SIST EN 1568-4:2018
(Main)Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids
Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids
This draft European Standard specifies requirements for chemical and physical properties, and minimum performance requirements of low expansion foams suitable for surface application to water-miscible liquids. Requirements are also given for marking.
IMPORTANT - In this part of the document, the fire performance is tested using acetone and isopropanol as the fuel, which also forms the basis for the performance classification. However, there are a large number of water-miscible liquids, which have more or less different properties to acetone and isopropanol. It has been shown by tests using other fuels that the performance of various foams can differ considerably. Examples of such fuel is Methyl Ethyl Ketone (MEK). It is therefore essential that the user checks for any unfavourable or unacceptable loss of efficiency when the foam is used against fires in any other water-miscible fuels than acetone and isopropanol respectively. The fire test conditions and procedure given in J.2 can be used in order to achieve results comparative with acetone and isopropanol respectively and related requirements.
It is also essential for the user to note that other fuel depths and methods of application than those specified in I.2 can cause considerable loss of efficiency and these matters should be carefully considered by the user when assessing the suitability for particular applications.
Type approval needs to be executed by independent third party laboratories accredited to EN ISO/IEC 17025.
WARNING: Any type approval according to this standard is invalidated by any change in composition of the approved product.
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.
Feuerlöschmittel - Schaummittel - Teil 4: Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf mit Wasser mischbare Flüssigkeiten
Dieser Europäische Norm-Entwurf legt Anforderungen an chemische und physikalische Eigenschaften und Mindestanforderungen an die Leistungsfähigkeit von Schwerschäumen fest, die für die Aufgabe auf mit Wasser mischbare, brennbare Flüssigkeiten geeignet sind. Anforderungen an die Kennzeichnung sind ebenfalls festgelegt.
WICHTIG — In diesem Teil der Europäischen Norm wird die Löschwirksamkeit mit Azeton und Isopropanol als Brennstoffe geprüft, die ebenfalls auch als Grundlage für die Einteilung in Löschleistungsstufen verwendet werden. Es gibt jedoch eine große Anzahl von wassermischbaren (polaren) Flüssigkeiten, die gegenüber Azeton bzw. Isopropanol mehr oder weniger unterschiedliche Eigenschaften aufweisen. Es wurde bei Prüfungen unter Verwendung anderer Brennstoffe nachgewiesen, dass verschiedene Schaummittel in ihrer Löschleistung beträchtlich abweichen können. Beispiel für einen solchen Brennstoff ist Methyl-Ethyl-Keton (MEK). Es ist daher von Bedeutung, dass der Anwender beim Einsatz von Schaum gegen Brände mit jedem anderen wassermischbaren (polaren) Brennstoff als Azeton bzw. Isopropanol diese auf unvorteilhaften oder unannehmbaren Wirksamkeitsverlust überprüft. Es können die in J.2 angegebenen Bedingungen und Verfahren der Brandprüfung angewendet werden, um Ergebnisse zu erreichen, die mit Azeton bzw. Isopropanol und zugehörigen Anforderungen vergleichbar sind.
Es ist für den Anwender auch von Bedeutung, dass er beachtet, dass andere, von I.2 abweichende, Brennstofftiefen und Aufgabeverfahren einen beträchtlichen Wirkungsverlust verursachen können, und diese Faktoren sollten vom Anwender sorgfältig beachtet werden, wenn er die Eignung für eine besondere Aufgabe bewertet.
Die Typgenehmigung muss durch ein unabhängiges Prüflaboratorium erfolgen.
WARNUNG: JEDE TYPGENEHMIGUNG NACH DIESER NORM WIRD BEI ÄNDERUNG DER BESTANDTEILE DES ZUGELASSENEN PRODUKTES UNGÜLTIG.
ANMERKUNG Einige diesem Teil von EN 1568 entsprechende Schaummittel können auch mit den anderen Teilen übereinstimmen und deshalb für die Anwendung als Mittel- und/oder Leichtschäume geeignet sein.
