SIST EN 16856:2020
(Main)Portable aerosol dispensers for fire extinguishing purposes
Portable aerosol dispensers for fire extinguishing purposes
This draft European Standard specifies the characteristics, performance and test methods for extinguishing aerosol dispensers, in accordance with Directive 75/324/EEC, for fire extinguishing purposes. Requirements in this draft Standard are specified for products containing less than 1 kg or 1 l of extinguishing media, which can be expelled by the action of internal pressure and are intended to extinguish test fires of type A + B, or type A + F, or type A + B + F classes of EN 2. These extinguishing aerosol dispensers are intended to be used by untrained persons for domestic applications. They are not intended to be used on gas fires (class C) and metal fires (class D).
Requirements are specified for minimum performance in Annex I for extinguishing test fires of type A, type B and type F classes of EN 2, as appropriate.
Annex A gives the conditioning treatment to be applied to extinguishing aerosol dispensers prior to testing as described in Annex B to Annex K.
Löschspraydosen
Dieser Europäische Normentwurf legt die Anforderungen an nicht nachfüllbare, tragbare Druckgas-packungen für Feuerlöschzwecke (Löschspraydosen) fest.
In Übereinstimmung mit der Richtlinie 75/324/EWG legt er die Eigenschaften, das Feuerlöschvermögen und Prüfverfahren für Druckgaspackungen für Feuerlöschzwecke (Löschspraydosen) fest. Die Anforderungen in diesem Normentwurf sind für Produkte mit weniger als 1 kg oder 1 l Löschmittel festgelegt, das durch die Einwirkung des Innendrucks ausgestoßen werden kann und zum Löschen von Prüfbränden der Klassen A und B oder der Klassen A und F oder der Klassen A, B und F der EN 2 vorgesehen ist. Diese Löschspraydosen sind für die Verwendung durch ungeübte Personen im häuslichen Bereich vorgesehen. Sie sind nicht dafür vorgesehen, bei Gasbränden (Brandklasse C) und Metallbränden (Brandklasse D) verwendet zu werden.
In Anhang I sind die Anforderungen an das Mindest Feuerlöschvermögen bei Prüfbränden der Brandklasse A, Brandklasse B und Brandklasse F nach EN 2 festgelegt, wie jeweils zutreffend.
In Anhang A wird die Behandlung zur Konditionierung angegeben, der die Löschspraydosen vor den in Anhang B bis Anhang K beschriebenen Prüfungen zu unterziehen sind.
Générateur d’aérosol portatif à fonction extinctrice
La présente Norme européenne spécifie les exigences relatives aux générateurs d’aérosols portatifs non rechargeables destinés à l’extinction d’incendies.
Elle spécifie les caractéristiques, les performances et les méthodes d’essai relatives aux générateurs d’aérosols à fonction extinctrice, conformément à la Directive 75/324/CEE, destinés à l’extinction d’incendies. Les exigences de la présente norme sont spécifiées pour les produits contenant moins de 1 kg ou 1 l d’agent extincteur, qui peuvent être diffusés par l’action d’une pression interne et qui sont destinés à l’extinction de foyers-types des classes A + B, ou A + F, ou A + B + F selon le classement de l’EN 2. Les générateurs d’aérosols à fonction extinctrice sont destinés à être utilisés par des personnes non formées, pour des applications domestiques. Ils ne sont pas destinés à être utilisés sur des feux de gaz (classe C) ou sur des feux de métaux (classe D).
L’Annexe I spécifie des exigences de performances minimales pour l’extinction de foyers-types des classes A, B et F de l’EN 2, suivant le cas.
L’Annexe A indique les conditions prérequises à appliquer aux générateurs d’aérosols à fonction extinctrice avant les essais décrits dans les Annexes B à K.
Prenosni aerosolni razpršilniki za gašenje požara
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 16856:2020
01-junij-2020
Prenosni aerosolni razpršilniki za gašenje požara
Portable aerosol dispensers for fire extinguishing purposes
Löschspraydosen
Générateur d’aérosol portatif à fonction extinctrice
Ta slovenski standard je istoveten z: EN 16856:2020
ICS:
13.220.10 Gašenje požara Fire-fighting
SIST EN 16856:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 16856:2020
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SIST EN 16856:2020
EN 16856
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 13.220.10
English Version
Portable aerosol dispensers for fire extinguishing
purposes
Générateur d'aérosol portatif à fonction extinctrice Feuerlöschsprays
This European Standard was approved by CEN on 27 January 2020.
