ШДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ
Наказом Міністерства економічного розвитку і торгівлі України
від 30.12.2014 № 1494
EN 1568-3:2008
en: Fire extinguishing media- Foam concentrates- Part 3: Specification for low
expansion foam concentrates for surface application to water-immiscible liquids
прийнято як національний стандарт
методом підтвердження за позначенням
ДСТУ EN 1568-3:2014
uk: Вогнегасні речовини. Пін ©утворювачі. Частина 3. Вимоги до
піноутворювачів, призначених для гасіння водонерозчинних горючих рідин
піною низької кратності, що подається на поверхню
(EN 1568-3:2008 ; EN 1568-3:2008/АС:2010, IDT)
З наданням чинності від 2016-01-01
EUROPEAN STANDARD
NORME EUROPEENNE
EUROPAISCHE NORM
EN 1568-3:2008/AC
March 2010
Mars 2010
Marz 2010
ICS 13.220.10
English version
Version Frangaise
Deutsche Fassung
Fire extinguishing media - Foam concentrates - Part 3: Specification for low
expansion foam concentrates for surface application to water-immiscible
liquids
Agents extincteurs - Emulseurs - Partie 3:
Specifications pour les emulseurs bas
foisonnement destines a une application a
la surface de liquides n'ayant pas d'affinite
pour I'eau
Feuerloschmittel - Schaummittel - Teil 3:
Anforderungen an Schaummittel zur
Erzeugung von Schwerschaum zum
Aufgeben auf nicht-polare (mit Wasser
nicht mischbare) Flussigkeiten
This corrigendum becomes effective on 17 March 2010 for incorporation in the three official language versions of the EN.
Ce corrigendum prendra effet Ie 17 mars 2010 pour incorporation dans les trois versions linguistiques officielles de la EN.
Die Berichtigung tritt am 17.Marz 2010 zur Einarbeitung in die drei offiziellen Sprachfassungen der EN in Kraft.
EUROPEAN COMMITTEE FOR STANDARDIZATION
СОМ1ТЁ EUROPEEN DE NORMALISATION
EUROPAISCHES KOMITEE FOR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nationa' Memoers.
Tous droits d'exploitation sous quelque forme et de quelque maniere que ce sort reserves dans ie monde entier aux membres nationaux du CEN.
Alle Rechte der Verwertung, gleich in welcher Form und in welchem Verfahren. snd «ctwci oer nabonalen Mitgliedern von CEN vorbehalten.
Modification to the Foreword
In the paragraph after the list of standards, replace the reference to EC directive "2006/60/EEC" with "2006/122/EC" to read as follows:
"As fire fighting foams are chemical agents or chemical preparations EC directives 1967/548/EEC, 1999/45/EEC, Regulation (EC) 1907/2006 (REACH) and 2006/122/EC apply and should be taken into account.".
Modification to the Introduction
In the last paragraph, replace the reference to EC directive "2006/60/EEC" with "2006/122/EC" to read as follows:
"It is extremely important that the foam concentrate after dilution with water to the recommended concentration should not in normal usage present a significant toxic hazard to life in relation to the environment. The current versions of EC directives 67/548/EEC, 2006/122/EC, 1999/45/EEC and Regulation (EC) 1907/2006 apply when considering the testing of ecotoxicological properties and safety in the work environment."
.
EUROPEAN STANDARD NORME EUROPEENNE
EUROPAISCHE NORM
ICS 13.220.10
EN 1568-3
March 2008
Supersedes EN 1568-3:2000
English Version
Fire extinguishing media - Foam concentrates - Part 3:
Specification for low expansion foam concentrates for surface
application to water-immiscible liquids
Agents extincteurs - Emulseurs - Partie 3: Specifications
pour les emulseurs bas foisonnement destines a une
application a la surface de liquides n'ayant pas d'affinite
pour I'eau
Feuerlbschmittel - Schaummittel - Teil 3: Anforderungen an
Schaummittel zur Erzeugung von Schwerschaum zum
Aufgeben auf nicht-polare (mit Wasser nicht mischbare)
FlOssigkeiten
This European Standard was approved by CEN on 5 January 2008.
