SIST EN 13274-7:2008
(Main)Respiratory protective devices - Methods of test - Part 7: Determination of particle filter penetration
Respiratory protective devices - Methods of test - Part 7: Determination of particle filter penetration
This European Standard specifies the procedure for testing particle filter penetration for respiratory protective devices.
Atemschutzgeräte - Prüfverfahren - Teil 7: Bestimmung des Durchlasses von Partikelfiltern
Diese Europäische Norm legt das Verfahren zum Prüfen des Durchlasses von Partikelfiltern für Atemschutz¬geräte fest.
Appareils de protection respiratoire - Methode d'essai - Partie 7 : Détermination de la pénétration des filtres à particules
La présente Norme européenne spécifie le mode opératoire utilisé pour vérifier la pénétration des filtres à particules pour appareils de protection respiratoire.
Oprema za varovanje dihal - Metode preskušanja - 7. del: Ugotavljanje penetracije delcev v filter
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Respiratory protective devices - Methods of test - Part 7: Determination of particle filter penetrationOprema za varovanje dihal - Metode preskušanja - 7. del: Ugotavljanje penetracije delcev v filterAppareils de protection respiratoire - Methode d'essai - Partie 7 : Détermination de la pénétration des filtres à particulesAtemschutzgeräte - Prüfverfahren - Teil 7: Bestimmung des Durchlasses von PartikelfilternTa slovenski standard je istoveten z:EN 13274-7:2008SIST EN 13274-7:2008en,fr,de13.340.30ICS:SIST EN 13274-7:20031DGRPHãþDSLOVENSKI
STANDARDSIST EN 13274-7:200801-maj-2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13274-7January 2008ICS 13.340.30Supersedes EN 13274-7:2002
English VersionRespiratory protective devices - Methods of test - Part 7:Determination of particle filter penetrationAppareils de protection respiratoire - Methode d'essai -Partie 7 : Détermination de la pénétration de filtres àparticulesAtemschutzgeräte - Prüfverfahren - Teil 7: Bestimmung desDurchlasses von PartikelfilternThis European Standard was approved by CEN on 5 December 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13274-7:2008: E
EN 13274-7:2008 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Pre-requisites.5 5 Test requirements.6 5.1 General.6 5.2 Penetration test.6 5.3 Exposure test.6 5.4 Storage test.7 6 Sodium chloride test method.7 6.1 Principle.7 6.2 Test equipment.7 6.3 Test conditions.8 6.4 Procedure.8 6.5 Calculation of the penetration.9 7 Paraffin oil test method.9 7.1 Principle.9 7.2 Test equipment.9 7.3 Test conditions at filter.10 7.4 Procedure.10 7.5 Calculation of the penetration.11 Annex A (normative)
Test results - Uncertainty of measurements.17 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directives.18
EN 13274-7:2008 (E) 3 Foreword This document (EN 13274-7:2008) has been prepared by Technical Committee CEN/TC 79 “Respiratory protective devices”, the secretariat of which 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 July 2008, and conflicting national standards shall be withdrawn at the latest by July 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13274-7:2002. This document has 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 89/106/EEC. For relationship with EU Directive 89/106/EEC, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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, Sweden, Switzerland and the United Kingdom.
EN 13274-7:2008 (E) 4 Introduction This European Standard is intended as a supplement to the specific device standards for respiratory 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.
EN 13274-7:2008 (E) 5
1 Scope This European Standard specifies the procedure for testing particle filter penetration for respiratory protective devices. 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 132:1998, Respiratory protective devices — Definitions of terms and pictograms EN 13274-5, Respiratory protective devices — Methods of test — Part 5: Climatic conditions 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 132:1998 apply. 4 Pre-requisites In order to implement this part of EN 13274, at least the following parameters need to be specified in the appropriate device standard: items to be tested; number of samples; test method(s); flow rate through the filter; sequence of conditioning phases, where more than one is required; specification of any observations to be carried out; sample preparation and orientation; sample holding; in the case of the exposure test, the specified mass of test aerosol; pass/fail criteria; any deviations from this method.
EN 13274-7:2008 (E) 6 5 Test requirements 5.1 General 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 tolerance of ± 5 %. Unless otherwise specified the ambient temperature for testing shall be in the range between 16 °C and 32 °C and the temperature limits shall be subject to an accuracy of ± 1 °C. Two test aerosols are used for measurement of filter penetration: a) Sodium Chloride, using the equipment described in Clause 6: b) Paraffin Oil, using the equipment described in Clause 7. NOTE Laboratories should give consideration to the following factors: Test chamber should be designed to minimise air velocity variations across the surface of the filter under test. Localised high air velocity (“jets”), may result inartificially high filter penetration. Paraffin oil used for testing should not have been exposed to heating and compressed air for a long period of time, as this may alter the composition of the oil, possibly causing inaccurate results. Replacement of paraffin oil in the test rig should be done every 3 months. The test aerosol is fed into the test chamber, where the particle filtering device under test is mounted under a leaktight manner on a suitable adaptor. Aerosol is passed through the device and the aerosol concentration is measured immediately before and after the particle filtering device by the photometer. 5.2 Penetration test The measurement of penetration, according to 5.1, shall be taken as the average over a time of (30 + 3) s, beginning 3 min after the start of the aerosol test. 5.3 Exposure test Penetration shall be recorded throughout the test at sample intervals not exceeding 5 min. NOTE Continuous recording of penetration is recommended. For particle filtering devices being tested using paraffin oil, continue the test until the particle filtering device has been exposed to the specified mass of the test aerosol as defined in the appropriate device standard. For particle filtering devices being tested using sodium chloride, continue the test until the particle filtering device has been exposed to the specified mass of the test aerosol as defined in the appropriate device standard, unless: a) for single shift use particle filtering devices, the penetration shows continued decline for 5 min or 5 sample intervals, whichever is the greater; b) for re-useable particle filtering devices, the penetration shows continued decline for 5 min or 5 sample intervals, whichever is the greater, and the maximum penetration is lower than when tested using paraffin oil test aerosol. If these conditions are met, the exposure test may be terminated early. Report the maximum penetration during exposure.
EN 13274-7:2008 (E) 7 5.4 Storage test For re-useable particle filtering devices the storage test shall be performed immediately after the completion of the exposure test. Remove the particle filtering device from the penetration test chamber and store the particle filtering device in accordance with EN 13274-5, for duration of (24 ± 1) h under ambient conditions as described in 3.1 of EN 13274-5:2001, ensuring that particle filtering devices are not in contact with each other. The particle filtering device shall not be removed from the suitable adaptor if this may result in damage to the device. After storage, immediately repeat the penetration test according to 5.2. 6 Sodium chloride test method 6.1
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