1、BRITISH STANDARD Respiratory protective devices - Methods of test - Part 4: Flame tests The European Standard EN 13274-4:2001 has the status of a British Standard ICs 13.220.4; 13.340.30 BS EN 13274-4200 1 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMlTED BY COPYRIGHT LAW BS EN 13274-42001 Nation
2、al foreword This British Standard is the official English language version of The UK participation in its preparation was entrusted by Technical Committee PH/4, Respiratory protection, to Subcommittee PH/4/9, Test methods and interpretation, which has the responsibility to: EN 13274-4:2001. - - aid
3、enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represent
4、ed on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Corresponden
5、ce Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of it
6、self confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Health and Environment Sector policy and Summary Of pages This document comprises a front cover, an inside front cover, the EN title page, Strategy Committee, was- published under the
7、authority of the Standards Policy and pages 2 to 12, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the Strategy Committee on 21 September 2001 document was last issued. Amendments issued since publication md. No. IDate I Comments 8 BSI 21 Sep
8、tember 2001 ISBN O 580 38102 1 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 132744 August 2001 ICs 13.220.40: 13.340.30 English version Respiratory protective devices - Methods of test - Part 4: Flame tests Appareils de protection respiratoire - Mthodes dessai - Partie 4: Essais la flamme At
9、emschutzgerte - Prfverfahren - Teil 4: Flammenprfungen This European Standard was approved by CEN on 17 June 2001 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any al
10、teration. Upto-date lists and bibliographical references concerning such national standards may be obtained on application to the 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 transl
11、ation under the responsibility of a CEN member into its own language and notified to the Management Centre 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, Ita
12、ly, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMTTTEE FOR STANDARDIZATION COMITI? EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in any f
13、orm and by any means reserved worldwide for CEN national Members. Ref. No. EN 13274-4:2001 E EN 13274-4:2001 (E) Contents Page Foreword 3 Introduction . 4 1 2 3 4 5 6 6.1 6.2 6.3 7 7.1 7.2 7.3 8 8.1 8.2 8.3 Scope 4 Normative references 4 Terms and definitions 4 Pre-requisites . 4 General test requir
14、ements 4 Six burner static test: Method I . 5 Principle 5 Test rig 5 Procedure . 5 Principle 5 Test rig 5 Procedure . 6 Principle 6 Test rig 6 Procedure . 6 Single burner static test: Method 2 5 Single burner moving specimen test: Method 3 . 6 Annex A (normative) Test results . Uncertainty of measur
15、ement 11 provisions of EU Directives 12 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other 2 EN 13274-4:2001 (E) Foreword This European Standard has been prepared by Technical Committee CENTTC 79 “Respiratory protective devices”, the secretariat of wh
16、ich is held by DIN. 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 February 2002, and conflicting national standards shall be withdrawn at the latest by February 2002. This European Standard has
17、been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard. EN 13274-4 is one of sev
18、eral parts, which are as follows: Part 1: Determination of inward leakage and total inward leakage Part 2: Practical performance tests Part 3: Determination of breathing resistance Part 4: Flame tests Part 5: Climatic conditions Part 6: Determination of carbon dioxide content of inhalation air Part
19、7: Determination of particle filter penetration Part 8: Determination of dolomite dust clogging Annex A is normative. According to the CENICENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cz
20、ech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 3 EN 13274-42001 (E) Introduction This European Standard is intended as a supplement to the specific device standards for re
21、spiratory protective devices. Test methods are specified for complete or parts of devices. If deviations from the test method given in this standard are necessary, these deviations will be specified in the relevant device standard. I Scope This European Standard specifies methods for flame tests to
22、be applied to respiratory protective devices. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated
23、 references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 132, Respiratory protecti
24、ve devices - Definitions of terms and pictograms. IS0 6941:19871AMD 1:1992, Textile fabrics - Burning behaviour - Measurement of flame spread properties of vertically oriented specimens. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 132 app
25、ly. 4 Pre-requisites In order to implement this European Standard, at least the following parameters need to be specified in the relevant device standard: Components to be tested; Test method, 1, 2, or 3; Number of specimens; Climatic conditioning; Mounting and orientation of specimens; Any deviatio
26、ns from the test procedure chosen; Passlfail criteria General test requirements Unless otherwise specified, the values stated in this European Standard are expressed as nominal values. Except for temperature limits, values which are not stated as maxima or minima shall be subject to a limit deviatio
27、n of 5 5%. 4 EN 13274-42001 (E) Unless otherwise specified, the ambient temperature for testing shall be between 16 “C and 32 “C and the temperature limits shall be subject to a limit deviation of 2 1 “C. 6 Six burner static test: Method 1 6.1 Principle The specimen is exposed to a flame from an arr
28、ay of six burners for (5 f 0,5) s at (950 f 50) OC. 6.2 Test rig The test rig consists mainly of a propane cylinder with flow control device, flow meter, pressure gauge, flash back arrester and six propane burners which are adjustable in height. Figure 1 shows a schematic diagram of the apparatus an
29、d the top view of the arrangements of the six burners. The purity of the propane shall be a minimum of 95%. NOTE Secretariat of CENKC79. A “TEKLU burner has been found to be suitable, and information on a source of supply can be obtained from the 6.3 Procedure Mount the specimen such that the extern
