Portable aerosol dispenser 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 H 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.

Löschspraydose

In Übereinstimmung mit der Richtlinie 75/324/EWG werden in dem vorliegenden Europäischen Norm-Entwurf die Eigenschaften, das Feuerlöschvermögen und Prüfverfahren für Druckgaspackungen für Feuerlöschzwecke (Löschspraydosen) festgelegt. Die Anforderungen in diesem Norm-Entwurf 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 Klassen A und F oder Klassen A, B und F der EN 2 vorgesehen ist. Diese Löschspraydosen sind für die Verwendung durch ungeübte Personen im häuslichen Bereich vorgesehen. Die Löschspraydosen sind nicht dazu vorgesehen, bei Gasbränden (Brandklasse C) und Metallbränden (Brandklasse D) verwendet zu werden.
In Anhang H sind die Anforderungen an das Mindest-Feuerlöschvermögen von Prüfbränden der Brandklasse A, Brandklasse B und Brandklasse F nach EN 2 festgelegt, sofern 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 pour l'extinction d'un incendie

La présente norme 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 litre 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 H spécifie des exigences de performance minimales pour l’extinction de foyers-types des classes A, B et F de l’EN 2, suivant les cas.
L’Annexe A indique les conditions pré-requises à appliquer aux générateurs d’aérosols à fonction extinctrice avant les essais décrits dans les Annexes de B à K.

Prenosni aerosolni razpršilnik za gašenje požarov

General Information

Status
Not Published
Current Stage
4098 - Decision to abandon - Enquiry
Due Date
09-May-2016
Completion Date
11-Jul-2016

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SLOVENSKI STANDARD
oSIST prEN 16856:2015
01-julij-2015
Prenosni aerosolni razpršilnik za gašenje požarov
Portable aerosol dispenser for fire extinguishing purposes
Löschspraydose
Générateur d'aérosol portatif pour l'extinction d'un incendie
Ta slovenski standard je istoveten z: prEN 16856
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 16856:2015 en,fr,de

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

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oSIST prEN 16856:2015
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oSIST prEN 16856:2015
EUROPEAN STANDARD
DRAFT
prEN 16856
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 13.220.10
English Version
Portable aerosol dispenser for fire extinguishing purposes
Générateur aérosol à fonction extinctrice Löschspraydose

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, 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

© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16856:2015 E

worldwide for CEN national Members.
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oSIST prEN 16856:2015
prEN 16856:2015 (E)
Contents Page

Foreword .............................................................................................................................................. 4

1 Scope....................................................................................................................................... 5

2 Normative references ............................................................................................................ 5

3 Terms and definitions ............................................................................................................ 5

4 Contents of the extinguishing aerosol dispenser .............................................................. 7

4.1 Extinguishing medium........................................................................................................... 7

4.2 Propellant ................................................................................................................................ 7

5 Construction, design and prototype testing ....................................................................... 7

5.1 Operation ................................................................................................................................ 7

5.2 Body and closure ................................................................................................................... 8

5.2.1 Body ........................................................................................................................................ 8

5.2.2 Closure .................................................................................................................................... 8

5.3 Corrosion resistance ............................................................................................................. 9

5.3.1 External corrosion ................................................................................................................. 9

5.3.2 Internal corrosion ................................................................................................................... 9

5.3.3 Chemical and pressure stability ........................................................................................... 9

5.4 Impact resistance ................................................................................................................... 9

5.5 Resistance to shock and mechanical damage ................................................................... 9

5.6 Test pressure .......................................................................................................................... 9

5.7 Burst pressure ........................................................................................................................ 9

5.8 Life ........................................................................................................................................... 9

5.9 Dielectric test ........................................................................................................................ 10

5.9.1 General .................................................................................................................................. 10

5.9.2 Required performance ......................................................................................................... 10

6 Filling requirements ............................................................................................................. 10

6.1 Media tolerance .................................................................................................................... 10

6.2 Filling pressure .................................................................................................................... 10