Agents extincteurs - Émulseurs - Partie 4 : Spécifications pour les émulseurs bas foisonnement destinés à une application à la surface de liquides ayant une affinité pour l’eau
La présente Norme européenne spécifie les exigences en matière de propriétés chimiques, physiques et de performances minimales des émulseurs bas foisonnement convenant à une application à la surface des liquides ayant une affinité pour l’eau. Des exigences concernant les marquages sont également spécifiées.
IMPORTANT - Les performances au feu sont contrôlées en utilisant de l’acétone et de l’alcool isopropylique comme combustible, ce qui constitue également la base de la classification des performances. Il existe toutefois un grand nombre de liquides ayant une affinité avec l’eau, dont les propriétés sont plus ou moins différentes de celles de l’acétone et de l’alcool isopropylique. Des essais effectués avec d’autres combustibles ont également permis de démontrer que les performances des diverses mousses pouvaient varier de façon considérable. La méthyléthylcétone (MEK) est un exemple de ces combustibles. Il est donc essentiel que l’utilisateur vérifie que la mousse ne présente pas une perte d’efficacité défavorable ou inacceptable lorsqu’elle est employée pour des feux impliquant des combustibles ayant une affinité avec l’eau, autres que l’acétone et l’alcool isopropylique. Les conditions d’essai au feu et le mode opératoire donnés en H.2 peuvent être utilisés pour obtenir des résultats comparatifs avec l’acétone et l’alcool isopropylique et les exigences correspondantes.
Il est également essentiel que l’utilisateur note que des hauteurs de combustible et des méthodes d’application autres que celles spécifiées en H.2 peuvent entraîner une perte d’efficacité considérable et il convient que ces problèmes soient considérés avec soin par l’utilisateur lors de l’évaluation de l’adaptation à des applications particulières.
AVERTISSEMENT - Toute homologation de type conforme à la présente norme est invalidée dès lors qu’une modification est apportée à la composition du produit homologué.
NOTE Il se peut que certains émulseurs conformes à la présente partie de la série de normes EN 1568 soient également conformes à d’autres parties de cette série de normes et qu’ils conviennent donc à une application comme émulseurs moyen et/ou haut foisonnement.
Gasila - Penila - 4. del: Specifikacija za penila za težko peno za površinsko uporabo pri tekočinah, topnih v vodi
V tem osnutku evropskega standarda so določene zahteve glede kemijskih in fizikalnih lastnosti ter minimalne zahteve glede delovanja nizkoekspanzijskih pen, primernih za površinsko uporabo pri tekočinah, ki se mešajo z vodo. Navedene so tudi zahteve za označevanje.
POMEMBNO – v tem delu dokumenta je preskus odziva na ogenj izveden z acetonom in izopropanolom kot gorivom, ki tvori tudi osnovo za klasifikacijo požarne odpornosti. Toda obstaja veliko tekočin, ki se mešajo z vodo in imajo bolj ali manj različne lastnosti glede na aceton in izopropanol. S preskusi z drugimi gorivi je bilo ugotovljeno, da se lahko delovanje različnih pen znatno razlikuje. Primer takšnega goriva je metiletil keton (MEK). Zato je pomembno, da uporabnik preveri, ali je prišlo do kakršne koli neugodne ali nesprejemljive izgube učinkovitosti, ko je pena uporabljena pri požarih, do katerih pride zaradi kakršnih koli drugih goriv, ki se mešajo z vodo in niso aceton ali izopropanol. Pogoji preskusa požarne odpornosti in postopek, navedeni v dodatku J.2, se lahko uporabijo za doseganje rezultatov, primerljivih s posameznimi rezultati acetona in izopropanola ter povezanimi zahtevami.
Poleg tega je pomembno tudi, da uporabnik upošteva, da lahko druge globine goriva in metode uporabe, ki so drugačne od tistih, ki so določene v dodatku I.2, povzročijo znatno izgubo učinkovitosti, zato mora uporabnik te zadeve skrbno upoštevati, ko ocenjuje primernost za določene uporabe.
Tipsko odobritev morajo izvesti neodvisni laboratoriji tretjih oseb, ki so akreditirani v skladu s standardom EN ISO/IEC 17025.