30、al parts have direct exposure to the flame. Before lighting the burners, position the specimen centrally above the array of six burners and individually adjust the height of each burner such that the distance between the burner tip and specimen is 250 mm. Figure 2 shows the adjustment of the burner
31、tips for one example of specimen. With the specimen removed from above the burners, fully open the propane control valve on each of the six burners. Initially close the air control valve on each of the six burners. Ignite the burners and adjust the propane cylinder output regulator to a pressure, su
32、ch that a flow meter in the main propane supply line indicates a total flow to all six burners of (21 +_ 0,5) litreclmin, propane. NOTE A iypical pressure range has been found to be 0,3 to 1,25 bar Adjust the flame temperature at a height of 250 mm above the burner tips in the centre of the flame, a
33、bove one burner, to a temperature of (950 f 50) OC, using a mineral insulated thermocouple probe of 1.5 mm diameter (see Figure 1). The flame temperature at a height of 250 mm above all burners shall be within the limits specified. In order to achieve the correct temperature it may be necessary to a
34、djust the air control valve on each burner to an optimum and to shield the whole test rig from the effect of external air flows. Expose the specimen to the flames for (5 f 0,5) s. Where components of the specimen are positioned such that they are not exposed directly to the flame, the test shall be
35、repeated with the same, or with other samples, as appropriate, oriented in the appropriate position. Observe and report whether or not the specimen continues to burn or presents any additional hazard to the wearer, 7 Single burner static test: Method 2 7.1 Principle The specimen is exposed to a flam
36、e at a temperature of (800 f 50) “C for (12 f 05) s, such that the centre of the flame impinges on the edge of the specimen under test. 7.2 Test rig The test rig consists mainly of a propane cylinder with flow control device, pressure gauge, flashback arrester, specimen support and burner (see Figur
37、e 3). The burner shall either be in accordance with 6.2 or with IS0 6941:1987/AMD 1:1992. The purity of the propane shall be a minimum of 95 %. 5 EN 13274-4:2001 (E) 7.3 Procedure Mount the material or component to be tested on the support such that it is orientated horizontally above the burner. Ad
38、just the height of the burner tip to the lowest part of the horizontal specimen at a distance of (20 f 2) mm. The edge of the specimen shall be positioned directly over the burner during the test. An example is shown in Figure 3. With the specimen removed from above the burner, ignite the burner and
39、 adjust the flame height with the propane flow control valve to (40 f 4) mm. Check that these settings give a flame temperature of (800 f 50) “C at a point (20 I 2) mm above the burner tip, measured with a mineral insulated thermocouple probe, 15 mm diameter (see Figure 4). In order to achieve the c
40、orrect flame temperature at the correct flame height, it may be necessary to shield the whole test rig from the effect of external airflows. Expose the specimen to the flame for (12 k 05) s ensuring that the centre of flame impinges on the edge of the specimen. Observe and report whether or not the
41、specimen continues to burn or presents any additional hazard to the wearer. 8 Single burner moving specimen test: Method 3 8.1 Principle The specimen under test is mounted such that it may be passed through a flame at a temperature of (800 I 50) “C at a speed of (60 15) mmls. 8.2 Test rig The test r
42、ig consists mainly of a propane cylinder with flow control device, pressure gauge, flash back arrester, specimen support, rotation motor with speed controller, and burner (see Figure 4). The burner shall be either be in accordance with 6.2 or with IS0 6941 :I 987/AMD 1:1992. The purity of the propan
43、e shall be a minimum of 95 %. 8.3 Procedure Mount the component on the specimen support, and adjust the position such that the specimen under test passes directly over the tip of the burner when the support is rotated. With the specimen directly over the burner, adjust the height between the tip of
44、the burner and the lowest part of the specimen to (20 t 2) mm. Adjust the rotation speed of the motor such that the linear speed of the specimen, measured at the burner is (60 t 5) mm/s. With the specimen removed from above the burner, ignite the burner and adjust the flame height with the propane f
45、low control valve to (40 f 4) mm. Check that these settings give a flame temperature of (800 150) “Cat a point (20 f 2) mm above the burner tip, measured with a mineral insulated thermocouple probe, 1,5 mm diameter (see Figure 4). In order to achieve the correct flame temperature at the correct flam
46、e height it may be necessary to shield the whole test rig from the effect of external airflows. Pass the specimen once through the flame. Repeat the test with the specimen mounted in a different orientation or with other specimen so that an assessment can be made of all materials or components, as s
47、pecified by the relevant device standard. It is important that no part of the specimen passes through the flame more than once. Observe and report whether or not the specimen continues to burn or presents any additional hazard to the wearer. 6 EN 13274-4:2001 (E) 7 2 5 Key 1 Propane cyiinder 2 Valve
48、 3 Pressure reducer 4 Pressure gauge 5 Flame arrester Dimensions in millimetres N 9 6 Flow meter 7 Burner 8 Thermocouple (0 15) 9 Temperature measuring device Figure 1 -Schematic diagram of apparatus for six burner static test 7 EN 13274-412001 (E) O Ln N Dimensions in millimetres O Vi -0 Ln N O ul
49、N O 4 f t H , 120 4 Detail: plan view Figure 2 -Schematic diagram of arrangement of six burners in six burner static test for facepiece 8 X EN 13274-42001 (E) Dimensions in millimetres Key 1 Propane cyiinder 2 Valve 3 Pressure reducer 4 Pressure gauge 5 Flame arrester 6 Burner 7 Shield a) Material under test Figure 3 -Schematic diagram of apparatus for single burner static flammability test 9 EN 13274-42001 (E) /- Dimensions in millimetres II 4 II .7 Key 1 Rotating motor device (facepieces) 2 Rotating motor device (components) 3 Burner U I 4 4 Thermocouple (0 1.5) 5 Te