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 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 Management Centre has the same status as the official versions.
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
СОМІТЁ EUROPEEN DE NORMALISATION
EUROPAISCHES KOMITEE FUR NORMUNG
M
Ref. No. EN 1568-3:2008: E
anagement Centre: rue de Stassart, 36 B-1050 Brussels© 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members
.Contents Page
Foreword 3
Introduction 4
Scope 5
Normative references 5
Terms and definitions 5
Sediment in the foam concentrate 7
Viscosity of the foam concentrate 7
pH of the foam concentrate 7
Surface tension of the foam solution 7
Spreading coefficient of the foam solutions 7
Expansion and drainage of foam 8
Test fire performance 8
Container marking 9
(informative) Grades of foam concentrate and performance 11
(normative) Preliminary sampling of foam concentrates 12
(normative) Determination of percentage sediment 13
(normative) Determination of Viscosity for pseudo-plastic foam concentrates 14
(normative) Temperature conditioning of foam concentrates 16
(normative) Determination of surface tension and spreading coefficient 19
(normative) Determination of expansion and drainage time 20
(normative) Determination of test fire performance 25
(informative) Small scale fire test 30
(informative) Description of a radiation measurement method 40
(informative) A-Deviations 44
Bibliography 46Foreword
This document (EN 1568-3:2008) has been prepared by Technical Committee CEN/TC 191 "Fixed firefighting systems", the secretariat of which is held by BSI.
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 September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008.
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 EN 1568-3:2000.
This European Standard is one of the series specifying requirements for fire extinguishing media in common use. This series includes the following:
EN 25923, Fire protection — Fire extinguishing media — Carbon dioxide (ISO 5923:1989)
EN 27201-1, Fire protection — Fire extinguishing media — Halogenated hydrocarbons — Part 1: Specifications for halon 1211 and halon 1301 (ISO 7201-1:1989)
EN 27201-2, Fire protection — Fire extinguishing media — Halogenated hydrocarbons — Part 2: Code of practice for safe handling and transfer procedures (ISO 7201-2:1991)
EN 615, Fire protection — Fire extinguishing media — Specification for powders (other than Class D powders)
This standard is Part 3 of EN 1568 which has the general title "Fire extinguishing media - Foam concentrates". The other parts are:
Part 1 - Specification for medium expansion foam concentrates for surface application to water- immiscible liquids
Part 2 - Specification for high expansion foam concentrates for surface application to water- immiscible liquids
Part 4 - Specification for low expansion foam concentrates for surface application to water- miscible liquids
As fire fighting foams are chemical agents or chemical preparations EC Directives 1967/548/EEC, 1999/45/EEC, Regulation (EC) 1907/2006 (REACH) and 2006/60/EEC apply and should be taken into account.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom.
Introduction
Classes of fire are defined in EN 2 as follows:
Class A: fires involving solid materials, usually of an organic nature, in which combustion normally takes place with the formation of glowing embers;
Class B: fires involving liquids or liquefiable solids;
Class C: fires involving gases;
Class D: fires involving metals;
Class F: fires involving cooking media (vegetable or animal oils and fats) in cooking appliances.
Fire-fighting foams are widely used to control and extinguish Class В fires and to inhibit re-ignition. These foams can also be used for prevention of ignition of flammable liquids and, in certain conditions, to extinguish Class A fires.
Foams can be used in combination with other extinguishing media, particularly gaseous media and powders, which are the subject of other European Standards (see Foreword).
These specifications have been designed to ensure that fire extinguishing media have the minimum useful fire fighting capability. The user should ensure that the foam concentrates are used accurately at the concentration recommended by the manufacturer. Fire performances indicated by this standard cannot replicate practical fire situations.
Foam concentrates of different types and manufacture should not be mixed.
It should be noted that some combinations of extinguishing powder and foam can lead to unacceptable loss of efficiency, caused by unfavourable interaction of the chosen media when applied simultaneously or successively to the fire.
