1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Fire extinguishing media Foam concentratesPart 3: Specification for low expansion foam concentrates for surface application to water-immiscible liquidsBS EN 1568-3:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM E
2、N 1568-3 March 2018 ICS 13.220.10 Supersedes EN 1568-3:2008English Version Fire extinguishing media - Foam concentrates - Part 3: Specification for low expansion foam concentrates for surface application to water-immiscible liquids Agents extincteurs - mulseurs - Partie 3 : Spcifications pour les mu
3、lseurs bas foisonnement destins une application la surface de liquides nayant pas daffinit pour leau Feuerlschmittel - Schaummittel - Teil 3: Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf mit Wasser nicht mischbare Flssigkeiten This European Standard was approved by C
4、EN on 8 October 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 standard
5、s may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notif
6、ied 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, Ice
7、land, 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-CENE
8、LEC 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 1568-3:2018 ENational forewordThis British Standard is the UK implementation of EN 1568-3:2018. It supersedes BS EN 1
9、568-3:2008, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee FSH/18/7, Foam/Media Systems.A list of organizations represented on this committee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 pr
10、ovisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 86815 3ICS 13.220.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was publi
11、shed under the authority of the Standards Policy and Strategy Committee on 30 April 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1568-3:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1568-3 March 2018 ICS 13.220.10 Supersedes EN 1568-3:2008Engl
12、ish Version Fire extinguishing media - Foam concentrates - Part 3: Specification for low expansion foam concentrates for surface application to water-immiscible liquids Agents extincteurs - mulseurs - Partie 3 : Spcifications pour les mulseurs bas foisonnement destins une application la surface de l
13、iquides nayant pas daffinit pour leau Feuerlschmittel - Schaummittel - Teil 3: Anforderungen an Schaummittel zur Erzeugung von Schwerschaum zum Aufgeben auf mit Wasser nicht mischbare Flssigkeiten This European Standard was approved by CEN on 8 October 2017. CEN members are bound to comply with the
14、CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management
15、Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
16、 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, Net
17、herlands, 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 20
18、18 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1568-3:2018 EBS EN 1568-3:2018EN 1568-3:2018 (E) 2 Contents Page European foreword . 5 Introduction 7 1 Scope 8 2 Normative references 8 3 Terms and definitions . 9 4 Sediment in t
19、he foam concentrate . 10 4.1 Sediment before ageing . 10 4.2 Sediment after ageing . 11 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 . 1
20、1 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 . 12 11 Test fire performance . 12 12 Evaluation of aqueous film formation 13 13 Occupational health and ecotoxicolo
21、gical information . 13 14 Technical data sheet . 13 15 Container marking . 14 Annex A (informative) Grades of foam concentrate and performance 15 A.1 Grades. 15 A.2 Typical performance . 15 Annex B (normative) Sampling of foam concentrates . 17 Annex C (normative) Determination of percentage sedimen
22、t 18 C.1 Sampling 18 C.2 Apparatus 18 C.3 Procedure 18 Annex D (normative) Determination of Viscosity for pseudo-plastic foam concentrates 19 D.1 Pseudo-plastic foam concentrates . 19 D.2 Viscosity determination. 19 D.2.1 Apparatus 19 BS EN 1568-3:2018EN 1568-3:2018 (E) 3 D.2.2 Test temperatures 19
23、D.2.3 Viscosity measurement 19 D.2.4 Results 20 Annex E (normative) Temperature conditioning of foam concentrates 21 E.1 General . 21 E.2 Low temperature conditioning 21 E.2.1 Apparatus 21 E.2.2 Procedure 21 E.3 High temperature conditioning . 21 E.3.1 Apparatus 21 E.3.2 Procedure 21 E.4 Division in
24、to top and bottom half-samples . 22 E.4.1 Apparatus 22 E.4.1.1 Top half-sample container(s) . 22 E.4.1.2 Divider device 22 E.4.2 Procedure 23 Annex F (normative) Determination of surface tension 24 F.1 Solution of foam concentrate . 24 F.2 Procedure Surface tension . 24 Annex G (normative) Determina