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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16856:2020 E
worldwide for CEN national Members.
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SIST EN 16856:2020
EN 16856:2020 (E)
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Contents of the extinguishing aerosol dispenser . 8
4.1 Extinguishing media . 8
4.2 Propellant . 9
5 Construction, design and prototype testing . 9
5.1 Operation . 9
5.2 Body and closure . 10
5.3 Corrosion resistance . 10
5.4 Impact resistance . 11
5.5 Resistance to shock and mechanical damage . 11
5.6 Test pressure . 11
5.7 Burst pressure . 11
5.8 Life of product . 11
5.9 Dielectric test . 11
6 Filling requirements . 12
6.1 Media tolerance . 12
6.2 Filling pressure . 12
6.3 Maximum developed pressure. 12
7 Performance . 12
7.1 Delay on operation . 12
7.2 Duration of discharge . 12
7.3 Minimum discharge of contents . 12
7.4 Retention of charge following partial discharge . 12
7.5 Fire extinguishing performance rating — Ratings . 12
7.6 Effective throw . 13
8 Production tests . 13
8.1 General. 13
8.2 Verification of strength . 13
8.3 Burst test . 14
8.4 Crimped closures . 14
8.5 Discharge test . 14
8.6 Leak test . 14
9 Colour and marking of extinguishing aerosol dispensers . 15
9.1 Colour . 15
9.2 Marking - Primary information . 16
9.3 Marking - Secondary information . 17
10 Sampling . 17
Annex A (normative) Test conditions . 18
A.1 Storing and temperature . 18
A.2 Mechanical preparation . 18
A.3 Pressure connection . 18
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EN 16856:2020 (E)
Annex B (normative) Corrosion test . 19
B.1 External corrosion. 19
B.2 Internal corrosion . 19
Annex C (normative) Impact test . 20
Annex D (normative) Mechanical drop test . 22
Annex E (normative) Pressure tests for bodies . 23
E.1 General . 23
E.2 Test for resistance to pressure . 23
E.3 Minimum burst test . 23
Annex F (normative) Measurement of forces . 24
Annex G (normative) Discharge tests . 25
G.1 Duration of discharge and minimum discharge of contents . 25
G.2 Intermittent discharge and minimum discharge of contents . 26
G.3 Effective throw . 26
Annex H (normative) Test for retention of charge after partial discharge . 27
Annex I (normative) Fire extinguishing performance tests . 28
I.1 General . 28
I.2 Schedule for testing . 28
I.3 Class A fire test. 28
I.4 Class B fire test. 31
I.5 Class F fire test . 33
Annex J (normative) Dielectric test . 37
J.1 General . 37
J.2 Apparatus . 37
J.3 Test procedure . 37
Annex K (normative) Chemical and pressure stability test . 39
Annex L (informative) Example of breakdown and order of tests . 40
Bibliography . 41
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SIST EN 16856:2020
EN 16856:2020 (E)
European foreword
This document (EN 16856:2020) has been prepared by Technical Committee CEN/TC 70 “Manual
means of firefighting equipment”, the secretariat of which is held by AFNOR.
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 October 2020, and conflicting national standards shall
be withdrawn at the latest by October 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.
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 16856:2020
EN 16856:2020 (E)
Introduction
This document has been written with the aim of producing a specification for small disposable, aerosol
dispensers for fire extinguishing purposes with an acceptable level of performance. This type of product
is intended for domestic use only in situations where fires of limited proportions are anticipated
because of the nature of some process or activity, where the possibility of fire spreading to other
materials is remote, or where people are present at the likely times of risk. These products are not
intended to supplant extinguishers that comply with EN 3.
Special attention is drawn to Directive 75/324/EEC of 20 May 1975, on the approximation of the laws
of the member states relating to Aerosol Dispensers, Directive 2008/47/EC and Commission Directive
94/1/EC of 6 January 1994 adapting some technicalities of Council Directive 75/324/EEC on the
approximation of the laws of the Member States relating to aerosol dispensers.