It is extremely important that the foam concentrate after dilution with water to the recommended concentration should not in normal usage present a significant toxic hazard to life in relation to the environment. The current versions of EC Directives 67/548/EEC, 2006/60/EEC, 1999/45/EEC and Regulation (EC) 1907/2006 apply when considering the testing of ecotoxilogical properties and Safety in the work environment.Scope
This document specifies requirements for chemical and physical properties, and minimum performance requirements of low expansion foams suitable for surface application to water-immiscible liquids. Requirements are also given for marking.
NOTE Some concentrates conforming to this part of EN 1568 can also conform to other parts and therefore can also be suitable for application as medium and/or high expansion foams, and for application at low expansion to water-miscible liquids.
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 ISO 3104, Petroleum products — Transparent and opaque liquids — Determination of kinematic viscosity and calculation of dynamic viscosity (ISO 3104:1994)
EN ISO 3219, Plastics - Polymers/resins in the liquid state or as emulsions or dispersions - Determination of viscosity using a rotational viscometer with defined shear rate (ISO 3219:1993)
EN ISO 3696, Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
ISO 304, Surface active agents — Determination of surface tension by drawing up liquid films
ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
Terms and definitions
For the purposes of this document, the following terms and definitions apply.
25 %/50 % drainage time
time taken for 25/50 % of the volume of the original foam solution to drain out of the generated foam
expansion
expansion value
expansion ratio
ratio of the volume of foam to the volume of the foam solution from which it was made
low expansion foam
foam which has an expansion ratio less than 20
medium expansion foam
foam which has an expansion ratio greater than or equal to 20 but less than 200
high expansion foam
foam which has an expansion ratio greater than or equal to 200
fire-fighting foam
aggregate of air filled bubbles formed from a foam solution used for fire-fighting
foam concentrate
liquid which is diluted with water to produce foam solution
NOTE Annex A gives information on grades of foam concentrate.
foam solution
solution of foam concentrate in water
3.9
gentle application
application (of foam from the test nozzle) indirectly to the surface of the fuel from a backboard
NOTE This definition of gentle application relates to the fire test procedures used in EN 1568 parts 3 and 4. In practice fire-fighting systems foam can also be applied gently by fixed foam pourers or by indirect application via a tank wall or other surface.
3.10
forceful application
application (of foam from the test nozzle) directly onto the surface of the fuel
3.11
sediment
insoluble particles in the foam concentrate
3.12
spreading coefficient
value which indicates the ability of one liquid to spread spontaneously across the surface of another
NOTE The spreading coefficient indicates the possibility of film-forming, but it does not measure its quality.
3.13
Newtonian foam concentrates
foam concentrates which have a viscosity which is independent of the shear rate
3.14
pseudo-plastic foam concentrates
foam concentrates which have a viscosity which decreases with increasing shear rate
3.15
surface tension
tension within the interface between a liquid and air
3.16
interfacial tension
tension within the interface between two immiscible liquids
Sediment in the foam concentrate
Sediment before ageing
Any sediment in the foam concentrate sampled in accordance with Annex B, but not aged in accordance with C.1, shall be dispersible through a 180 pm sieve, and the percentage volume of sediment shall be not more than 0,25 % when tested in accordance with Annex C.
Sediment after ageing
Any sediment in the foam concentrate sampled in accordance with Annex B, and aged in accordance with C.1, shall be dispersible through a 180 pm sieve and the percentage volume of sediment shall be not more than 1,0 % when tested in accordance with Annex C.
Viscosity of the foam concentrate
Newtonian foam concentrates
The viscosity of the foam concentrate at the lowest temperature for use claimed by the manufacturer shall be determined in accordance with EN ISO 3104. If the viscosity is >200 mm2 s’1, the container shall be marked in accordance with Clause 11 I).
Pseudo-plastic foam concentrates
The viscosity of the foam concentrate shall be determined in accordance with Annex D. If the viscosity at the lowest temperature for use is greater than or equal to 120 mPa.s at 375 s'1, the container shall be marked in accordance with Clause 11m).
pH of the foam concentrate
The pH of the foam concentrate sampled in accordance with Annex В shall be not less than 6,0 and not more than 9,5 at (20 ± 1) °С.
