CEN TR 15642-2011 Unified tests procedures for the tests of EN 3-7 2004+A1 2007《统一测试程序测试的EN 3-7 2004 + A1 2007》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationPD CEN/TR 15642:2011Unified tests procedures for thetests of EN 3-7:2004+A1:2007PD CEN/TR 15642:2011 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implemen

2、tation of CEN/TR 15642:2011. It supersedes PD CEN/TR 15642:2008 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FSH/2, Fire extinguishers.A list of organizations represented on this committee can beobtained on request to its secretary.This publication do

3、es not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 72224 0ICS 13.220.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority

4、of theStandards Policy and Strategy Committee on 31 March 2011.Amendments issued since publicationDate Text affectedPD CEN/TR 15642:2011TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 15642 March 2011 ICS 13.220.10 Supersedes CEN/TR 15642:2008English Version Unified tests procedures fo

5、r the tests of EN 3-7:2004+A1:2007 Procdures dessais unifies pour les essais de lEN 3-7:2004+A1:2007 Vereinheitlichte Prverfahren fr die Prfungen nach EN 3-7:2004+A1:2007 This Technical Report was approved by CEN on 17 January 2011. It has been drawn up by the Technical Committee CEN/TC 70. CEN memb

6、ers are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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,

7、 Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Memb

8、ers. Ref. No. CEN/TR 15642:2011: EPD CEN/TR 15642:2011CEN/TR 15642:2011 (E) 2 Contents Page Foreword 51 Scope 62 Normative references 6Annex A Duration of operation and residual charge 7A.1 General 7A.2 Scope 7A.3 References 7A.4 Equipment 7A.5 Tests conditions Number of tests samples . 7A.6 Test me

9、thod 7A.6.1 General 7A.6.2 Duration of operation 8A.6.3 Residual charge . 10A.7 Requirements Acceptance criteria . 11A.7.1 Minimum duration 11A.7.2 Spread of measurements 13A.7.3 Commencement of discharge 14A.7.4 Residual charge . 14Annex B Effective range of operating temperature test . 15B.1 Gener

10、al 15B.2 Scope 15B.3 References 15B.4 Equipment 15B.5 Test conditions number of test samples 15B.6 Test method 16B.6.1 General 16B.6.2 Duration of operation 17B.6.3 Residual charge . 19B.7 Requirements acceptance criteria 19Annex C Operation and emission control mechanism /devices and safety devices

11、 tests . 20C.1 General 20C.2 Scope 20C.3 References 20C.4 Equipment 20C.5 Number of test samples Test conditions . 21C.5.1 Number of test samples 21C.5.2 Test conditions-Pre-conditioning of test samples . 22C.6 Test method 22C.6.1 Principle 22C.6.2 Application of the force for the test . 22C.6.3 Dev

12、ices activated by force (N) 22C.6.4 Devices activated by energy (joule). 23C.7 Requirements Acceptance criteria . 24C.7.1 Operation and emission control mechanism/device . 24C.7.2 Safety devices 24Annex D Control valve . 26D.1 General 26D.2 Scope 26D.3 References 26D.4 Equipment 26PD CEN/TR 15642:20

13、11CEN/TR 15642:2011 (E) 3 D.5 Tests conditions Number of tests samples 26D.6 Test method . 26D.6.1 General . 26D.6.2 1 kg and 2 kg powder stored pressure extinguishers 27D.6.3 1 kg and 2 kg powder cartridge operated extinguishers 27D.6.4 All stored pressure extinguishers excluding 1 and 2 kg powder

14、and CO2 extinguishers . 27D.6.5 All cartridge operated extinguishers excluding 1 and 2 kg powder 28D.6.6 CO2 extinguishers . 28D.7 Requirements Acceptance criteria . 29D.7.1 For 1 kg and 2 kg powder extinguishers P3 shall not be less than 80 % of P2 29D.7.2 For all extinguishers excluding 1 kg and 2

15、 kg powder and CO2extinguishers P3 shall not be less than 80 % of P2 or P3 shall not be less than 50 % of P1. . 29D.7.3 For CO2extinguishers M3 shall not be less than 80 % of M2 . 29Annex E Hose and coupling systems tests 30E.1 General . 30E.2 Scope . 30E.3 References . 30E.4 Equipements . 30E.5 Tes

16、t conditions Number of test samples 30E.6 Test method . 31E.6.1 Test at (20 5)C . 31E.6.2 Test at (Tmax 2)C and at (Tmin 2)C 31E.7 Requirement Acceptance criteria . 31Annex F Resistance to extinguishing medium of extinguishers using water based media . 32F.1 General . 32F.2 Scope . 32F.3 References