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SIST EN 16856:2020
EN 16856:2020 (E)
1 Scope
This document specifies the requirements for non-refillable portable aerosol dispensers for fire
extinguishing purposes.
It supplements the characteristics, performance and test methods for extinguishing aerosol dispensers
for fire extinguishing purposes, in addition to the requirements of the Directive 75/324/EEC.
Requirements in this document are specified for products containing less than 1 kg or 1 l of
extinguishing media, which can be expelled by the action of internal pressure and are intended to
extinguish test fires of type A + B, or type A + F, or type A + B + F classes of EN 2. These extinguishing
aerosol dispensers are intended to be used by untrained persons for domestic applications. They are
not intended to be used on gas fires (class C) and metal fires (class D).
Requirements are specified for minimum performance in Annex I for extinguishing test fires of type A,
type B and type F classes of EN 2, as appropriate.
Annex A gives the conditioning to be applied to extinguishing aerosol dispensers prior to testing as
described in Annex B to Annex K.
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 2, Classification of fires
EN 3 (all parts), Portable Fire Extinguishers
EN 615, Fire protection - Fire extinguishing media - Specifications for powders (other than class D
powders)
EN 1568-3, Fire extinguishing media - Foam concentrates - Part 3: Specification for low expansion foam
concentrates for surface application to water-immiscible liquids
EN 1568-4, Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam
concentrates for surface application to water-miscible liquids
EN 14848, Aerosol containers - Metal containers with 25,4 mm aperture - Dimensions of valve cups
EN 14850, Aerosol containers - Metal containers with 25,4 mm aperture - Measurement of contact height
EN 15006, Metal aerosol containers - Aluminium containers - Dimensions of the 25,4 mm aperture
EN 15008, Aerosol containers - Aluminium containers - Dimensions of one-piece cans with 25,4 mm
aperture
EN ISO 9227, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017)
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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SIST EN 16856:2020
EN 16856:2020 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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 http://www.iso.org/obp
3.1
fire extinguishing aerosol dispenser
non-refillable metallic container intended for a single use, which holds a compressed gas and liquid,
paste or powder extinguishing media, equipped with a valve allowing a controlled discharge of the
contents
3.2
batch
definite quantity of products or components produced at one time under uniform condition
3.3
body
metallic container of the extinguishing aerosol dispenser not fitted with its accessories, such as valves
3.4
valve
self-closing release device allowing the discharge of the extinguishing media to be interruptible
3.5
charge of an extinguishing aerosol dispenser
mass or volume of the extinguishing media contained in the extinguishing aerosol dispenser
3.6
maximum pressure at maximum operating temperature
P(T )
max
pressure within the extinguishing aerosol dispenser when filled with the quantity of solid, liquid and
gaseous content to the maximum upper tolerance specified under production conditions, at a
temperature of T
max
3.7
working pressure
pressure declared by the manufacturer as the pressure within the extinguishing aerosol dispenser,
when filled with quantities of solid, liquid and gaseous content at 20 °C
3.8
extinguishing media
substance including any additive, such as corrosion inhibitor, freezing point depressant or foaming
agent, contained in the extinguishing aerosol dispenser that causes extinction of a fire
3.9
protective cap
cover over the valve of the extinguishing aerosol dispenser
Note 1 to entry: if fitted, the protective cap may be the safety device.
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SIST EN 16856:2020
EN 16856:2020 (E)
3.10
propellant
compressed gas held in the container, which provides the required pressure for the discharge of the
extinguishing media
3.11
fire rating
designation of the largest test fire that has been extinguished when tested in accordance with 7.5.2,
7.5.3 and 7.5.4
3.12
domestic
premises occupied as a private dwelling, including any garden, yard, garage, outhouse, or appurtenance
of such premises, which is not used in common by the occupants of more than one such dwelling
3.13
safety device
part that needs to be broken or removed before the extinguishing aerosol dispenser, and can be
activated to prevent inadvertent operation
3.14
security seal
part that is broken when removing the safety device and once broken cannot be replaced
3.15
minimum operating temperature
T
min
minimum temperature declared by the manufacturer at which the extinguishing aerosol dispenser will
operate
3.16
maximum operating temperature
T
max
maximum temperature declared by the manufacturer
4 Contents of the extinguishing aerosol dispenser
4.1 Extinguishing media
The extinguishing media shall be one of the following:
— water based, including additives conforming to the physical and chemical characteristics declared
by the manufacturer;
— powder conforming to EN 615.
