CEN/TR 15642:2008
(Main)Unified tests procedures for the tests of EN 3-7
Unified tests procedures for the tests of EN 3-7
This procedure is applicable to:
2.1 The powder extinguishers for testing, before the 24 h storage period at (20 ± 5)°C prior to the following tests:
- the duration of operation tests;
- the control valve tests;
- the fire performance tests.
2.2 The water based extinguishers for testing, before the 24 h storage period at (20 ± 5)°C prior to:
- the duration of operation tests.
Vereinheitlichte Prüfverfahren für die Prüfungen nach EN 3-7
Das vorliegende Verfahren gilt für:
2.1 Zu prüfende Pulver-Feuerlöscher, vor der Lagerung für 24 h bei einer Temperatur von (20 ± 5) °C, vor
den folgenden Prüfungen:
- Prüfungen der Funktionsdauer;
- Prüfungen der Unterbrechungseinrichtung;
- Prüfungen des Löschvermögens.
2.2 Zu prüfende Feuerlöscher mit wässrigen Löschmitteln, vor der Lagerung für 24 h bei einer Temperatur
von (20 ± 5) °C, vor der folgenden Prüfung:
- Prüfungen der Funktionsdauer.
Modes opératoires unifiés pour les essais de l'EN 3-7
Ce mode opératoire s’applique aux extincteurs suivants :
2.1 les extincteurs à poudre destinés aux essais, avant la période de stockage de 24 h à (20 ± 5) °C, qui précède les essais suivants :
les essais concernant la durée de fonctionnement ;
les essais du robinet d’arrêt ;
les essais de performance au feu.
2.2 les extincteurs à base d’eau destinés aux essais, avant la période de stockage de 24 h à (20 ± 5) °C qui précède :
les essais relatifs à la durée de fonctionnement.
Poenoteni preskusni postopki za preskušanje po EN 3-7
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2008
Poenoteni preskusni postopki za preskušanje po EN 3-7
Unified tests procedures for the tests of EN 3-7
Vereinheitlichte Prüfverfahren für die Prüfungen nach EN 3-7
Modes opératoires unifiés pour les essais de l'EN 3-7
Ta slovenski standard je istoveten z: CEN/TR 15642:2008
ICS:
13.220.10
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL REPORT
CEN/TR 15642
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
January 2008
ICS 13.220.10
English Version
Unified tests procedures for the tests of EN 3-7
Modes opératoires unifiés pour les essais de l'EN 3-7 Vereinheitlichte Prüfverfahren für die Prüfungen nach EN 3-
This Technical Report was approved by CEN on 2 July 2007. It has been drawn up by the Technical Committee CEN/TC 70.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15642:2008: E
worldwide for CEN national Members.
Contents Page
Foreword.4
Part 1 – Compaction procedure .5
1 General.5
2 Scope .5
3 Normative references .5
4 Equipment .5
5 Tests conditions – Number of tests samples .6
6 Test method.6
7 Requirements – Acceptance criteria.6
Part 2 – Resistance to extinguishing medium of extinguishers using water based media.7
1 General.7
2 Scope .7
3 Normative references .7
4 Equipment .7
5 Test conditions – Number of tests samples .7
6 Test method.8
7 Requirements – Acceptance criteria.8
Part 3 – Duration of operation and residual charge .9
1 General.9
2 Scope .9
3 Normative references .9
4 Equipment .9
5 Tests conditions – Number of tests samples .9
6 Test method.9
6.1 General.9
6.2 Duration of operation .10
6.2.1 General.10
6.2.2 Stored pressure extinguishers (all types of media).10
6.2.3 Gas cartridge type extinguisher.11
6.3 Residual charge .12
6.3.1 Powder and water based extinguisher .12
6.3.2 Gaseous media extinguisher.13
7 Requirements – Acceptance criteria.13
7.1 Minimum duration.13
7.2 Spread of measurements.15
7.3 Commencement of discharge .16
7.4 Residual charge .16
Part 4 – Control valve .17
1 General.17
2 Scope.17
3 Normative references.17
4 Equipment .17
5 Tests conditions – Number of tests samples.17
6 Test method .17
6.1 General .17
6.2 1 kg and 2 kg powder stored pressure extinguishers .18
6.3 1 kg and 2 kg powder cartridge operated extinguishers.18
6.4 All stored pressure extinguishers excluding 1 and 2 kg powder and CO extinguishers.18
6.5 All cartridge operated extinguishers excluding 1 and 2 kg powder .19
6.6 CO extinguishers.20
7 Requirements – Acceptance criteria .20
Foreword
This document (CEN/TR 15642:2008) 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.