17、. 32F.4 Equipment . 32F.5 Test conditions Number of tests samples 32F.6 Test method . 33F.7 Requirements Acceptance criteria . 33Annex G Classes A and B fire tests . 34G.1 General . 34G.2 Scope . 34G.3 References . 34G.4 Equipment . 34G.5 Test conditions Number of test samples 35G.5.1 General Tests

18、Conditions 35G.5.2 Class A fire test . 35G.5.3 Class B fire tests . 39G.6 Test method . 42G.6.1 Test procedure for Class A fire tests 42G.6.2 Test procedure for Class B fire tests 42G.6.3 General acceptance criteria . 42Annex H Compaction procedure 43H.1 General . 43H.2 Scope . 43a) The powder extin

19、guishers for testing, before the 24 h storage period at (20 5)C prior to the following tests: . 43b) The water based extinguishers for testing, before the 24 h storage period at (20 5) C prior to: 43H.3 References . 43H.4 Equipment . 43H.5 Tests conditions Number of tests samples 44H.6 Test method .

20、 44H.7 Requirements Acceptance criteria . 44Annex I Class F fire tests 45I.1 General . 45PD CEN/TR 15642:2011CEN/TR 15642:2011 (E) 4 I.2 Scope 45I.3 References 45I.4 Equipment 45I.5 Test conditions-Number of test samples 45I.6 Test method 46I.7 Requirement-acceptance criteria . 47PD CEN/TR 15642:201

21、1CEN/TR 15642:2011 (E) 5 Foreword This document (CEN/TR 15642:2011) has been prepared by Technical Committee CEN/TC 70 “Manual means of fire fighting equipment”, the secretariat of which is held by AFNOR. Attention is drawn to the possibility that some of the elements of this document may be the sub

22、ject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN/TR 15642: 2008. This document is divided in Annexes, corresponding to the following tests in EN 3-7:2004+A1:2007. Annex A: Duration of operation and res

23、idual charge Annex B: Effective range of operating temperature test Annex C: Operation and emission control mechanism / devices and safety devices tests Annex D: Control valve Annex E: Hose and coupling systems tests Annex F: Resistance to extinguishing medium of extinguishers using water based medi

24、a Annex G: Classes A and B fire tests Annex H: Compaction procedure Annex I: Class F fire tests PD CEN/TR 15642:2011CEN/TR 15642:2011 (E) 6 1 Scope This Technical Report specifies the tests procedures for some of the tests required by EN 3-7:2004+A1:2007; it does not cover all the EN 3-7:2004+A1:200

25、7 tests but only the tests requiring more precision in their execution. These Unified Tests Procedures are in force for all laboratories performing EN 3-7:2004+A1:2007 tests. Those laboratories should be accredited to EN ISO/IEC 17025 for EN 3-7:2004+A1:2007 tests and their accreditation shall be do

26、ne by an Accreditation Body, member of the European Accreditation. This document should be included in the list of applicable documents. NOTE Since results of many tests may be affected by the human factor, this document should be taken as a helpful tool but will not replace experience and knowledge

27、 of people.” 2 Normative references The following referenced documents are indispensable for the application 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 3-7:2004+A

28、1:2007 Portable fire extinguishers Part 7: Characteristics, performance requirements and test methods EN ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2005) ISO 657-1, Hot-rolled steel sections Part 1: Equal-leg angles-Dimensions ISO 447

29、0, Sawn timber Determination of the average moisture content of a lot PD CEN/TR 15642:2011CEN/TR 15642:2011 (E) 7 Annex A Duration of operation and residual charge A.1 General This procedure describes the method to measure the duration of operation and the residual charge of an extinguisher after di

30、scharge. A.2 Scope This procedure applies to all types of portable extinguishers. A.3 References EN 3-7:2004+A1: 2007, 3.13, 5, 7.1, 7.2, 7.3, Annex A and Annex K. A.4 Equipment Stopwatch with at least 3 splits. Scale. The measurement equipment shall fulfil the applicable requirements of EN ISO/IEC

31、17025 regarding calibration. A.5 Tests conditions Number of tests samples Number of test samples : Three Powder and water based extinguishers samples shall be submitted to the compaction procedure prior to the storage period. Extinguishers with gaseous extinguishing media are not subjected to this c

32、ompaction. Extinguishers for testing shall prior to the test be stored for at least 24 h at (20 5)C. Test shall be carried out within 5 min of its removal from storage. A.6 Test method A.6.1 General Record the actual gross weight of all the extinguishers used in the test. PD CEN/TR 15642:2011CEN/TR