For products containing AFFF, use EN 1568-3 or EN 1568-4; and for those containing powder use
EN 615.
Where an EN or ISO standard applies, it should be used.
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SIST EN 16856:2020
EN 16856:2020 (E)
4.2 Propellant
Only propellants listed in Table 1 or mixtures thereof shall be used. The maximum water content shall
be as specified in Table 1, except when used in a water-based extinguishing aerosol dispenser. Tracers
may be added to the propellant to facilitate leakage detection, but the content shall not exceed a mass
fraction of 10 % of the propellant content.
Table 1 — Permitted propellants
Propellant Maximum water content
mass fraction
%
Air 0,006
Argon 0,006
Helium 0,006
Nitrogen 0,006
5 Construction, design and prototype testing
5.1 Operation
5.1.1 The extinguishing aerosol dispenser shall be operated by activating the valve. The method of
activation shall be readily apparent. It shall be possible to operate the valve by one single action after
having removed the safety device. It shall not be necessary for any movement of the actuating
mechanism to be repeated in order to initiate discharge.
5.1.2 The construction of the extinguishing aerosol dispenser shall ensure no parts can be removed,
excluding items in 5.1.6 and 5.1.7.
5.1.3 The design of the extinguishing aerosol dispenser shall allow visual identification if the
extinguishing aerosol dispenser has been unsealed.
5.1.4 If during visual inspection the seal is found to be broken the extinguishing aerosol dispenser
shall be discarded.
5.1.5 The extinguishing aerosol dispenser shall be used with the valve upright.
5.1.6 The extinguishing aerosol dispenser shall incorporate a safety device to prevent inadvertent
operation, which shall be so constructed that any unaided manual attempt to initiate discharge will not
deform or break any part in a way that would prevent the subsequent discharge of the extinguishing
aerosol dispenser.
5.1.7 The extinguishing aerosol dispenser shall have a security seal, which shall be broken by the
removal of the safety device. The force required to remove the safety device and break the security seal
shall be between 5 N and 50 N, see Annex F. This security seal shall not be re-usable.
5.1.8 The extinguishing aerosol dispenser shall incorporate a valve to enable the discharge to be
started. The force required to actuate the device shall be between 5 N and 50 N. This valve shall be self-
closing enabling the discharge to be interrupted, see Annex F.
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EN 16856:2020 (E)
5.2 Body and closure
5.2.1 Body
The body shall be a metallic seamless container and shall have a maximum total capacity of 1000 ml,
and if in aluminium shall be in accordance with EN 15006 and EN 15008.
Seamless steel containers are allowed.
5.2.2 Closure
The closure shall be crimped under the neck ring of the body, in accordance with EN 14848 and
EN 14850.
5.3 Corrosion resistance
5.3.1 External corrosion
After testing in accordance with B.1, the extinguishing aerosol dispenser shall show no signs of
corrosion or other chemical degradation likely to impair its operation or safety, and shall fulfill the
following requirements:
— the force required to release the safety device shall be as specified in 5.1.7;
— the force required to actuate the extinguishing aerosol dispenser shall be as specified in 5.1.8;
— when the extinguishing aerosol dispenser is tested in accordance with G.1 each duration of
operation at (20 ± 10) °C shall be within ± 25 % with a maximum deviation of 5 s of the average
value determined in 7.2;
— the extinguishing aerosol dispenser shall fulfil requirement of 5.7;
— the rate of pressure loss shall not exceed 5 % of the working pressure per annum.
5.3.2 Internal corrosion
After testing in accordance with B.2, the extinguishing aerosol dispenser shall fulfill the following
requirements:
— the rate of pressure loss shall not exceed 5 % of the working pressure per annum;
— when the extinguishing aerosol dispenser is tested in accordance with G.1 each duration of
operation at (20 ± 10) °C shall be within ± 25 % with a maximum deviation of 5 s of the average
value determined in 7.2;
— the extinguishing aerosol dispenser shall fulfill the requirements of 5.7.
