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1、BRITISH STANDARD BS EN 404:1993 Specification for Respiratory protective devices for self-rescue: filter self-rescuer The European Standard EN 404:1993 has the status of a British Standard UDC 614.894.41.7:620.1:62-777:614.8 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:43:39 GMT+00:00 2
2、006, Uncontrolled Copy, (c) BSI BS EN 404:1993 This British Standard, having been prepared under the direction of the Personal Safety Equipment Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 October 1993 BSI 12-1999 The following BSI
3、references relate to the work on this standard: Committee reference PSM/14 Draft for comment 90/45548 DC ISBN 0 580 21248 3 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organi
4、zations of the following countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organiz
5、ation for Standardization IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInsti
6、tuto Portugus da Qualidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun
7、 sheffieldun, na, Sat Nov 04 07:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 404:1993 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Introduction3 1Scope3 2Normative references3 3Definitions and description3 4Classification3 5Requiremen
8、ts3 6Testing6 7Instructions for use10 8Marking11 Annex A (informative) Method for the determination of wet bulb temperature of the inhaled air20 Annex B (normative) Methods of measurement of the insulation resistance of non-metallic carrying containers21 National annex NA (informative) Committees re
9、sponsibleInside back cover National annex NB (informative) Cross-referenceInside back cover Figure 1a Scheme of test rig for filter self-rescuers12 Figure 1b Connector (typical)12 Figure 1c Connecting piece (typical)13 Figure 1d Counter part (typical)13 Figure 2a Scheme of test rig with cooler for f
10、ilter self-rescuers14 Figure 2b Connector (alternative)15 Figure 2c Filtering device connected to alternative connector15 Figure 3 Humidifier (typical)16 Figure 4 Test equipment for vibration test17 Figure 5 Test piece with painted electrodes for insulation resistance test17 Figure 6 Connector for i
11、nhalation and exhalation valve testing at the test rig for filter self-rescuers18 Figure 7 Scheme of test rig for carbon dioxide content of the inhalation air18 Figure 8 Connector for carbon dioxide content of inhalation air (typical)19 Figure 9 Connecting piece for carbon dioxide content of inhalat
12、ion air (typical)19 Figure 10 Counter part of connecting piece for carbon dioxide content of the inhalation air (typical)19 Figure A.1 Schematic arrangement for the determination of wet bulb temperature of the inhaled air20 Figure B.1 Current measurement by microammeter or galvanometer21 Figure B.2
13、Current measurement by means of a d.c. amplifier21 Figure B.3 Comparative method22 Table 1 Classes of filter self-rescuers3 Table 2 Minimum test duration5 Table 3 Testing filter self-rescuers6 Table 4 Testing of devices after completion of transport test8 Table 5 Setting of breathing machine8 Table
14、6 Test conditions9 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 404:1993 ii BSI 12-1999 National foreword This British Standard has been prepared under the direction of the Personal Safety Equipment Standards Policy Committee and is
15、 the English language version of EN 404 Respiratory protective devices for self-rescue Filter self-rescuer Requirements, testing, marking, published by the European Committee for Standardization (CEN). EN 404 was produced as a result of international discussions in which the United Kingdom took an a
16、ctive part. There is no equivalent existing British Standard to EN 404. 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 itself confer im
17、munity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 22, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This wi
18、ll be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 404 June 1993 UDC 614.894.41.7:620.1:62-777:614.8 Descriptors: Accident pr
19、evention, personal protective equipment, respiratory protective equipment, disposal, filters, carbon monoxide, classifications, specifications, tests, marking English version Respiratory protective devices for self-rescue Filter self-rescuer Requirements, testing, marking Appareils de protection res
20、piratoire pour lvacuation Appareil dvacuation filtre Exigences, essais, marquage Atemschutzgerte fr Selbstrettung Filterselbstretter Anforderungen, Prfungen, Kennzeichnung This European Standard was approved by CEN on 1993-04-26. CEN members are bound to comply with the CEN/CENELEC Internal Regulati
21、ons 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 Europ
22、ean 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 natio
23、nal standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Nor
24、mung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 404:1993 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 404:1993 BSI 12-1999 2 Foreword This European Standard has been pr
25、epared by the Technical Committee CEN/TC 79 “Respiratory protective devices” of which the secretariat is held by DIN. The text has been submitted to the formal vote and has been approved by CEN as a European Standard. This European Standard has been prepared under a mandate given to CEN by the Commi
26、ssion of the European Communities and the European Free Trade Association, and supports essential requirements of EC Directive(s). 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 December 1993, an
27、d conflicting national standards shall be withdrawn at the latest by December 1993. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lu
28、xembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 07:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 404:1993 BSI 12-19993 Introduction A given respiratory protective device can only be approved when the
29、 individual components satisfy the requirements of the test specification which may be a complete standard or part of a standard, and practical performance tests have been carried out on a complete device where specified in the appropriate standard. If for any reason a complete device is not tested,