6.3 P(T ) .................................................................................................................................... 10

max

7 Performance ......................................................................................................................... 10

7.1 Delay on operation ............................................................................................................... 10

7.2 Duration of discharge .......................................................................................................... 10

7.3 Minimum discharge of contents ......................................................................................... 10

7.4 Leakage rate ......................................................................................................................... 11

7.5 Retention of charge following partial discharge .............................................................. 11

7.6 Fire extinguishing performance rating — Ratings ........................................................... 11

7.6.1 General .................................................................................................................................. 11

7.6.2 Class A rating ....................................................................................................................... 11

7.6.3 Class B rating ....................................................................................................................... 11

7.6.4 Class F rating ....................................................................................................................... 11

7.7 Effective throw ..................................................................................................................... 11

8 Production tests ................................................................................................................... 11

8.1 General .................................................................................................................................. 11

8.2 Final inspection of filled extinguishing aerosol dispensers ........................................... 11

8.2.1 General .................................................................................................................................. 11

8.2.2 Hot water bath method ........................................................................................................ 12

8.2.3 Alternative hot final test method ........................................................................................ 12

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8.2.4 Cold final test method ......................................................................................................... 12

8.3 Burst test .............................................................................................................................. 12

8.4 Crimped closures ................................................................................................................. 12

8.5 Discharge test ...................................................................................................................... 13

8.6 Leak test ................................................................................................................................ 13

9 Colour and marking of extinguishing aerosol dispensers .............................................. 13

9.1 Colour .................................................................................................................................... 13

9.2 Marking - Primary information ............................................................................................ 13

9.3 Marking - Secondary information ....................................................................................... 14

Annex A (normative) Test conditions .............................................................................................. 18

A.1 General .................................................................................................................................. 18

A.2 Storing and temperature ..................................................................................................... 18

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 .................................................................................... 21

Annex E (normative) Pressure tests for bodies ............................................................................. 22

E.1 Test for resistance to pressure .......................................................................................... 22

E.2 Minimum burst test .............................................................................................................. 22

Annex F (normative) Force to open valve ....................................................................................... 23

Annex G (normative) Discharge tests ............................................................................................. 24

G.1 Duration of discharge and minimum discharge of contents ........................................... 24

G.2 Intermittent discharge and minimum discharge of contents .......................................... 25

G.3 Effective throw ..................................................................................................................... 25

Annex H (normative) Test for retention of charge after partial discharge .................................. 26

Annex I (normative) Fire extinguishing performance tests .......................................................... 27

I.1 General .................................................................................................................................. 27

I.2 Schedule for testing ............................................................................................................. 27

I.3 Class A fire test .................................................................................................................... 27

I.3.1 Characteristics of test fire ................................................................................................... 27

I.3.2 Test conditions ..................................................................................................................... 30

I.3.3 Test procedure ..................................................................................................................... 31

I.4 Class B fire test .................................................................................................................... 31

I.4.1 Characteristics of test fire ................................................................................................... 31

I.4.2 Test conditions ..................................................................................................................... 32

I.4.3 Test procedure ..................................................................................................................... 33

I.5 Class F fire test .................................................................................................................... 33

I.5.1 General .................................................................................................................................. 33

I.5.2 Characteristics of test fire ................................................................................................... 33

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

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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Foreword

This document (prEN 16856:2015) 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.

It specifies the requirements for non-refillable portable aerosol dispensers for fire extinguishing

purposes.