5.3.3 Chemical and pressure stability
The contents shall not generate pressure by reacting with the body or any lining. The complete
assembly shall be chemically stable. Small increases are permitted, but the total pressure may increase
by a maximum of 10 % of the working pressure during the test, but shall be stable by the end of the test.
It shall be tested in accordance with Annex K.
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EN 16856:2020 (E)
5.4 Impact resistance
After being subjected to testing in accordance with Annex C, the extinguishing aerosol dispenser (with
safety device) correctly charged and equipped with all the fittings that are subject to internal pressure
in normal operation, may leak but the body shall not rupture. To ensure any leak does not affect the
performance of the extinguishing aerosol dispenser, it shall operate as intended and be tested after 5
min of being subjected to the tests in Annex C. The discharge time shall be ± 25 % with a maximum
deviation of 5 s of the actual time measured in 7.2 and the minimum discharge shall be in accordance
with 7.3.
5.5 Resistance to shock and mechanical damage
After being subjected to testing in accordance with Annex D, the extinguishing aerosol dispenser (with
safety device) shall operate as intended i.e. the discharge time shall be ± 25 % with a maximum
deviation of 5 s of the average effective discharge time measured in 7.2 and the minimum discharge
shall be in accordance with 7.3.
5.6 Test pressure
The body shall withstand an internal pressure of 10 bar or 1,5 times the P(T ), whichever is the
max
greater, without permanent deformation and no increase in volume greater than 1 % when tested in
accordance with E.2.
5.7 Burst pressure
The minimum burst pressure of the assembly, fitted with all pressure retaining parts, shall be 18 bar or
at least 1,2 times test pressure, whichever is the greater, when tested in accordance with E.3.
The assembly shall not fragment or eject any parts.
5.8 Life of product
The extinguishing aerosol dispenser has a maximum expiry date of 39 months from the date of
manufacture.
Extinguishing aerosol dispensers are intended to be discarded after any use and are not to be refilled.
NOTE Disposal might be controlled by National laws and regulations.
5.9 Dielectric test
5.9.1 General
The dielectric test is designed to determine the electrical conductivity of the water based extinguishing
aerosol dispenser discharge stream during the test when performed in accordance with Annex J.
5.9.2 Required performance
When the extinguishing aerosol dispenser is in operation and the metallic plate is live, the current
between the aerosol dispenser and earth, and between the nozzle and earth, shall not be more than
0,5 mA at any time during the complete discharge of the extinguishing aerosol dispenser. The test shall
be carried out in accordance with Annex J.
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SIST EN
...
SLOVENSKI STANDARD
oSIST prEN 16856:2018
01-februar-2018
Prenosni aerosolni razpršilniki za gašenje požara
Portable aerosol dispensers for fire extinguishing purposes
Löschspraydosen
Générateur d’aérosol portatif à fonction extinctrice
Ta slovenski standard je istoveten z: prEN 16856
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 16856:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 16856:2018
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oSIST prEN 16856:2018
DRAFT
EUROPEAN STANDARD
prEN 16856
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2017
ICS 13.220.10
English Version
Portable aerosol dispensers for fire extinguishing
purposes
Générateur aérosol à fonction extinctrice Löschspraydosen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 70.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16856:2017 E
worldwide for CEN national Members.
