SIST EN 149:2001

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Respiratory protective devices - Filtering half masks to protect against particles - Requirements, testing, markingAppareils de protection respiratoire - Demi-masques filtrants contre les particules - Exigences, essais, marquageAtemschutzgeräte - Filtrierende Halbmasken zum Schutz gegen Partikeln - Anforderungen, Prüfung, Kennzeichnung13.340.30Varovalne dihalne napraveRespiratory protective devicesICS:SIST EN 149:2001enTa slovenski standard je istoveten z:EN 149:200101-december-2001SIST EN 149:2001SLOVENSKI
STANDARDSIST EN 149:19961DGRPHãþD







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 149April 2001ICS 13.340.30Supersedes EN 149:1991English versionRespiratory protective devices - Filtering half masks to protectagainst particles - Requirements, testing, markingAppareils de protection respiratoire - Demi-masquesfiltrants contre les particules - Exigences, essais,marquageAtemschutzgeräte - Filtrierende Halbmasken zum Schutzgegen Partikeln - Anforderungen, Prüfung, KennzeichnungThis European Standard was approved by CEN on 8 March 2001.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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 149:2001 E



Page 2EN 149:2001ContentsPageForeword.5Introduction.51Scope.52Normative references.53Terms and definitions.64Description.65Classification.66Designation.67Requirements.67.1General.67.2Nominal values and tolerances.77.3Visual inspection.77.4Packaging.77.5Material.77.6Cleaning and disinfecting.77.7Practical performance.77.8Finish of parts.77.9Leakage.87.9.1Total inward leakage.87.9.2Penetration of filter material.87.10Compatibility with skin.87.11Flammability.97.12Carbon dioxide content of the inhalation air.97.13Head harness.97.14Field of vision.97.15Exhalation valve(s).97.16Breathing resistance.10



Page 3EN 149:20017.17Clogging.107.17.1General.107.17.2Breathing resistance.107.17.3Filter penetration.117.18Demountable parts.118Testing.118.1General.118.2Visual inspection.118.3Conditioning.118.3.1Simulated wearing treatment.118.3.2Temperature conditioning.128.3.3Mechanical strength.128.3.4Flow conditioning.128.4Practical performance.128.4.1General.128.4.2Walking test.128.4.3Work simulation test.138.5Leakage.138.5.1General test procedure.138.5.2Method.158.6Flammability.178.7Carbon dioxide content of the inhalation air.178.8Strength of attachment of exhalation valve housing.188.9 Breathing Resistance.188.9.1 Test samples and fixture.188.9.2 Exhalation resistance.188.9.3 Inhalation resistance.198.10Clogging.198.10.1Principle.198.10.2Test equipment.198.10.3Test conditions.19



Page 4EN 149:20018.10.4Test procedure.218.10.5Assessment of clogging.218.11Filter penetration.219Marking.219.1Packaging.219.2Particle filtering half mask.2210Information to be supplied by the manufacturer.22Annex A (informative)
Marking.36Annex ZA (informative)
Clauses of this European Standard addressing essential requirements orother provisions of EU Directives.37Bibliography.38



Page 5EN 149:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 79 "Respiratoryprotective 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 anidentical text or by endorsement, at the latest by October 2001, and conflicting national standards shallbe withdrawn at the latest by October 2001.This European Standard supersedes EN 149:1991.This European Standard has been prepared under a mandate given to CEN by the EuropeanCommission and the European Free Trade Association, and supports essential requirements of EUDirective(s).For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of thisstandard.Annex A is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and the United Kingdom.IntroductionA given respiratory protective device can only be approved when the individual components satisfy therequirements of the test specification which may be a complete standard or part of a standard, andpractical performance tests have been carried out successfully on complete apparatus where specifiedin the appropriate standard. If for any reason a complete apparatus is not tested then simulation of theapparatus is permitted provided the respiratory characteristics and weight distribution are similar tothose of the complete apparatus.1
ScopeThis European Standard specifies minimum requirements for filtering half masks as respiratoryprotective devices to protect against particles except for escape purposes.Laboratory and practical performance tests are included for the assessment of compliance with therequirements.2 Normative referencesThis 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 listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this European Standard only when incorporated in it by amendment or revision. For undatedreferences the latest edition of the publication referred to applies (including amendments).