OPOZORILO: Vsakršna tipska odobritev v skladu s tem standardom je neveljavna, če pride do kakršne koli spremembe v sestavi odobrenega izdelka.
OPOMBA Nekateri koncentrati, ki so skladni s tem delom standarda EN 1568, so lahko skladni tudi z drugimi deli in so zato lahko primerni tudi za uporabo kot srednje- in/ali visokoekspanzijske pene.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Feuerlöschmittel - Schaummittel - Teil 4: Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf mit Wasser mischbare FlüssigkeitenAgents extincteurs - Émulseurs - Partie 4 : Spécifications pour les émulseurs bas foisonnement destinés à une application à la surface de liquides ayant une affinité pour l’eauFire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids13.220.10Gašenje požaraFire-fightingICS:Ta slovenski standard je istoveten z:EN 1568-4:2018SIST EN 1568-4:2018en,fr,de01-maj-2018SIST EN 1568-4:2018SLOVENSKI
STANDARDSIST EN 1568-4:2008/AC:2010SIST EN 1568-4:20081DGRPHãþD
SIST EN 1568-4:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1568-4
February
t r s z ICS
s uä t t rä s r Supersedes EN
s w x zæ vã t r r zEnglish Version
Fire extinguishing media æ Foam concentrates æ Part
vã Specification for low expansion foam concentrates for surface application to wateræmiscible liquids Agents extincteurs æ Émulseurs æ Partie
v ã Spécifications pour les émulseurs bas foisonnement destinés à une application à la surface de liquides ayant une affinité pour l 5eau
Feuerlöschmittel æ Schaummittel æ Teil
vã Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf mit Wasser mischbare Flüssigkeiten This European Standard was approved by CEN on
s z September
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s w x zæ vã t r s z ESIST EN 1568-4:2018
EN 1568-4:2018 (E) 2 Contents Page European foreword . 5 Introduction . 7 1 Scope . 8 2 Normative references . 8 3 Terms and definitions . 9 4 Sediment in the foam concentrate . 10 4.1 Sediment before ageing . 10 4.2 Sediment after ageing . 10 5 Freezing point. 11 6 Viscosity of the foam concentrate . 11 6.1 Newtonian foam concentrates . 11 6.2 Pseudo-plastic foam concentrates . 11 7 pH of the foam concentrate . 11 8 Surface tension of the foam solution . 11 9 Stability/separation test of foam concentrate . 11 10 Determination of expansion and drainage time . 11 10.1 Before temperature conditioning . 11 10.2 After temperature conditioning . 11 11 Test fire performance . 12 12 Occupation health . 12 13 Technical data sheet . 12 14 Container marking . 13 Annex A (informative)
Grades of foam concentrate . 14 Annex B (normative)
Sampling of foam concentrates . 15 Annex C (normative)
Determination of percentage sediment . 16 C.1 Sampling . 16 C.2 Apparatus . 16 C.3 Procedure. 16 Annex D (normative)
Determination of viscosity for pseudo-plastic foam concentrates . 17 D.1 Pseudo-plastic foam concentrates . 17 D.2 Viscosity determination. 17 D.2.1 Apparatus . 17 D.2.2 Test temperatures . 17 D.2.3 Viscosity measurement . 17 D.2.4 Results . 18 Annex E (normative)
Temperature conditioning of foam concentrates . 19 E.1 General . 19 SIST EN 1568-4:2018
EN 1568-4:2018 (E) 3 E.2 Low temperature conditioning . 19 E.2.1 Apparatus . 19 E.2.2 Procedure . 19 E.3 High-temperature conditioning . 19 E.3.1 Apparatus . 19 E.3.2 Procedure . 19 E.4 Division into top and bottom half-samples . 20 E.4.1 Apparatus . 20 E.4.2 Procedure . 21 Annex F (normative)
Determination of surface tension . 22 F.1 Solution of foam concentrate . 22 F.2 Procedure — Surface tension . 22 Annex G (normative)
Determination of expansion and drainage time . 23 G.1 Apparatus . 23 G.2 Temperature conditions . 23 G.3 Procedure . 23 G.4 Simulated fresh and sea water . 24 Annex H (normative)
Determination of test fire performance . 29 H.1 General . 29 H.2 General conditions . 29 H.2.1 Test series and criteria for success . 29 H.2.2 Temperature and wind speed . 29 H.2.3 Records . 29 H.2.4 Foam solution. 30 H.2.5 Fuel . 30 H.3 Fire test . 30 H.3.1 Apparatus . 30 H.3.2 Test procedure . 31 Annex I (informative)
Small-scale fire test . 33 I.1 Apparatus . 33 I.2 Test procedure . 34 I.2.1 Test conditions . 34 I.2.2 Set-up . 34 I.2.3 Fire test . 34 Annex J (informative)
Description of a radiation measurement method . 43 J.1 Evaluation . 43 J.2 General arrangement of test . 43 J.3 Technical data for radiometers . 44 J.4 Procedure . 44 Annex K (normative)
Freezing point determination . 47 K.1 General . 47 K.2 Apparatus . 47 K.3 Procedure . 47 K.4 Example of a temperature against time curve for evaluation . 48 Annex L (normative)