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oSIST prEN 16856:2018
prEN 16856:2017 (E)
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Contents of the extinguishing aerosol dispenser . 9
4.1 Extinguishing medium . 9
4.2 Propellant . 9
5 Construction, design and prototype testing . 10
5.1 Operation . 10
5.2 Body and closure . 10
5.2.1 Body . 10
5.2.2 Closure . 10
5.3 Corrosion resistance . 11
5.3.1 External corrosion . 11
5.3.2 Internal corrosion . 11
5.3.3 Chemical and pressure stability . 11
5.4 Impact resistance . 12
5.5 Resistance to shock and mechanical damage . 12
5.6 Test pressure . 12
5.7 Burst pressure . 12
5.8 Life of product . 12
5.9 Dielectric test . 12
5.9.1 General . 12
5.9.2 Required performance . 12
6 Filling requirements . 13
6.1 Media tolerance . 13
6.2 Filling pressure . 13
6.3 Maximum developed pressure . 13
7 Performance. 13
7.1 Delay on operation . 13
7.2 Duration of discharge . 13
7.3 Minimum discharge of contents. 13
7.4 Retention of charge following partial discharge. 13
7.5 Fire extinguishing performance rating — Ratings . 13
7.5.1 General . 13
7.5.2 Class A rating . 13
7.5.3 Class B rating . 13
7.5.4 Class F rating . 14
7.6 Effective throw . 14
8 Production tests . 14
8.1 General . 14
8.2 Verification of strength . 14
8.2.1 General . 14
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oSIST prEN 16856:2018
prEN 16856:2017 (E)
8.2.2 Hot water bath method . 14
8.2.3 Hot final test method . 14
8.2.4 Cold final test method . 14
8.3 Burst test . 14
8.4 Crimped closures . 15
8.5 Discharge test . 15
8.6 Leak test . 15
9 Colour and marking of extinguishing aerosol dispensers . 15
9.1 Colour . 15
9.2 Marking - Primary information . 16
9.2.1 The extinguishing aerosol dispenser shall be marked with the following . 16
9.3 Marking - Secondary information . 17
Annex A (normative) Test conditions . 19
A.1 General . 19
A.2 Storing and temperature . 19
Annex B (normative) Corrosion test . 20
B.1 External corrosion . 20
B.2 Internal corrosion . 20
Annex C (normative) Impact test . 21
Annex D (normative) Mechanical drop test . 23
Annex E (normative) Pressure tests for bodies. 24
E.1 Test for resistance to pressure . 24
E.2 Minimum burst test . 24
Annex F (normative) Measurement of forces . 25
Annex G (normative) Discharge tests . 26
G.1 Duration of discharge and minimum discharge of contents . 26
G.2 Intermittent discharge and minimum discharge of contents . 26
G.3 Effective throw . 27
Annex H (normative) Test for retention of charge after partial discharge . 28
Annex I (normative) Fire extinguishing performance tests . 29
I.1 General . 29
I.2 Schedule for testing . 29
I.3 Class A fire test . 29
I.3.1 Characteristics of test fire . 29
I.3.2 Test conditions . 31
I.3.3 Test procedure . 31
I.4 Class B fire test . 32
I.4.1 Characteristics of test fire . 32
I.4.2 Test conditions . 33
I.4.3 Test procedure . 33
I.5 Class F fire test . 34
I.5.1 General . 34
I.5.2 Characteristics of test fire . 34
I.5.3 Test conditions . 35
I.5.4 Test procedure . 35
Annex J (normative) Dielectric test . 37
J.1 Apparatus . 37
J.2 Test procedure . 37
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Annex K (normative) Chemical and pressure stability test . 39
Annex L (informative) Example of breakdown and order of tests . 40
Bibliography . 41
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European foreword
This document (prEN 16856:2017) has been prepared by Technical Committee CEN/TC 70
“Manual means of fire fighting equipment”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
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Introduction
This draft standard has been written with the aim of producing a specification for small
disposable, aerosol dispensers for fire extinguishing purposes with an acceptable level of
performance. This type of product is intended for use only in situations where fires of limited
proportions are anticipated because of the nature of some process or activity, where the
possibility of fire spreading to other materials is remote, or where people are present at the
likely times of risk. These products are not intended to supplant extinguishers that comply with
EN 3 (all parts), which should still be regarded as the principal type to meet the needs of various
authorities.
Special attention is drawn to Directive 75/324/EEC of 20 May 1975, on the approximation of
the laws of the member states relating to Aerosol Dispensers, Directive 2008/47/EC and
Commission Directive 94/1/EC of 6 January 1994 adapting some technicalities of Council
Directive 75/324/EEC on the approximation of the laws of the Member States relating to
aerosol dispensers.
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1 Scope
This draft European Standard specifies the requirements for non-refillable portable aerosol
dispensers for fire extinguishing purposes.
It specifies the characteristics, performance and test methods for extinguishing aerosol
dispensers, in accordance with Directive 75/324/EEC, for fire extinguishing purposes.
Requirements in this draft Standard are specified for products containing less than 1 kg or 1 l of
extinguishing media, which can be expelled by the action of internal pressure and are intended
to extinguish test fires of type A + B, or type A + F, or type A + B + F classes of EN 2. These
extinguishing aerosol dispensers are intended to be used by untrained persons for domestic
applications. They are not intended to be used on gas fires (class C) and metal fires (class D).
