SIST EN 404:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Oprema za varovanje dihal pri samoreševanju - Filter z ustnikom za varovanje pred ogljikovim monoksidom za uporabo pri samoreševanjuAtemschutzgeräte für Selbstrettung - Filterselbstretter mit Mundstückgarnitur zum Schutz gegen KohlenmonoxidAppareils de protection respiratoire pour l'évacuation - Auto-sauveteur avec ensemble embout buccal a filtre monoxide de carboneRespiratory protective devices for self-rescue - Filter self-rescuer from carbon monoxide with mouthpiece assembly13.340.30Varovalne dihalne napraveRespiratory protective devicesICS:Ta slovenski standard je istoveten z:EN 404:2005SIST EN 404:2005en01-julij-2005SIST EN 404:2005SLOVENSKI
STANDARDSIST EN 404:19961DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 404
April 2005 ICS 13.340.30 Supersedes EN 404:1993 English version
Respiratory protective devices for self-rescue - Filter self-rescuer from carbon monoxide with mouthpiece assembly
Appareils de protection respiratoire pour l'évacuation - Auto-sauveteur avec ensemble embout buccal à filtre monoxide de carbone
Atemschutzgeräte für Selbstrettung - Filterselbstretter mit Mundstückgarnitur zum Schutz gegen Kohlenmonoxid This European Standard was approved by CEN on 3 March 2005.
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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 404:2005: ESIST EN 404:2005

Methods of measurement of the insulation resistance of non-metallic carrying containers.37 A.1 Voltmeter ammeter method.37 A.2 Comparative method.37 Annex B (informative)
Method for the determination of wet bulb temperature of the inhaled air.40 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC Personal Protective Equipment.42
In the class, the numbers 1 - 4 indicate the minimum duration time as seen in the Table 1. The letters A and B indicate the flow rates 30 l/min and 40 l/min. Devices passing “rough usage” requirements shall be marked “R”. SIST EN 404:2005

Type A Type B
FSR 1 30 40 60 FSR 2 30 40 75 FSR 3 30 40 90 FSR 4 30 40 120
NOTE The minute volume for testing filter self-rescuers is based on practical experiences in many countries where such devices are in use for various mining applications. Testing shall be done in accordance with 7.6.1. 6.18.2 Carbon monoxide - breakthrough criteria The carbon monoxide concentration of the inhalation air for type B shall not exceed 200 ml/m3 time weighted average in any single 5 min interval. The total carbon monoxide slip of inhalation air for type A shall not exceed 400 ml during the minimum test duration. The total carbon monoxide slip of inhalation air for type B shall not exceed 200 ml during the minimum test duration. Testing shall be done in accordance with 7.6.1 and 7.6.2. 6.18.3 Temperature and humidity The temperature of inhalation air for type A shall not exceed 90 °C dry bulb and 50 °C wet bulb during the minimum test duration. The temperature of the inhalation air for type B shall not exceed 85 °C dry bulb and 50 °C wet bulb during the minimum test duration. Testing shall be done in accordance with 7.6.1 and 7.6.2. 6.18.4 Breathing resistance The inhalation resistance for type A shall not exceed 12 mbar during the minimum test duration. The exhalation resistance shall not exceed 3,5 mbar during the minimum test duration. The inhalation resistance for type B shall not exceed 7 mbar during the minimum test duration. The exhalation resistance shall not exceed 2,5 mbar during the minimum test duration. Testing shall be done in accordance with 7.6.1, 7.6.2 and 7.6.3. 6.19 Practical performance In addition to the machine tests described, the device shall also undergo simulated practical performance tests under realistic conditions. These practical performance tests serve the purpose to check the device for imperfections that cannot be determined by the tests described elsewhere in this document. If during any activity, by any test subject the test subject fails to finalise the selected activity due to the apparatus being not fit for the purpose for which it has been designed, the apparatus shall be deemed to have failed. SIST EN 404:2005

EN 13274-2:2001. These answers will be used by the test house to determine if the apparatus passes or fails. If for any reason practical performance tests underground are not permissible, then the test house shall conduct simulated realistic equivalent tests, describe these tests, and provide the results thereof so that other test houses can duplicate the tests and assess the results. Testing shall be done in accordance with 7.5. 7 Testing 7.1 General If no special measuring devices or measuring methods are specified, commonly used methods and devices should be applied. Before performing tests involving human subjects, account should be taken of any national regulations concerning the medical history, examination or supervision of the test subjects. NOTE For summary of testing see Table 6. 7.2 Nominal values and tolerances Unless otherwise specified, the values stated in this document are expressed as nominal values. Except for temperature limits, values which are not stated as maxima or minima shall be subject to a tolerance of ± 5 %. Unless otherwise specified, the ambient temperature for testing shall be from 16 °C to 32 °C, but for the mechanical tests from 10 °C to 30 °C, and the temperature limits shall be subject to an accuracy of ± 1 °C. 7.3 Visual Inspection The visual inspection shall be made by the test house prior to laboratory or practical performance tests. This may entail a certain amount of dismantling in accordance with the manufacturer’s instructions for maintenance. The visual inspection shall include the assessment of the device marking and information supplied by the manufacturer and any safety data sheets (if applicable) or declarations relevant to the materials used in its construction. 7.4 Conditioning 7.4.1 General Where, as specified in Table 6, conditioning before subsequent testing is required, the procedure shall be one of those described in 7.4.2, 7.4.3, 7.4.4 or 7.5.2. 7.4.2 Mechanical strength test Three filter self-rescuers shall be tested. The apparatus is shown schematically in Figure 7 and consists of a steel case (K) which shall be fixed on a vertically moving piston (S), capable of being lifted up 20 mm by a rotating cam (N) and dropping down onto a steel plate (P) under its own mass as the cam rotates. The mass of the steel case shall be more than 10 kg. The weight of the steel plate onto which the steel case falls should be at least 10 times the weight of the steel case. This may be achieved by bolting the base plate to a hard solid floor. SIST EN 404:2005

used for the test shall satisfy the following conditions:  bucket diameter approximately 70 cm;  bucket depth approximately 70 cm;  two inner blades at approximately 17 cm from the bottom;  rotating at approximately 25 revolutions per min. Three filter self-rescuers, as received, shall be placed in the cement mixer and tested for a total of 800 revolutions. NOTE It may be necessary to protect the closure device from accidental opening during the test. 7.4.4 Temperature conditioning Eight filter self-rescuers shall be tested. For the escape test underground (optional) 2 additional filter self-rescuers shall be tested. The filter self-rescuer shall be exposed during successive tests: a) for 72 h to an atmosphere of (70 ± 3) °C; at less than 20 % relative humidity b) for 72 h to an atmosphere of (70 ± 3) °C at 95
% to 100 % relative humidity and c) for 24 h to a temperature of (-30 ± 3) °C.
1) Information can be obtained from the secretariat of CEN/TC 79. SIST EN 404:2005
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