33、15642:2011 (E) 8 A.6.2 Duration of operation A.6.2.1 General Two technicians are needed to carry out this test: one operates the extinguisher; the other one measures times by stopwatch. A.6.2.2 Stored pressure extinguishers (all types of media) Release the safety device. Hold the extinguisher by han

34、d in its normal working position (see label instructions) and keep it immobile for the duration of the test. If there is a hose, hold the nozzle in the other hand in a horizontal position. Fully open the control valve and start the stopwatch (t0). Record by split (t1) on the stopwatch the delay of t

35、he beginning of discharge. Record by split (t2) on the stopwatch the end of discharge of the extinguishing medium: For CO2 extinguisher: The end of discharge can be noticed by a clear visible (from a white to a more transparent colour) and audible (from a deep to a higher hissing sound) modification

36、 of the gas jet. Another type of extinguisher : The end of discharge can be noticed at the moment when all the extinguishing agent is discharged. The residual propellant gas is not taken into account. Keep the control valve fully open during 1 min after t2. Calculate and record the duration of disch

37、arge (t2-t1) for each of the three extinguishers. The diagram to perform the test is as follow (see Figure A.1): Calculate and record the average and the spread of each measurement of the duration of discharge. remove safety device; PD CEN/TR 15642:2011CEN/TR 15642:2011 (E) 9 start stopwatch) (t0) a

38、nd open the control valve, Key 1 discharge delay max 4 s 2 duration of operation 3 1 min release of remaining gas then close the valve 4 discharge finishing Figure A.1 A.6.2.3 Gas cartridge type extinguisher Release the safety device. If the pressurisation is not achieved by the releasing of the saf

39、ety device, pressurise the extinguisher according to the instructions of the label. Start the stopwatch when the cartridge is opened (ta). Hold the extinguisher by hand in its normal working position (see label instructions) and keep it immobile for the duration of the test. If there is a hose, hold

40、 the nozzle in the other hand in a horizontal position. Only for extinguisher using a pressurisation device independent of the control valve, after (6 1)s (t0). (SPLIT on the stopwatch) open the control valve. Record by split (t1) on the stopwatch the delay of the beginning of discharge. Record by s

41、plit (t2) on the stopwatch the end of discharge of the extinguishing medium. The end of discharge can be noticed by the moment when all the extinguishing agent is discharged. The residual propellant gas is not taken into account. Keep the control valve fully open during 1 min after t2. Calculate and

42、 record the duration of discharge (t2 - t1) for each of the three extinguishers. Calculate and record the average and the spread of each measurement of the duration of discharge. Diagram to perform the test is as follow: for extinguishers pressurised by a device independent of the control valve (see

43、 Figure A.2): remove safety device; pressurise the extinguisher (if not obtained by removing the safety device) and start the stopwatch (ta), after (6 1) s , split on the stopwatch (t0) and open the control valve, PD CEN/TR 15642:2011CEN/TR 15642:2011 (E) 10 Key 1 pressurisation for 6 s 2 discharge

44、delay max 4 s 3 duration of operation 4 1 min release of remaining gas then close the valve 5 discharge finishing Figure A.2 for extinguishers pressurised by activation of the control valve see Figure A.3: remove safety device; open the control valve (pressurisation) and start the stopwatch (t0). Ke

45、y 1 discharge delay max 4 s 2 duration of operation 3 1 min release of remaining gas then close the valve 4 discharge finishing Figure A.3 A.6.3 Residual charge A.6.3.1 Powder and water based extinguisher Check there is no pressure left in the extinguisher. Remove the closure of the extinguisher. Re

46、cord the weight of the residual charge by one of the following method: PD CEN/TR 15642:2011CEN/TR 15642:2011 (E) 11 - Collect the residual charge of media from the extinguisher and its dip tube, valve and hose (if applicable). - Measure the weight of the extinguisher containing residual charge (incl

47、uding medium from dip tube and valve and hose if applicable). Then, empty and reweigh the body. Calculate and record the percentage related to the nominal charge. Check that the original charge of tested extinguishers fulfilled the filling tolerances required in EN 3-7:2004+A1:2007, 6.2. (Take into

48、account the weight of the propellant gas). A.6.3.2 Gaseous media extinguisher Dry externally the extinguisher and record the weight. Reweigh the extinguisher after it is completely empty. Calculate the residual charge related to the nominal charge. Check that the original charge of tested extinguishers fulfi