This draft standard has been written with the aim of producing a specification for relatively

inexpensive small disposable, aerosol dispensers for fire extinguishing purposes with an acceptable

minimum 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. The standard therefore is unlikely to meet the requirements of the various specifying

authorities for more comprehensive protection. 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 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 H 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 657-14, Hot-rolled steel sections — Part 14: Hot-finished structural hollow sections —

Dimensions and sectional properties
ISO 4470, Sawn timber — Determination of the average moisture content of a lot
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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

Note 1 to entry: Extinguishing aerosol dispensers are designed to be discarded after any use and are bound

not to be refilled.
3.2
batch

definite quantity of products or components produced at one time under conditions that are presumed

uniform

Note 1 to entry: The circumstances under which the conditions can be presumed cannot be generally stated;

for example, a change in the material or tool used in an interruption in the manufacturing process can give rise to

different conditions, see ISO 3534-2.
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3.3
body

seamless metallic container of the extinguishing aerosol dispenser not fitted with its accessories, such

as valves, having a maximum total capacity of 1 000 ml
3.4
valve

self-closing release device allowing the discharge of the extinguishing media to be discontinuous

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
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
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 7.6.2,

7.6.3 and 7.6.4
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
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3.15
safety device

part that needs to be broken or removed before the extinguishing aerosol dispenser, and be activated

3.16
security seal

part that is broken when removing the safety device and once broken cannot be replaced

3.17
minimum operating temperature
min

minimum temperature declared by the manufacturer at which the extinguishing aerosol dispenser will

operate
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.
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 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.
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5.1.3 The design of the extinguishing aerosol dispenser shall allow rapid identification of whether or

not it has been used.
5.1.4 The extinguishing aerosol dispenser shall operate without inversion.

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 20 and 100 N, see Annex F. This security seal shall be such that it will not be

broken or damaged in normal service and cannot be replaced 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 not exceed 75 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 1000 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.
Key
1 crimp depth
2 crimp diameter
3 neck ring
Figure 1 — Crimp diameter and depth
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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

progressive corrosion or other chemical degradation, no pressure shall be released and shall operate

as intended. The discharge time shall be equal to or greater than the manufacturer’s specified

minimum.
5.3.2 Internal corrosion

After storage in accordance with B.2, the extinguishing aerosol dispenser shall operate as intended.

The discharge time shall be equal to or greater than the manufacturer’s specified minimum. After

being discharged, the extinguishing aerosol dispenser shall be checked internally for corrosion. There

shall be no signs of progressive corrosion, however uniform oxidation may occur.
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.
5.4 Impact resistance

The extinguishing aerosol dispenser (with protective cap if used) 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 within

5 min of being subjected to the tests in Annex C. The discharge time shall be + 15 % 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

The extinguishing aerosol dispenser shall show no detectable leakage resulting in loss of pressure

when tested in accordance with Annex D. The extinguishing aerosol dispenser shall operate as

intended. The discharge time shall be + 15 % of the actual 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 visible permanent deformation when tested in accordance with E.1.

5.7 Burst pressure

The minimum burst pressure of the body, 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.2. The body

shall not fragment or eject any parts.
5.8 Life

An extinguishing aerosol dispenser has a maximum life of 39 months from the date of manufacture.

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5.9 Dielectric test
5.9.1 General

The dielectric test is designed to determine the electrical conductivity of the extinguishing aerosol

dispenser during the test when performed in accordance with Annex G.
5.9.2 Required performance

When the extinguishing aerosol dispenser is in operation and the metallic plate is live, the current

between the handle 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.
6 Filling requirements
6.1 Media tolerance

The filling tolerance of the gross contents shall be + 5 % for powder extinguishing media and + 0/-3 %

for all other extinguishing media.

The filling tolerance for each individual constituent of the gross content shall be + 2 %.

6.2 Filling pressure
The filling pressure shall be + 0,5 bar of the working pressure at 20 °C.
6.3 P(T )
max

The filling pressure, when filled to the upper tolerance, shall be such that the maximum developed

pressure at 50 °C shall not exceed 13,2 bar.
7 Performance
7.1 Delay on operation

Not more than 2 s shall elapse between activation of the valve and commencement of the discharge

when tested in accordance with G.1.
7.2 Duration of discharge

The duration of effective discharge shall be not less than 6 s when tested in accordance with G.1

(continuous discharge).
7.3 Minimum discharge of contents
The extinguishing aerosol dispenser, when operated
...

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