISO/IEC 17025 for EN 3-7:2004+A1:2007 tests and their

accreditation shall be done by an Accreditation Body, member of the European Accreditation.

This document should be included in the list of applicable documents.

NOTE Since results of many tests may be affected by the human factor, this document should be taken as a

helpful tool but will not replace experience and knowledge of people.”
2 Normative references

The following referenced documents are indispensable for the application 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 3-7:2004+A1:2007 Portable fire extinguishers — Part 7: Characteristics, performance requirements and

test methods

EN ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories

(ISO/IEC 17025:2005)
ISO 657-1, Hot-rolled steel sections — Part 1: Equal-leg angles-Dimensions
ISO 4470, Sawn timber — Determination of the average moisture content of a lot
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Annex A
Duration of operation and residual charge
A.1 General

This procedure describes the method to measure the duration of operation and the residual charge of an

extinguisher after discharge.
A.2 Scope
This procedure applies to all types of portable extinguishers.
A.3 References
EN 3-7:2004+A1: 2007, 3.13, 5, 7.1, 7.2, 7.3, Annex A and Annex K.
A.4 Equipment
 Stopwatch with at least 3 splits.
 Scale.

The measurement equipment shall fulfil the applicable requirements of EN ISO/IEC 17025 regarding

calibration.
A.5 Tests conditions – Number of tests samples
Number of test samples : Three

 Powder and water based extinguishers samples shall be submitted to the compaction procedure prior

to the storage period. Extinguishers with gaseous extinguishing media are not subjected to this

compaction.

 Extinguishers for testing shall prior to the test be stored for at least 24 h at (20 ± 5)°C.

 Test shall be carried out within 5 min of its removal from storage.
A.6 Test method
A.6.1 General
Record the actual gross weight of all the extinguishers used in the test.
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A.6.2 Duration of operation
A.6.2.1 General

Two technicians are needed to carry out this test: one operates the extinguisher; the other one measures

times by stopwatch.
A.6.2.2 Stored pressure extinguishers (all types of media)
 Release the safety device.

 Hold the extinguisher by hand in its normal working position (see label instructions) and keep it

immobile for the duration of the test. If there is a hose, hold the nozzle in the other hand in a horizontal

position.
 Fully open the control valve and start the stopwatch (t ).
 Record by split (t ) on the stopwatch the delay of the beginning of discharge.

 Record by split (t ) on the stopwatch the end of discharge of the extinguishing medium:

 For CO extinguisher:

 The end of discharge can be noticed by a clear visible (from a white to a more transparent

colour) and audible (from a deep to a higher hissing sound) modification of the gas jet.

 Another type of extinguisher :

 The end of discharge can be noticed at the moment when all the extinguishing agent is

discharged. The residual propellant gas is not taken into account.
 Keep the control valve fully open during 1 min after t .

 Calculate and record the duration of discharge (t -t ) for each of the three extinguishers.

2 1
The diagram to perform the test is as follow (see Figure A.1):

 Calculate and record the average and the spread of each measurement of the duration of discharge.

 remove safety device;
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start stopwatch) (t ) and open the control valve,
Key
1 discharge delay max 4 s
2 duration of operation
3 1 min release of remaining gas then close the valve
4 discharge finishing
Figure A.1
A.6.2.3 Gas cartridge type extinguisher
 Release the safety device.

 If the pressurisation is not achieved by the releasing of the safety device, pressurise the extinguisher

according to the instructions of the label.
 Start the stopwatch when the cartridge is opened (t ).

 Hold the extinguisher by hand in its normal working position (see label instructions) and keep it

immobile for the duration of the test. If there is a hose, hold the nozzle in the other hand in a horizontal

position.

 Only for extinguisher using a pressurisation device independent of the control valve, after (6 ± 1)s (t ).

(SPLIT on the stopwatch) open the control valve.
 Record by split (t ) on the stopwatch the delay of the beginning of discharge.

 Record by split (t ) on the stopwatch the end of discharge of the extinguishing medium.

 The end of discharge can be noticed by the moment when all the extinguishing agent is discharged.

The residual propellant gas is not taken into account.
 Keep the control valve fully open during 1 min after t .

 Calculate and record the duration of discharge (t - t ) for each of the three extinguishers.

2 1

 Calculate and record the average and the spread of each measurement of the duration of discharge.

Diagram to perform the test is as follow:

 for extinguishers pressurised by a device independent of the control valve (see Figure A.2):

 remove safety device;

 pressurise the extinguisher (if not obtained by removing the safety device) and start the stopwatch

(t ),
 after (6 ± 1) s , split on the stopwatch (t ) and open the control valve,
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Key
1 pressurisation for 6 s
2 discharge delay max 4 s
3 duration of operation
4 1 min release of remaining gas then close the valve
5 discharge finishing
Figure A.2

 for extinguishers pressurised by activation of the control valve see Figure A.3:

 remove safety device;
 open the control valve (pressurisation) and start the stopwatch (t ).
Key
1 discharge delay max 4 s
2 duration of operation
3 1 min release of remaining gas then close the valve
4 discharge finishing
Figure A.3
A.6.3 Residual charge
A.6.3.1 Powder and water based extinguisher
 Check there is no pressure left in the extinguisher.
 Remove the closure of the extinguisher.
 Record the weight of the residual charge by one of the following method:
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- Collect the residual charge of media from the extinguisher and its dip tube, valve and hose (if

applicable).

- Measure the weight of the extinguisher containing residual charge (including medium from dip

tube and valve and hose if applicable). Then, empty and reweigh the body.
 Calculate and record the percentage related to the nominal charge.

 Check that the original charge of tested extinguishers fulfilled the filling tolerances required in

EN 3-7:2004+A1:2007, 6.2. (Take into account the weight of the propellant gas).
A.6.3.2 Gaseous media extinguisher
 Dry externally the extinguisher and record the weight.
 Reweigh the extinguisher after it is completely empty.
 Calculate the residual charge related to the nominal charge.

 Check that the original charge of tested extinguishers fulfilled the filling tolerances required in

EN 3-7:2004+A1:2007, 6.2 (Take into account the weight of the propellant gas where applicable.).

A.7 Requirements – Acceptance criteria
A.7.1 Minimum duration

The duration of operation of each extinguisher shall comply with the requirements of Tables 2 to 7 of

EN 3-7:2004+A1:2007 (see Tables A.1 to A.6 hereafter):
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Table A.1 — Fire ratings, minimum duration of operation and nominal charges for powder

extinguishers
Fire rating Minimum duration of operation (s) Nominal permitted charges (kg)
5 A 6 1
8 A 6 1, 2
13 A 9 1, 2, 3, 4
21 A 9 1, 2, 3, 4, 6
27 A 9 1, 2, 3, 4, 6, 9
34 A 12 1, 2, 3, 4, 6, 9
43 A 15 1, 2, 3, 4, 6, 9, 12
55 A 15 1, 2, 3, 4, 6, 9, 12

Table A.2 — Fire ratings, minimum duration of operation and nominal charges for water based

extinguishers including foam extinguishers
Fire rating Minimum duration of operation (s) Nominal permitted charges (l)
5 A 6 2, 3
8 A 9 2, 3, 6
13 A 9 2, 3, 6, 9
21 A 9 2, 3, 6, 9
27 A 12 2, 3, 6, 9
34 A 15 2, 3, 6, 9
43 A 15 2, 3, 6, 9
55 A 15 2, 3, 6, 9

Table A.3 — Fire ratings, minimum duration of operation and nominal charges for powder

extinguishers
Fire rating Minimum duration of operation (s) Nominal permitted
...

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