Page 6EN 149:2001EN 132, Respiratory protective devices - Definitions of terms and pictogramsEN 134, Respiratory protective devices - Nomenclature of componentsEN 143, Respiratory protective devices - Particle filters - Requirements, testing, markingISO 6941, Textile fabrics - Burning behaviour - Measurement of flame spread properties of verticallyoriented specimens3 Terms and definitionsFor the purposes of this European Standard the definitions given in EN 132 and the nomenclature givenin EN 134 apply.4
DescriptionA particle filtering half mask covers the nose and mouth and the chin and may have inhalation and/orexhalation valve(s). The half mask consists entirely or substantially of filter material or comprises afacepiece in which the main filter(s) form an inseparable part of the device.It is intended to provide adequate sealing on the face of the wearer against the ambient atmosphere,when the skin is dry or moist and when the head is moved.Air enters the particle filtering half mask and passes directly to the nose and mouth area of thefacepiece or, via an inhalation valve(s) if fitted. The exhaled air flows through the filter material and/or anexhalation valve (if fitted) directly to the ambient atmosphere.These devices are designed to protect against both solid and liquid aerosols.5
ClassificationParticle filtering half masks are classified according to their filtering efficiency and their maximum totalinward leakage. There are three classes of devices:FFP1, FFP2 and FFP3.The protection provided by an FFP2 - or FFP3 - device includes that provided by the device of lowerclass or classes.6
DesignationParticle filtering half masks meeting the requirements of this European Standard shall be designated inthe following manner:Particle filtering half mask EN 149, year of publication, class, option.EXAMPLE Particle filtering half mask EN 149 (2000) FFP3D.7
Requirements7.1 GeneralIn all tests all test samples shall meet the requirements.



Page 7EN 149:20017.2 Nominal values and tolerancesUnless otherwise specified, the values stated in this European Standard are expressed as nominalvalues. Except for temperature limits, values which are not stated as maxima or minima shall besubject to a tolerance of ± 5 %. Unless otherwise specified, the ambient temperature for testing shallbe (16 - 32) °C, and the temperature limits shall be subject to an accuracy of ± 1 °C.7.3 Visual inspectionThe visual inspection shall also include the marking and the information supplied by the manufacturer.7.4 PackagingParticle filtering half masks shall be offered for sale packaged in such a way that they are protectedagainst mechanical damage and contamination before use.Testing shall be done in accordance with 8.2.7.5 MaterialMaterials used shall be suitable to withstand handling and wear over the period for which the particlefiltering half mask is designed to be used.After undergoing the conditioning described in 8.3.1 none of the particle filtering half masks shall havesuffered mechanical failure of the facepiece or straps.Three particle filtering half masks shall be tested.When conditioned in accordance with 8.3.1 and 8.3.2 the particle filtering half mask shall not collapse.Any material from the filter media released by the air flow through the filter shall not constitute a hazardor nuisance for the wearer.Testing shall be done in accordance with 8.2.7.6 Cleaning and disinfectingIf the particle filtering half mask is designed for more than a single shift (i.e. not designed for single useonly), the materials used shall withstand the cleaning and disinfecting agents recommended by themanufacturer.Testing shall be done in accordance with 8.4 and 8.5.7.7 Practical performanceThe particle filtering half mask shall undergo practical performance tests under realistic conditions.These general tests serve the purpose of checking the equipment for imperfections that cannot bedetermined by the tests described elsewhere in this standard.Where practical performance tests show the apparatus has imperfections related to wearer'sacceptance, the test house shall provide full details of those parts of the practical performance testswhich revealed these imperfections.Testing shall be done in accordance with 8.4.7.8 Finish of partsParts of the device likely to come into contact with the wearer shall have no sharp edges or burrs.