Stability/Separation test of foam concentrate . 49 L.1 General . 49 L.2 Apparatus . 49 L.3 Procedure . 49 Annex M (normative)
Occupational health and ecotoxicological testing . 50 SIST EN 1568-4:2018
EN 1568-4:2018 (E) 4 Annex N (informative)
Example of a technical data sheet . 51 Annex O (informative)
A-Deviations . 53 Bibliography . 55
SIST EN 1568-4:2018
EN 1568-4:2018 (E) 5 European foreword This document (EN 1568-4:2018) 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 August 2018, and conflicting national standards shall be withdrawn at the latest by November 2019. 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. This document supersedes EN 1568-4:2008. In comparison with the previous edition, the following significant changes have been made: — the interfacial tension and spreading coefficient test was removed; — the freezing point test was introduced; — the stability/separation test of foam concentrate was introduced; — the occupational health and ecotoxicological testing was introduced; — an example of technical data sheet was included; and — setting-up procedures of foam nozzle for the determination of expansion and drainage times have been modified in the light of ISO 7203. This document is Part 4 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 3: Specification for low expansion foam concentrates for surface application to water-immiscible liquids. This European Standard is one of a series of standards specifying requirements for fire extinguishing media in common use. This series includes the following standards: — EN ISO 5923, Equipment for fire protection and fire fighting — Fire extinguishing media — Carbon dioxide (ISO 5923); — 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); SIST EN 1568-4:2018
EN 1568-4:2018 (E) 6 — EN 615, Fire protection — Fire extinguishing media — Specifications for powders (other than class D powders). 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, 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 the United Kingdom. SIST EN 1568-4:2018
EN 1568-4:2018 (E) 7 Introduction As fire-fighting foams are chemical agents or chemical preparations, Commission Directive 2006/60/CE [1] and Regulations (EC) No 1272/2008 (CLP) [2] and No 1907/2006 (REACH) [3] apply and need to be taken into account. Fire are classified in EN 2 [4] 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 B 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 the European 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. 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 does not in normal usage present a significant toxic hazard to life in relation to the environment. Commission Directive 2006/60/CE [1] and Regulations (EC) No 1272/2008 (CLP) [2] and No 1907/2006 (REACH) [3] apply when considering the testing of ecotoxicological properties and safety in the work environment. Special quality characteristic is the type test conducted by an independent testing laboratory accredited to EN ISO/IEC 17025 [5]. SIST EN 1568-4:2018
EN 1568-4:2018 (E) 8 1 Scope This European Standard specifies requirements for chemical and physical properties, and minimum performance requirements of low expansion foams suitable for surface application to water-miscible liquids. Requirements are also specified for marking. IMPORTANT — The fire performance is tested using acetone and isopropanol as the fuel, which also forms the basis for the performance classification. However, there are a large number of water-miscible liquids which have more or less different properties to acetone and isopropanol. It has been shown by tests using other fuels that the performance of various foams can differ considerably. Examples of such fuel is Methyl Ethyl Ketone (MEK). It is therefore essential that the user checks for any unfavourable or unacceptable loss of efficiency when the foam is used against fires in any other water-miscible fuels than acetone and isopropanol respectively. The fire test conditions and procedure given in H.2 can be used in order to achieve results comparative with acetone and isopropanol respectively and related requirements. It is also essential for the user to note that other fuel depths and methods of application than those specified in H.2 can cause considerable loss of efficiency and these matters should be carefully considered by the user when assessing the suitability for particular applications. WARNING — Any type approval according to this standard is invalidated by any change in composition of the approved product. NOTE Some concentrates conforming to this part of the EN 1568 series can also conform to other parts and therefore can also be suitable for application as medium and/or high expansion foams. 