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ČESKÁ TECHNICKÁ NORMA |
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ICS 13.220.10;75.180.01 |
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Srpen 1998 |
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Zařízení pro zkapalněný zemní plyn - |
ČSN 38 6623 |
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Installations and equipment for liquefied natural gas - Testing of foam concentrates designed for generation of medium and high expansion foam and of extinguishing powders used on liquefied natural gas fires
Installations et équipements relatifs au gaz naturel liquéfié - Essais d´émulseurs destinés á la production de mousse haut et moyen foisonnement et de poudres extinctrices utilisés sur feux de gaz naturel liquéfié
Anlagen und Ausrüstung für Flüssigerdgas - Eignungsprüfung von Schaummitteln für das Aufschäumen von Mittelschaum und Hochschaum sowie Löschpulvern zur Bekämpfung von Flüssigerdgasbränden (LNG-Bränden)
Tato norma přejímá anglickou verzi evropské normy EN 12065:1997. Evropská norma EN 12065:1997 má status české technické normy.
This standard implements the English version of the European Standard EN 12065:1997. The European Standard EN 12065:1997 has the status of a Czech Standard.
© Český normalizační institut, 1998
Podle zákona č. 22/1997 Sb. smějí být české technické normy rozmnožovány a rozšiřovány jen se souhlasem Českého normalizačního institutu.
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53059 |
Národní předmluva
Citované normy
EN 615 zavedena v ČSN EN 615 Požární ochrana - Hasiva - Technické podmínky pro prášky (kromě prášků pro třídu požáru D) (38 9030)
EN 1160 zavedena v ČSN EN 1160 Zařízení a příslušnství pro zkapalněný zemní plyn - Všeobecná charakteristika zkapalněného zemního plynu (38 6610)
prEN 1568-1 dosud nezavedena
prEN 1568-2 dosud nezavedena
prEN 1866 dosud nezavedena
Vypracování normy
Zpracovatel: GAS s.r.o., Praha, IČO 61506192, Miroslav Havel
Technická normalizační komise: TNK 55 Plynová zařízení
Pracovník Českého normalizačního institutu: Josef Toman
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EUROPEAN STANDARD |
EN 12065 |
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NORME EUROPÉENNE |
September 1997 |
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EUROPÄISCHE NORM |
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ICS 13.220.10;75.180.01
Descriptors: gas installation, liquefied natural gas, fire, fire protection, extinguishing agents, foam extinguishers, dry powder extinguishers, operating requirements, tests, test equipment, effectiveness, accountancy, acceptability
English version
Installations and equipment for liquefied natural gas - Testing of foam concentrates designed for generation of medium and high expansion foam and of extinguishing powders used on liquefied natural gas fires
Installations et équipements relatifs au gaz naturel liquéfié - Essais d'émulseurs destinés à la production de mousse haut et moyen foisonnement et de poudres extinctrices utilisés sur feux de gaz naturel liquéfié
Anlagen und Ausrüstung für Flüssigerdgas - Eignungsprüfung von Schaummitteln für das Aufschäumen von Mittelschaum und Hochschaum sowie Löschpulvern zur Bekämpfung von Flüssigerdgasbränden (LNG-Bränden)
This European Standard was approved by CEN on 22 September 1997.
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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Central Secretariat: rue de Strassart, 36 B-1050 Brussels
Ó 1997 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12065:1997 E
worldwide for CEN national Members.
Contents
Foreword 3
1 Scope 4
2 Normative references 4
3 Definitions 4
4 Description of equipment required for the foam concentrate tests 5
4.1 Components of the foam production unit 5
4.2 Special equipment required to determine the foam expansion ratio 6
4.3 Special equipment required to determine the efficiency of the foam in LNG fires 6
4.4 Other equipment required for the foam concentrate tests 7
5 Foam concentrate tests 7
5.1 Measurement of foam expansion ratio 7
5.2 Evalution of the efficiency of the foam on LNG fires 8
6 The foam concentrate test report 10
7 Evaluation of the efficiency of an extinguishing powder on a free LNG fire 11
8 Description of the equipment required to test the compatibility between foam and extinguishing powder 11
8.1 Components of the foam production unit 11
8.2 Equipment required for the application of extinguishing powder 12
8.3 Special equipment required for the test 12
8.4 Other equipment required for the test 12
9 The test for compatibility between foam and extinguishing powder 12
9.1 General requirements for performing the test 12
9.2 Test procedure 13
9.3 Criterion of acceptance of extinguishing powder 13
10 The test report for the efficency of the extinguishing powder on an LNG fire 13
10.1 Test report 13
10.2 Extinction test on a free fire 13
10.3 Test for compatibility between foam and extinguishing powder 14
Annex A (informative) General recommendations on the design of the foam generating equipment required for testing 16
Annex B (informative) Measuring equipment used to quantify foam production 21
Annex C (normative) Measuring equipment used to determine fire conditions 24
Annex D (normative) Method of calculating the parameters used to determine the efficiency of the foam concentrate 26
Annex E (normative) Special test rig required to test the compatibility between foam and extinguishing powder 30
Foreword
This European Standard has been prepared by the Technical Committee CEN/TC 282 „Installation and equipment for LNG" the secretariat of which is held by AFNOR.
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 March 1998, and conflicting national standards shall be withdrawn at the latest by March 1998.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies the tests to be carried out in order to assess the suitability of foam concentrates used to produce medium expansion foam (made from foam concentrates conforming to prEN 1568-1) or high expansion foam (made from foam concentrates conforming to prEN 1568-2) and fire extinguishing powder conforming to EN 615 when used alone or in combination on liquefied natural gas (LNG) fires.
This standard does not specify the general requirements for foam concentrates given in prEN 1568-1 and prEN 1568-2 or fire extinguishing powder given in EN 615.
This standard does not apply to foam concentrates used to produce low expansion foam (made from foam concentrates conforming to prEN 1568-3) which are not used on LNG installations.
-- Vynechaný text --
Zdroj: www.cni.cz