Requirements are specified for minimum performance in Annex I for extinguishing test fires of
type A, type B and type F classes of EN 2, as appropriate.
Annex A gives the conditioning treatment to be applied to extinguishing aerosol dispensers
prior to testing as described in Annex B to Annex K.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
EN 615, Fire protection — Fire extinguishing media — Specifications for powders (other than
class D powders)
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227)
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
EN 2, Classification of fires
EN 3 (all parts), Portable Fire Extinguishers
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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 http://www.iso.org/obp
3.1
aerosol dispenser for fire extinguishing purposes
non-refillable metallic container intended for a single use, which holds a compressed gas and
liquid, paste or powder extinguishing media, equipped with a valve allowing a controlled
discharge of the contents
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Note 1 to entry: Extinguishing aerosol dispensers are designed to be discarded after any use and are
not to be refilled.
Note 2 to entry: Disposal may be controlled by National laws and regulations.
3.2
batch
definite quantity of products or components produced at one time under uniform condition
3.3
body
seamless metallic container of the extinguishing aerosol dispenser not fitted with its
accessories, such as valves
3.4
valve
self-closing release device allowing the discharge of the extinguishing media to be interruptable
3.5
charge of an extinguishing aerosol dispenser
mass or volume of the extinguishing medium contained in the extinguishing aerosol dispenser
3.6
maximum pressure at maximum operating temperature
P(T )
max
pressure within the extinguishing aerosol dispenser when filled with the quantity of solid, liquid
and gaseous content to the maximum upper tolerance specified under production conditions, at
a temperature of 50 °C
3.7
burst pressure
maximum pressure achieved during a burst test
3.8
test pressure
pressure, when applied, shows no visible permanent deformation
3.9
working pressure
pressure declared by the manufacturer as the pressure within the extinguishing aerosol
dispenser, when filled with quantities of solid, liquid and gaseous content at 20 °C
3.10
extinguishing medium
substance including any additive, such as corrosion inhibitor, freezing point depressant or
blowing agent, contained in the extinguishing aerosol dispenser that causes extinction of a fire
3.11
protective cap
cover over the valve of the extinguishing aerosol dispenser
Note to entry: if fitted, the protective cap is the safety device
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3.12
propellant
compressed gas held in the container, which allows the required pressure for the discharge of
the extinguishing medium
3.13
fire rating
designation of the largest test fire that has been extinguished when tested in accordance with
7.5.2, 7.5.3 and 7.5.4
3.14
domestic
premises occupied as a private dwelling, including any garden, yard, garage, outhouse, or
appurtenance of such premises, which is not used in common by the occupants of more than
one such dwelling
3.15
safety device
part that needs to be broken or removed before the extinguishing aerosol dispenser, and can be
activated to prevent inadvertent operation
3.16
security seal
part that is broken when removing the safety device and once broken cannot be replaced
3.17
minimum operating temperature
T
min
minimum temperature declared by the manufacturer at which the extinguishing aerosol
dispenser will operate
T is defined by the Directive
max
4 Contents of the extinguishing aerosol dispenser
4.1 Extinguishing medium
The extinguishing medium shall be one of the following:
— water based, including additives conforming to the physical characteristics declared by the
manufacturer;
— powder conforming to EN 615.
4.2 Propellant
Only propellants listed in Table 1 or mixtures thereof shall be used. The maximum water
content shall be as specified in Table 1, except when used in a water-based extinguishing
aerosol dispenser. Tracers may be added to the propellant to facilitate leakage detection, but the
content shall not exceed a mass fraction of 10 % of the propellant content.
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Table 1 — Permitted propellants
Propellant Maximum water content
mass fraction, %
Air 0,006
Argon 0,006
Helium 0,006
Nitrogen 0,006
5 Construction, design and prototype testing
5.1 Operation
5.1.1 The extinguishing aerosol dispenser shall be operated by activating the valve. The
method of activation shall be readily apparent. It shall be possible to operate the valve by one
single action after having removed the safety device. It shall not be necessary for any movement
of the actuating mechanism to be repeated in order to initiate discharge.
5.1.2 The construction of the extinguishing aerosol dispenser shall ensure no parts can be
removed, excluding items in 5.1.5 and 5.1.6.