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 ISO 3104, Petroleum products — Transparent and opaque liquids — Determination of kinematic viscosity and calculation of dynamic viscosity (ISO 3104) EN ISO 3219:1994, 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) EN ISO 11348-2, Water quality — Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) — Part 2: Method using liquid-dried bacteria (ISO 11348-2) EN ISO 23753-1, Soil Quality — Determination of dehydrogenase activity in soil — Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1) 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 OECD 201, Test No. 201: Freshwater Alga and Cyanobacteria, Growth Inhibition Test OECD 202, Test No. 202: Daphnia sp. Acute Immobilisation Test OECD 203, Test No. 203: Fish, Acute Toxicity Test SIST EN 1568-4:2018
EN 1568-4:2018 (E) 9 OECD 301, Test No. 301: Ready Biodegradability OECD 404, Test No. 404: Acute Dermal Irritation/Corrosion OECD 405, Test No. 405: Acute Eye Irritation/Corrosion OECD 420, Test No. 420: Acute Oral Toxicity – Fixed Dose Procedure 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 25 %/50 % drainage time time taken for 25 %/50 % of the volume of the original foam solution to drain out of the generated foam 3.2 Expansion (E) expansion value expansion ratio ratio of the volume of foam to the volume of the foam solution from which it was made 3.3 low expansion foam foam which has an expansion ratio less than 20 3.4 medium expansion foam foam which has an expansion ratio greater than or equal to 20 but less than 200 3.5 high expansion foam foam which has an expansion ratio greater than or equal to 200 3.6 fire-fighting foam aggregate of air-filled bubbles formed from a foam solution used for fire fighting 3.7 foam concentrate liquid which is diluted with water to produce foam solution Note 1 to entry: Annex A gives information on grades of foam concentrate. 3.8 foam solution solution of foam concentrate in water SIST EN 1568-4:2018
EN 1568-4:2018 (E) 10 3.9 gentle application application (of foam from the test nozzle) indirectly to the surface of the fuel from a backboard Note 1 to entry: This definition of gentle application relates to the fire test procedures used in EN 1568-3 and EN 1568-4. 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 sediment insoluble particles in the foam concentrate 3.11 Newtonian foam concentrates foam concentrates which have a viscosity which is independent of the shear rate 3.12 pseudo-plastic foam concentrates foam concentrates which have a viscosity which decreases with increasing shear rate 3.13 surface tension tension within the interface between a liquid and air 3.14 freezing point temperature at which the first ingredient of a mixture starts to solidify or freeze out 3.15 designation identifying name name that corresponds to a chemical formulation and a specific production process Note 1 to entry: The designation guarantees consistency of the characteristics, performance and conditions of use of the foam concentrate. 3.16 demineralized water water conforming to EN ISO 3696 (Grade 3), the water having a surface tension greater than 70 mN m «1 when tested in accordance with F.2 and a conductivity of < 5
cm «1 4 Sediment in the foam concentrate 4.1 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 not more than 0,25 % when tested in accordance with Annex C. 4.2 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 e not more than 1,0 % when tested in accordance with Annex C. SIST EN 1568-4:2018
EN 1568-4:2018 (E) 11 5 Freezing point The freezing point of the foam concentrate sampled in accordance with Annex B shall be determined in accordance with Annex K. 6 Viscosity of the foam concentrate 6.1 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 14, item j). 6.2 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 14, item k). 7 pH of the foam concentrate The pH of the foam concentrate sampled in accordance with Annex B shall be not less than 6,0 and not more than 9,5 at (20 ± 1) °C. 8 Surface tension of the foam solution The surface tension (determined in accordance with F.2) of the foam solutions prepared using top and bottom half-samples (see E.4) of the foam concentrate sampled in accordance with Annex B and conditioned in accordance with Annex E shall be not less than 0,95 times and not more than 1,05 ti
...
