1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Fire extinguishing media - Foam concentratesPart 4: Specification for low expansion foam concentrates for surface application to water-miscible liquidsBS EN 1568-4:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM E
2、N 1568-4 February 2018 ICS 13.220.10 Supersedes EN 1568-4:2008English Version Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids Agents extincteurs - mulseurs - Partie 4 : Spcifications pour les m
3、ulseurs bas foisonnement destins une application la surface de liquides ayant une affinit pour leau Feuerlschmittel - Schaummittel - Teil 4: Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf mit Wasser mischbare Flssigkeiten This European Standard was approved by CEN on 1
4、8 September 2017. 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 ma
5、y be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified
6、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
7、, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC
8、Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1568-4:2018 ENational forewordThis British Standard is the UK implementation of EN 1568-4:2018. It supersedes BS EN 1568-
9、4:2008 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee FSH/18/7, Foam/Media Systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisi
10、ons of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 86816 0ICS 13.220.10Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published
11、 under the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1568-4:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1568-4 February 2018 ICS 13.220.10 Supersedes EN 1568-4:2008Engli
12、sh Version Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids Agents extincteurs - mulseurs - Partie 4 : Spcifications pour les mulseurs bas foisonnement destins une application la surface de liqu
13、ides ayant une affinit pour leau Feuerlschmittel - Schaummittel - Teil 4: Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf mit Wasser mischbare Flssigkeiten This European Standard was approved by CEN on 18 September 2017. CEN members are bound to comply with the CEN/CENE
14、LEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre o
15、r to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the off
16、icial 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
17、, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN A
18、ll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1568-4:2018 EBS EN 1568-4:2018EN 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
19、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 Stab
20、ility/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 (i
21、nformative) 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
22、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 BS EN 1568-4:2018EN 1568-4:2018 (E) 3 E.2 Low
23、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 o
24、f 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 Ge
25、neral . 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 Apparat
26、us 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) Freez
27、ing 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 h
28、ealth and ecotoxicological testing 50 BS EN 1568-4:2018EN 1568-4:2018 (E) 4 Annex N (informative) Example of a technical data sheet 51 Annex O (informative) A-Deviations 53 Bibliography . 55 BS EN 1568-4:2018EN 1568-4:2018 (E) 5 European foreword This document (EN 1568-4:2018) has been prepared by T
29、echnical 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
30、 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 compa
31、rison 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 ecotoxicologica
32、l 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 med
33、ia 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 e
34、xpansion 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
35、 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: Co
36、de of practice for safe handling and transfer procedures (ISO 7201-2:1991); BS EN 1568-4:2018EN 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 organi
37、zations 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, M
38、alta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1568-4:2018EN 1568-4:2018 (E) 7 Introduction As fire-fighting foams are chemical agents or chemical preparations, Commission Directive 2006/60/CE 1 and R
39、egulations (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; Cl
40、ass 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
41、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
42、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 pe
43、rformances 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
44、 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
45、/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
46、17025 5. BS EN 1568-4:2018EN 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 marki
47、ng. 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 show
48、n 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 wate
49、r-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 suita