5.1.3 The design of the extinguishing aerosol dispenser shall allow visual identification of
whether or not it has been used.
5.1.4 The extinguishing aerosol dispenser shall not need to be turned upside down to operate.
5.1.5 The extinguishing aerosol dispenser shall incorporate a safety device to prevent
inadvertent operation, which shall be so constructed that any unaided manual attempt to
initiate discharge will not deform or break any part in a way that would prevent the subsequent
discharge of the extinguishing aerosol dispenser.
5.1.6 The extinguishing aerosol dispenser shall have a security seal, which shall be broken by
the removal of the safety device. The force required to remove the safety device and break the
security seal shall be between 5 N and 50 N, see Annex F. This security seal shall be such that it
will not be broken or damaged in normal service and cannot be refitted after operation.
5.1.7 The extinguishing aerosol dispenser shall incorporate a valve to enable the discharge to
be interrupted. The force required to actuate the device shall be between 5 N to 50 N, see
Annex F.
5.2 Body and closure
5.2.1 Body
The body shall be a metallic seamless container and shall have a maximum total capacity of
1 000 ml.
5.2.2 Closure
The closure shall be crimped under the neck ring of the body. The crimping diameter and the
crimping depth shall be determined by the manufacturer, see Figure 1.
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Key
1 crimp depth
2 crimp diameter
3 neck ring
Figure 1 — Crimp diameter and depth
5.3 Corrosion resistance
5.3.1 External corrosion
After testing in accordance with B.1, the extinguishing aerosol dispenser shall show no signs of
corrosion or other chemical degradation likely to impair its operation or safety, and shall fulfill
the following requirements:
— the force required to activate the extinguishing aerosol dispenser shall be as specified in
5.1.7;
— the force required to release the safety device shall be as specified in 5.1.6;
— when the extinguishing aerosol dispenser is tested in accordance with G.1 the duration of
operation at (20 ± 10) °C shall be within ± 25 % with a maximum deviation of 5 s of the
value determined in 7.2;
— the extinguishing aerosol dispenser shall fulfil requirement of 5.7;
— the rate of pressure loss shall not exceed 5 % of the working pressure per annum.
5.3.2 Internal corrosion
After storage in accordance with B.2, the extinguishing aerosol dispenser shall fulfill the
following requirements:
a) the rate of pressure loss shall not exceed 5 % of the working pressure per annum;
b) when the extinguishing aerosol dispenser is tested in accordance with G.1 the duration of
operation at (20 ± 10) °C shall be within ± 25 % with a maximum deviation of 5 s of the
value determined in 7.2;
c) test for conformity to 7.5, see Annex H;
d) the extinguishing aerosol dispenser shall fulfil requirement of 5.7.
5.3.3 Chemical and pressure stability
The contents shall not generate pressure by reacting with the body or any lining. The complete
assembly shall be chemically stable. Small increases are permitted, but the total pressure may
increase by a maximum of 10 % of the working pressure during the test, but shall be stable by
the end of the test. It shall be tested in accordance with Annex K.
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5.4 Impact resistance
The extinguishing aerosol dispenser (with safety device) correctly charged and equipped with
all the fittings that are subject to internal pressure in normal operation, may leak but the body
shall not rupture, when tested in accordance with Annex C. To ensure any leak does not affect
the performance of the extinguishing aerosol dispenser, it shall operate as intended and be
tested after 5 min of being subjected to the tests in Annex C. The discharge time shall be ± 25 %
with a maximum deviation of 5 s of the actual time measured in 7.2 and the minimum discharge
shall be in accordance with 7.3.
5.5 Resistance to shock and mechanical damage
After being subjected to testing in accordance with Annex D, the extinguishing aerosol dispenser
(with safety device) shall:
— operate as intended i.e. the discharge time shall be ± 25 % with a maximum deviation of 5 s
of the average effective discharge time measured in 7.2 and the minimum discharge shall be
in accordance with 7.3;
— not show a pressure loss exceeding 5 % of the working pressure per annum.
5.6 Test pressure
The body shall withstand an internal pressure of 10 bar or 1,5 times the P(T ), whichever is
max
the greater, without visible permanent deformation and no increase in volume greater than 1 %
when tested in accordance with E.2.
5.7 Burst pressure
The min
...
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