SLOVENSKI STANDARD
oSIST prEN 1568-4:2016
01-oktober-2016
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Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion
foam concentrates for surface application to water-miscible liquids
Feuerlöschmittel - Schaummittel - Teil 4: Anforderungen an Schaummittel zur Erzeugung
von Schwerschaum zum Aufgeben auf polare (mit Wasser mischbare) Flüssigkeiten
Ta slovenski standard je istoveten z: prEN 1568-4
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 1568-4:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1568-4:2016
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oSIST prEN 1568-4:2016
DRAFT
EUROPEAN STANDARD
prEN 1568-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2016
ICS 13.220.10 Will supersede EN 1568-4:2008
English Version
Fire extinguishing media - Foam concentrates - Part 4:
Specification for low expansion foam concentrates for
surface application to water-miscible liquids
Feuerlöschmittel - Schaummittel - Teil 4:
Anforderungen an Schaummittel zur Erzeugung von
Schwerschaum zum Aufgeben auf polare (mit Wasser
mischbare) Flüssigkeiten
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 191.
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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1568-4:2016 E
worldwide for CEN national Members.
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Contents Page
European foreword .5
Introduction .6
1 Scope .7
2 Normative references .7
3 Terms and definitions .8
4 Sediment in the foam concentrate . 10
4.1 Sediment before ageing . 10
4.2 Sediment after ageing . 10
5 Freezing point . 10
6 Viscosity of the foam concentrate . 10
6.1 Newtonian foam concentrates . 10
6.2 Pseudo-plastic foam concentrates . 10
7 pH of the foam concentrate. 10
8 Surface tension of the foam solution . 10
9 Evaluation of aqueous film formation . 11
10 Expansion and drainage of foam . 11
10.1 Before temperature conditioning . 11
10.2 After temperature conditioning . 11
11 Test fire performance . 11
12 Stability/Separation test . 12
13 Occupation health and ecotoxicological evaluation . 12
14 Technical data sheet. 12
15 Container marking . 12
Annex A (informative) Grades of foam concentrate . 14
Annex B (normative) Preliminary sampling of foam concentrates . 15
Annex C (normative) Determination of percentage sediment . 16
C.1 Sampling . 16
C.2 Apparatus . 16
C.3 Procedure . 16
Annex D (normative) Determination of Viscosity for pseudo-plastic foam
concentrates . 17
D.1 Pseudo-plastic foam concentrates . 17
D.2 Viscosity determination . 17
D.2.1 Apparatus . 17
D.2.2 Test temperatures . 17
D.2.3 Viscosity measurement . 17
D.2.4 Results . 18
Annex E (normative) Temperature conditioning of foam concentrates . 19
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E.1 General . 19
E.2 Low temperature conditioning . 19
E.2.1 Apparatus . 19
E.2.2 Procedure . 19
E.3 High temperature conditioning . 19
E.3.1 Apparatus . 19
E.3.2 Procedure . 19
E.4 Division into top and bottom half-samples . 20
E.4.1 Apparatus . 20
E.4.2 Procedure . 21
Annex F (normative) Determination of surface tension . 22
F.1 Materials . 22
F.2 Procedure — Surface tension . 22
Annex G (normative) Determination of expansion and drainage time . 23
G.1 Apparatus . 23
G.2 Temperature conditions . 23
G.3 Procedure . 23
G.4 Simulated fresh and sea water . 24
Annex H (normative) Determination of test fire performance . 28
H.1 General . 28
H.2 General conditions . 28
H.2.1 Test series and criteria for success . 28
H.2.2 Temperature and wind speed . 28
H.2.3 Records . 29
H.2.4 Foam solution . 29
H.2.5 Fuel . 29
H.3 Fire test . 29
H.3.1 Apparatus . 29
H.3.2 Test procedure . 30
Annex I (informative) Small scale fire test . 32
I.1 Apparatus . 32
I.2 Test procedure . 33
I.2.1 Test conditions . 33
I.2.2 Set up . 33
I.2.3 Fire test . 33
Annex J (informative) Description of a radiation measurement method . 42