Surface tension of the foam solution
The surface tension (determined in accordance with F.2.1) of the foam solutions prepared using top and bottom half-samples (see E.4) of the foam concentrate sampled in accordance with Annex В and conditioned in accordance with Annex E shall be not less than 0,95 times and not more than 1,05 times the surface tension of the foam solution prepared using the sampled foam concentrate.
Spreading coefficient of the foam solutions
NOTE The spreading coefficient indicates the possibility of film-forming, but it does not measure its quality. Certain properties of film-forming foams are not defined are note defined by this standard.
Before temperature conditioning
The foam solution prepared using the concentrate, if it is claimed by the supplier to be "aqueous filmforming", sampled in accordance with Annex В shall have a positive spreading coefficient over cyclohexane when tested in accordance with F.2.2.
After temperature conditioning
The foam solution prepared using top and bottom half-samples, see E.4, of the foam concentrate, if it is claimed by the supplier to be "aqueous film-forming”, sampled in accordance with Annex В and conditioned in accordance with Annex E, shall have a positive spreading coefficient over cyclohexane when tested in accordance with F.2.2.
Expansion and drainage of foam
Before temperature conditioning
The foam produced from the foam solution prepared from the foam concentrate sampled in accordance with Annex B, at the supplier's recommended concentration with potable water shall be tested in accordance with Annex G. If appropriate, a further sample for the same concentration made with the simulated sea water in accordance with G.4 shall also be tested.
After temperature conditioning
The foams produced from the solutions prepared with potable water by using top and bottom halfsamples, see E.4, of foam concentrate, sampled in accordance with Annex B, at the supplier's recommended concentration, when tested in accordance with Annex G, shall have the following;
expansions which do not differ from each other or from the value obtained in 9.1 using potable water (i.e. before temperature conditioning) by more than 20 % of the value obtained in 9.1 using potable water; and
25 % drainage times which do not differ from each other or from the value obtained in 9.1 using potable water (i.e. before temperature conditioning) by more than 20 % of the value obtained in 9.1 using potable water.
If appropriate repeat the tests using top and bottom half-samples, see E.4, of foam concentrate, sampled in accordance with Annex B, at the supplier's recommended concentration, using foam solutions prepared with the simulated sea water in accordance with G.4. These foam solutions shall have the following:
expansions which do not differ from each other or from the value obtained in 9.1 using the simulated sea water (i.e. before temperature conditioning) by more than 20 % of the value obtained in 9.1 using the simulated sea water in accordance with G.4; and,
25 % drainage times which do not differ from each other or from the value obtained in 9.1 using the simulated sea water (i.e. before temperature conditioning) by more than 20 % of the value obtained in 9.1 using the simulated sea water in accordance with G.4.
Test fire performance
The foam produced from the foam solutions, prepared using the foam concentrate sampled in accordance with Annex В at the supplier's recommended concentration with potable water and if appropriate at the same concentration with the simulated sea water in accordance with G.4, shall have an extinguishing performance class and burn-back resistance level as specified in Table 1 when tested in accordance with H.1 and H.2 and/or H.3 as appropriate.
NOTE 1 The values obtained with sea water can differ from those obtained with potable water.
NOTE 2 Annex I describes a small scale fire test which can be suitable for quality control purposes.
Table 1 — Maximum extinction times and minimum burn-back times
Times in minutes
|
Extinguishing performance class |
Burn-back resistance level |
Gentle application test (See H.2) |
Forceful application test (See H.3) |
||||
|
Extinction time not more than |
Burn-back time not less than |
Extinction time not more than |
Burn-back time not less than |
||||
|
I |
A |
not applicable |
3 |
10 |
|||
|
В |
|
15 |
3 |
Not Applicable |
|||
|
C |
|
10 |
3 |
||||
|
D |
|
5 |
3 |
||||
|
II |
A |
not applicable |
4 |
10 |
|||
|
В |
|
15 |
4 |
Not Applicable |
|||
|
C |
|
10 |
4 |
||||
|
D |
|
5 |
4 |
||||
|
III |
В |
5 |
15 |
Not Applicable |
|||
|
C |
5 |
10 |
|||||
|
D |
5 |
5 |
|||||
