EN 1568-1:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fire extinguishing media - Foam concentrates - Part 1: Specification for medium expansion foam concentrates for surface application to water-immiscible liquidsAgents extincteurs - Emulseurs - Partie 1: Spécifications pour les émulseurs moyen foisonnement destinés a une application a la surface de liquides n'ayant pas d'affinité pour l'eauFeuerlöschmittel - Schaummittel - Teil 1: Anforderungen an Schaummittel zur Erzeugung von Mittelschaum zum Aufgeben auf nicht-polare Flüssigkeiten13.220.10Gašenje požaraFire-fightingICS:SIST EN 1568-1:2008en,fr,deTa slovenski standard je istoveten z:EN 1568-1:200801-julij-2008SIST EN 1568-1:2008SLOVENSKI
STANDARDSIST EN 1568-1:20011DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1568-1March 2008ICS 13.220.10Supersedes EN 1568-1:2000
English VersionFire extinguishing media - Foam concentrates - Part 1:Specification for medium expansion foam concentrates forsurface application to water-immiscible liquidsAgents extincteurs - Emulseurs - Partie 1: Spécificationspour les émulseurs moyen foisonnement destinés à uneapplication à la surface de liquides n'ayant pas d'affinitépour l'eauFeuerlöschmittel - Schaummittel - Teil 1: Anforderungen anSchaummittel zur Erzeugung von Mittelschaum zumAufgeben auf nicht-polare (mit Wasser nicht mischbare)FlüssigkeitenThis 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1568-1:2008: E

Grades of foam concentrate.10 Annex B (normative)
Preliminary sampling of foam concentrates.11 Annex C (normative)
Determination of percentage sediment.12 Annex D (normative)
Determination of viscosity for pseudo-plastic foam concentrates.13 Annex E (normative)
Temperature conditioning of foam concentrates.15 Annex F (normative)
Determination of surface tension and spreading coefficient.18 Annex G (normative)
Determination of expansion and drainage time.19 Annex H (normative)
Determination of test fire performance.24 Annex I (informative)
Description of a radiation measurement method.28 Annex J (informative)
A-Deviations.32 Bibliography.34

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 1 of EN 1568 which has the general title "Fire extinguishing media - Foam concentrates". The other parts are:  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  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.

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

NOTE The spreading coefficient indicates the possibility of film forming, but it does not measure its quality. 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 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.

5.2 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 11 m).
6 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. 7 Surface tension of
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