J.1 Evaluation . 42
J.2 General arrangement of test . 42
J.3 Technical data for radiometers . 43
J.4 Procedure . 44
Annex K (normative) Freezing Point Determination . 46
K.1 General . 46
K.2 Equipment required . 46
K.3 Procedure . 46
K.4 Example for evaluation . 47
Annex L (normative) Evaluation of film formation . 48
L.1 Sampling . 48
L.2 Apparatus . 48
L.3 Materials . 48
L.4 Procedure . 48
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Annex M (normative) Stability/Separation test of foam concentrate . 49
M.1 General . 49
M.2 Apparatus . 49
M.3 Procedure . 49
Annex N (normative) Occupational health and ecotoxicological testing . 50
Annex O (informative) Technical data sheet . 51
Annex P (informative) A-Deviations . 54
Bibliography . 56
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European foreword
This document (prEN 1568-4:2016) has been prepared by Technical Committee CEN/TC 191
“Fixed firefighting systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1568-4:2008.
This document is Part 4 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 3: Specification for low expansion foam concentrates for surface application to water-
immiscible liquids.
This European Standard is one of a series of standards specifying requirements for fire
extinguishing media in common use. This series includes the following standards:
— EN ISO 5923, Equipment for fire protection and fire fighting — Fire extinguishing media —
Carbon dioxide (ISO 5923);
— 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 — Specifications for powders (other than
class D powders).
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Introduction
As fire fighting foams are chemical agents or chemical preparations Commission
Directive 2006/60/CE and Regulations (EC) No 1272/2008 and No 1907/2006 (REACH) apply
and should be taken into account.
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 B 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 version of Commission Directive 2006/60/CE,
Regulations (EC) No 1272/2008 and No 1907/2006 apply when considering the testing of
ecotoxicological properties and safety in the work environment.
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1 Scope
This draft European Standard specifies requirements for chemical and physical properties, and
minimum performance requirements of low expansion foams suitable for surface application to
water-miscible liquids. Requirements are also given for marking.
IMPORTANT — In this part of the document, the fire performance is tested using acetone
and isopropanol as the fuel, which also forms the basis for the performance classification.
However, there are a large number of water-miscible liquids, which have more or less
different properties to acetone and isopropanol. It has been shown by tests using other
fuels that the performance of various foams can differ considerably. Examples of such
fuel is Methyl Ethyl Ketone (MEK). It is therefore essential that the user checks for any
unfavourable or unacceptable loss of efficiency when the foam is used against fires in any
other water-miscible fuels than acetone and isopropanol respectively. The fire test
conditions and procedure given in J.2 can be used in order to achieve results comparative
with acetone and isopropanol respectively and related requirements.
It is also essential for the user to note that other fuel depths and methods of application than
those specified in I.2 can cause considerable loss of efficiency and these matters should be
carefully considered by the user when assessing the suitability for particular applications.
Type approval needs to be executed by independent third party laboratories.
WARNING: Any type approval according to this standard is invalidated by any change in
composition of the approved product.
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.