30、 then simulation of the device is permitted provided the respiratory characteristics and mass distribution are similar to those of the complete device. 1 Scope This European Standard specifies performance requirements, test methods and marking requirements for filtering devices designed for protecti
31、on against carbon monoxide as respiratory protective devices for personal escape (in short: filter self-rescuer). Such devices are intended for use against carbon monoxide arising from fire or explosion underground. Laboratory and practical performance tests are included for the assessment of compli
32、ance with the requirements. This standard does not include requirements for training devices. However, when such devices are available care should be taken to ensure that only correct parts are fitted to the filter self-rescuer. 2 Normative references This European Standard incorporates by dated or
33、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 references, subsequent amendments to or revisions of any of these publications apply to this European Standard only w
34、hen incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 132, Respiratory protective devices Definitions. 3 Definitions and description For the purposes of this European Standard the definitions given in EN 132 apply, toget
35、her with the following. A filter self-rescuer is a respiratory protective filtering device in a suitable packing for personal escape designed to protect the wearer against carbon monoxide. It is dependent on ambient atmosphere and does not provide protection against oxygen deficient atmospheres (les
36、s than 17 % oxygen). The filtering device consists of a mouthpiece assembly with a filter. The mouthpiece assembly of the filtering device is connected directly or indirectly to the filter(s). Filter self-rescuers are of various minimum test durations as specified in this standard. 4 Classification
37、Filter self-rescuers are classified according to the minimum test duration. NOTEThe duration achieved in use may be different from the minimum test duration measured under laboratory conditions. Table 1 Classes of filter self-rescuers 5 Requirements NOTEThe requirements and test methods are based on
38、 experience with existing design of filter self-rescuers incorporating Hopcalite and drier. Consideration should be given to the behaviour of designs incorporating other filtering materials. 5.1 Design The device shall be sufficiently robust to withstand the rough usage it is likely to receive when
39、carried on the person or during service. The device shall be designed such that there are no parts, sharp edges or burrs likely to be caught on projections in narrow passages or that may harm the wearer. The filter self-rescuer shall be designed such that the outside of the carrying container can be
40、 cleaned easily. If the filtering device is fitted with a coarse dust filter bag, this filter bag shall be easily detachable. Testing in accordance with 6.1 and 6.3. 5.2 Materials The carrying container and the locking device shall be adequately protected against corrosion. The materials used shall
41、be able to withstand temperatures and mechanical stress expected when carried on the person or stored on machines and vehicles. Exposed parts, i.e. those which may be subjected to impact during use of the device, shall not be made of aluminium, magnesium, titanium or alloys containing such proportio
42、ns of these metals as will, on impact, give rise to frictional sparks capable of igniting flammable gas mixtures. Testing in accordance with 6.3. ClassMinimum test duration FSR 1 A, FSR 1 B60 min FSR 2 A, FSR 2 B75 min FSR 3 A, FSR 3 B90 min FSR 4 A, FSR 4 B120 min Licensed Copy: sheffieldun sheffie
43、ldun, na, Sat Nov 04 07:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 404:1993 4 BSI 12-1999 To prevent electrostatic charges on non-metallic carrying containers the insulation resistance shall not exceed 109 7. Testing in accordance with 6.4.6. 5.3 Compatibility with skin Materials that may c
44、ome into contact with the wearers skin and the inhaled air shall not be known to be likely to cause irritation or any other adverse effect to health. Testing in accordance with 6.1 and 6.3. 5.4 Cleaning and disinfection All parts requiring cleaning and disinfecting shall be able to withstand cleanin
45、g and disinfecting agents recommended by the manufacturer. 5.5 Mass That part of the mass of the filtering device supported by the head, ready for use, shall not exceed 800 g. The determination of the mass shall be carried out where appropriate. 5.6 Means for carrying The carrying container shall be
46、 provided with a carrying means, which ensures comfortable, safe and, if required, continuous carrying on the person. This may also be achieved by additional measures, e.g. a carrying bag. Testing in accordance with 6.3.2. When the device is designed to be carried on the person, the tear-off force o
47、f the carrying means shall be not less than 400 N and shall not exceed 800 N. Testing in accordance with 6.4.10.3. 5.7 Harness The filtering device shall have a harness which ensures comfortable and safe wearing of the device when donned. The harness shall be adjustable or elastic or a suitable comb
48、ination of both. Testing in accordance with 6.3. Each strap of the harness shall withstand a pull of 50 N applied as a shock and then maintained for 10 s in the direction in which the harness is pulled when the device is donned. Testing in accordance with 6.4.10.2. 5.8 Handling The filter self-rescu
49、er shall be capable of being donned in accordance with the manufacturers instructions for use in a quick and simple manner without undue exertion. The locking device shall be protected against being opened inadvertently. It shall be apparent whether or not the device has been opened and therefore requires inspection. Testing in accordance with 6.3. Any part of the filter self-rescuer used to pull the filtering device from its carrying or storage container shall withstand a force of 400 N
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