25、tion of expansion and drainage time 25 G.1 Apparatus 25 G.2 Temperature conditions 25 G.3 Procedure 25 G.4 Simulated fresh and sea water . 26 Annex H (normative) Determination of test fire performance . 30 H.1 General . 30 H.2 General conditions . 30 H.2.1 Test series and criteria for success 30 H.2
26、.1.1 Foam concentrates not compatible with sea water 30 H.2.1.2 Foam concentrates compatible with sea water . 30 H.2.2 Temperature and wind speed 30 H.2.3 Records . 30 H.2.4 Foam solution. 31 H.2.5 Fuel 31 H.3 Gentle application fire test 32 H.3.1 Apparatus 32 BS EN 1568-3:2018EN 1568-3:2018 (E) 4 H
27、.3.2 Test procedure 32 H.4 Forceful application fire test 33 H.4.1 Apparatus 33 H.4.2 Procedure 33 Annex I (informative) Small scale fire test . 35 I.1 Apparatus 35 I.2 Test procedure 35 I.2.1 Test conditions 35 I.2.2 Set up 36 I.2.3 Fire test 36 Annex J (informative) Description of a radiation meas
28、urement method . 45 J.1 Evaluation . 45 J.2 General arrangement of test 45 J.3 Technical data for radiometers 46 J.4 Procedure 47 Annex K (normative) Freezing point determination 49 K.1 General . 49 K.2 Apparatus 49 K.3 Procedure 49 K.4 Example of a temperature against time curve for evaluation . 50
29、 Annex L (normative) Evaluation of film formation . 51 L.1 Sampling 51 L.2 Apparatus 51 L.3 Materials 51 L.4 Procedure 51 Annex M (normative) Stability/Separation test of foam concentrate 53 M.1 General . 53 M.2 Apparatus 53 M.3 Procedure 53 Annex N (normative) Occupational health and ecotoxicologic
30、al testing 54 Annex O (informative) Example for a technical data sheet 55 Annex P (informative) A-Deviations. 57 Bibliography . 59 BS EN 1568-3:2018EN 1568-3:2018 (E) 5 European foreword This document (EN 1568-3:2018) has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting systems”,
31、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 2018, and conflicting national standards shall be withdrawn at the latest by December 2019. Atten
32、tion 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 1568-3:2008. In comparison with the previous edition, the following significan
33、t changes have been made: Interfacial tension and spreading coefficient test removed; Freezing point test introduced; Stability/Separation test of foam concentrate introduced; Occupational health and ecotoxicological testing introduced; Example of technical data sheet included; New test procedures i
34、ntroduced for the Evaluation of film formation of the foam Concentrate. 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 3 of EN 1568 which has the general title Fire extinguishing media Foam
35、 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 expansio
36、n foam concentrates for surface application to water-miscible 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
37、 Fire extinguishing media Carbon dioxide); EN 27201-1, Fire protection Fire extinguishing media Halogenated hydrocarbons Part 1: Specifications for halon 1211 and halon 1301 (ISO 7201-1); BS EN 1568-3:2018EN 1568-3:2018 (E) 6 EN 27201-2, Fire protection Fire extinguishing media Halogenated hydrocarb
38、ons Part 2: Code of practice for safe handling and transfer procedures (ISO 7201-2); 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 organisations of the following coun
39、tries 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, Po
40、land, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1568-3:2018EN 1568-3:2018 (E) 7 Introduction As fire fighting foams are chemical agents or chemical preparations Commission Directive 2000/60/CE and Regulations (EC) No 1272/2008 (CL
41、P) 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
42、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 foam
43、s 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 European forewor
44、d). 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 standa
45、rd 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
46、 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
47、Directive 2000/60/CE, Regulations (EC) No 1272/2008 (CLP) and No 1907/2006 (REACH) apply when considering the testing of ecotoxicological properties and safety in the work environment. A special quality characteristic is the type test conducted by an independent testing laboratory accredited to EN I
48、SO/IEC 17025. BS EN 1568-3:2018EN 1568-3:2018 (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-immiscible liquids. Requirements are also given for ma
49、rking. WARNING Any type approval according to this standard is invalidated by any change in composition of the approved product. 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. 2 Normative references The following documents are referred to in the text in such a way that some or all of their cont