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 1568–1, Fire extinguishing media —Foam concentrates — Part 1: Specification for medium
expansion foam concentrates for surface application to water-immiscible liquids
EN 1568–2, Fire extinguishing media — Foam concentrates — Part 2: Specification for high
expansion foam concentrates for surface application to water-immiscible liquids
EN 1568–3, Fire extinguishing media — Foam concentrates — Part 3: Specification for low
expansion foam concentrates for surface application to water-immiscible liquids
EN ISO 3104, Petroleum products — Transparent and opaque liquids — Determination of
kinematic viscosity and calculation of dynamic viscosity (ISO 3104)
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)
EN ISO 5764, Milk — Determination of freezing point — Thermistor cryoscope method (Reference
method) (ISO 5764)
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EN ISO 11348-2, Water quality — Determination of the inhibitory effect of water samples on the
light emission of Vibrio fischeri (Luminescent bacteria test) — Part 2: Method using liquid-dried
bacteria (ISO 11348-2)
EN ISO 23753-1, Soil Quality — Determination of dehydrogenase activity in soil — Part 1: Method
using triphenyltetrazolium chloride (TTC) (ISO 23753-1)
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
OECD 201, Test No. 201: Freshwater Alga and Cyanobacteria, Growth Inhibition Test
OECD 202, Test No. 202: Daphnia sp. Acute Immobilisation Test
OECD 203, Test No. 203: Fish, Acute Toxicity Test
OECD 301, Test No. 301: Ready Biodegradability
OECD 404, Test No. 404: Acute Dermal Irritation/Corrosion
OECD 405, Test No. 405: Acute Eye Irritation/Corrosion
OECD 420, Test No. 420: Acute Oral Toxicity - Fixed Dose Procedure
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
25 %/50 % drainage time
time taken for 25 %/50 % of the volume of the original foam solution to drain out of the
generated foam
3.2
expansion
expansion value
expansion ratio
ratio of the volume of foam to the volume of the foam solution from which it was made
3.3
low expansion foam
foam which has an expansion ratio less than 20
3.4
medium expansion foam
foam which has an expansion ratio greater than or equal to 20 but less than 200 even after
temperature conditioning
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3.5
high expansion foam
foam which has an expansion ratio greater than or equal to 200 even after temperature
conditioning
3.6
fire-fighting foam
aggregate of air filled bubbles formed from a foam solution used for fire fighting
3.7
foam concentrate
liquid which is diluted with water to produce foam solution
Note 1 to entry: Annex A gives information on grades of foam concentrate.
3.8
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 1 to entry: This definition of gentle application relates to the fire test procedures used in
EN 1568–3 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
sediment
insoluble particles in the foam concentrate
3.11
Newtonian foam concentrates
foam concentrates which have a viscosity which is independent of the shear rate
3.12
pseudo-plastic foam concentrates
foam concentrates which have a viscosity which decreases with increasing shear rate
3.13
surface tension
tension within the interface between a liquid and air
3.14
interfacial tension
tension within the interface between two immiscible liquids
3.15
freeze point
temperature at which the first ingredient of a mixture starts to solidify or freeze out
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3.16
designation
identifying name
name that corresponds to a chemical formulation and a specific production process
Note 1 to entry: It guarantees consistency of the characteristics, performance and conditions of use of
the foam concentrate.
4 Sediment in the foam concentrate
4.1 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 μm sieve, and the percentage volume of
sediment shall be not more than 0,25 % when tested in accordance with Annex C.
4.2 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 μm sieve and the percentage volume of
sediment shall be not more than 1,0 % when tested in accordance with Annex C.
5 Freezing point
The freezing point of the foam concentrate sampled in accordance with Annex B shall be
determined in accordance with Annex K.
6 Viscosity of the foam concentrate
6.1 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
2 –1
is > 200 mm s , container shall be marked in accordance with Clause 15 l).
6.2 Pseudo-plastic foam concentrates
The viscosity of the foam concentrate shall be determined in accordance with Annex D. If the
−1
viscosity at the lowest temperature for use is greater than or equal to 120 mPa.s at 375 s ,
container shall be marked in accordance with Clause 15 m).
7 pH of the foam concentrate
The pH of the foam concentrate sampled in accordance with Annex B shall be not less than 6,0
and not more than 9,5 at (20 ± 1) °C.
8 Surface tension of the foam solution
The surface tension (determined in accordance with F.2) of the foam solutions prepared using
top and bottom half-samples (see E.4) of the foam concentrate sampled in accordance with
Annex B and conditioned in accordance with Annex E shall be not less than 0,95 times and not
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