Part 1 – Compaction procedure
1 General
This procedure describes the method to perform the COMPACTION when required.
2 Scope
This procedure is applicable to:
2.1 The powder extinguishers for testing, before the 24 h storage period at (20 ± 5)°C prior to the following
tests:
the duration of operation tests;
the control valve tests;
the fire performance tests.
2.2 The water based extinguishers for testing, before the 24 h storage period at (20 ± 5)°C prior to:
the duration of operation tests.
3 Normative references
EN 3-7:2004 (Clause 5 and Annex K), Portable fire extinguishers - Part 7: Characteristics, performance
requirements and test methods
4 Equipment
Apparatus:
The compaction machine shall be designed to accept only one extinguisher at a time, which shall be raised by
a rod and guided by castors. The plate supporting the extinguisher shall be steel, (300 ± 5) mm square
and (60 ± 1) mm thick. Compaction machine shall be mounted to prevent movement and absorption of energy
due to the impact.
The compaction machine shall conform to the following:
the rod shall be adjustable to adjust to the extinguisher base;
the rod shall be able to move freely;
the extinguisher shall be guided without constraint in the guide castors;
the impact shall take place on the steel plate and not on the rod;
the cam to be used is shown in Figure K.1 of EN 3-7:2004. and shall rotate at uniform angular speed;
equipped with a counter, which automatically stops at 500 cycles.
The measurement equipment shall fulfil the applicable requirements of EN ISO/IEC 17025 regarding
calibration and accuracy.
5 Tests conditions – Number of tests samples
Compaction procedure is carried out at ambient temperature (20 ± 5)°C.
Number of test samples:
3 specimens of powder extinguishers for the duration of operation tests;
2 specimens of powder extinguishers for the control valve tests;
all specimens of powder extinguishers for the fire performance tests;
3 specimens of water based extinguishers for the duration of operation tests.
6 Test method
Procedure:
The extinguisher, in the condition in which it is used, and conditioned (20 ± 5) °C shall be subjected to the
compaction procedure.
The extinguisher shall be held in the vertical position in the compaction machine and dropped
vertically 500 times, from a height of (15 ± 1) mm, at a frequency of 1 Hz ± 10 %, onto the rigid horizontal steel
plate.
The extinguisher shall not be shaken nor inverted after the compaction and prior to the test.
7 Requirements – Acceptance criteria
The compaction procedure is a pre-conditioning procedure. The requirements are specified in the subsequent
tests (see SCOPE in clause 2 above).
Personal from the laboratory shall take care that the operability of the extinguisher is not affected by the
compaction. If operability of the extinguisher is affected this shall be reported.
Part 2 – Resistance to extinguishing medium of extinguishers using water based
media
1 General
This procedure describes the method to perform the test of RESISTANCE TO EXTINGUISHING MEDIUM OF
EXTINGUISHERS USING WATER BASED MEDIA.
2 Scope
This procedure is applicable to water based extinguishers.
3 Normative references
EN 3-7:2004 (14.2 and H.2), Portable fire extinguishers - Part 7: Characteristics, performance requirements
and test methods
4 Equipment
Required:
Air temperature conditioning chamber(s) (oven, refrigerator, cooler,…).
A continuous time and temperature recorder.
An equipment to cut the extinguisher’s body.
All the equipment shall be able to have a stability and uniformity in the defined testing volume with a tolerance
less than ± 2 ºC (empty).
The equipment(s) shall work between T and T .
min max
Liquid bath shall not be used.
The measurement equipment shall fulfil the applicable requirements of EN ISO/IEC 17025 regarding
calibration and accuracy.
5 Test conditions – Number of tests samples
Extinguishers for testing shall prior to the test be stored for at least 24 h at (20 ± 5)°C.
Number of test samples:
2 complete extinguishers + 1 complete extinguisher for reference for the extinguishing media
sampling.
6 Test method
Procedure:
Two glass containers of the media shall be taken from the reference extinguisher (without operating it).
Two extinguishers in the upright position and one glass container shall be subjected 8 times to the
temperature cycling given in the table below.
The second glass container shall be stored at (20 ± 5) °C during the whole cycling duration.
Table 1
STAGE DURATION (H) TEMPERATURE (ºC)
a
24 ± 1
T ± 2
min
≥ 24 +20 ± 5
b
3 24 ± 1
T ± 2
max
4 ≥ 24 +20 ± 5
a
For water based extinguishers with protection against freezing T shall be +5 ºC, 0 ºC, -5 ºC, -10 ºC, -
min
15 ºC, -20 ºC, -25 ºC,
...
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