Page 8EN 149:2001Testing shall be done in accordance with 8.2.7.9 Leakage7.9.1 Total inward leakageThe laboratory tests shall indicate that the particle filtering half mask can be used by the wearer toprotect with high probability against the potential hazard to be expected.The total inward leakage consists of three components: face seal leakage, exhalation valve leakage (ifexhalation valve fitted) and filter penetration.For particle filtering half masks fitted in accordance with the manufacturer’s information, at least 46 outof the 50 individual exercise results (i.e. 10 subjects x 5 exercises) for total inward leakage shall be notgreater than25 % for FFP111 % for FFP25 % for FFP3and, in addition, at least 8 out of the 10 individual wearer arithmetic means for the total inward leakageshall be not greater than22 % for FFP18 % for FFP22 % for FFP3.Testing shall be done in accordance with 8.5.7.9.2 Penetration of filter materialThe penetration of the filter of the particle filtering half mask shall meet the requirements of Table 1.Table 1 — Penetration of filter materialClassificationMaximum initial penetration of test aerosolsSodium chloride test 95 l/minParaffin oil test 95 l/min%%max.max.FFP12020FFP266FFP311A total of 12 particle filtering half masks shall be tested for each aerosol: 3 as received, 3 aftertemperature conditioning in accordance with 8.3.2, 3 after the simulated wearing treatment described in8.3.1, and 3 after the test for mechanical strength in accordance with 8.3.3.Testing shall be done in accordance with 8.11.7.10 Compatibility with skinMaterials that may come into contact with the wearer’s skin shall not be known to be likely to causeirritation or any other adverse effect to health.



Page 9EN 149:2001Testing shall be done in accordance with 8.4 and 8.5.7.11 FlammabilityThe material used shall not present a danger for the wearer and shall not be of highly flammable nature.When tested, the particle filtering half mask shall not burn or not to continue to burn for more than 5 safter removal from the flame.The particle filtering half mask does not have to be usable after the test.Testing shall be done in accordance with 8.6.7.12 Carbon dioxide content of the inhalation airThe carbon dioxide content of the inhalation air (dead space) shall not exceed an average of 1,0 % (byvolume).Testing shall be done in accordance with 8.7.7.13 Head harnessThe head harness shall be designed so that the particle filtering half mask can be donned and removedeasily.The head harness shall be adjustable or self-adjusting and shall be sufficiently robust to hold the particlefiltering half mask firmly in position and be capable of maintaining total inward leakage requirements forthe device.Testing shall be done in accordance with 8.4 and 8.5.7.14 Field of visionThe field of vision is acceptable if determined so in practical performance tests.Testing shall be done in accordance with 8.4.7.15 Exhalation valve(s)A particle filtering half mask may have one or more exhalation valve(s), which shall function correctly inall orientations.Testing shall be done in accordance with 8.2 and 8.9.1.If an exhalation valve is provided it shall be protected against or be resistant to dirt and mechanicaldamage and may be shrouded or may include any other device that may be necessary for the particlefiltering half mask to comply with 7.9.Testing shall be done in accordance with 8.2.Exhalation valve(s), if fitted, shall continue to operate correctly after a continuous exhalation flow of300 l/min over a period of 30 s.Testing shall be done in accordance with 8.3.4.When the exhalation valve housing is attached to the faceblank, it shall withstand axially a tensile forceof 10 N applied for 10 s.Testing shall be done in accordance with 8.8.



Page 10EN 149:20017.16 Breathing resistanceThe breathing resistances apply to valved and valveless particle filtering half masks and shall meet therequirements of Table 2.Testing shall be done in accordance with 8.9.Table 2 — Breathing resistanceClassificationMaximum permitted resistance (mbar)inhalationexhalation30 l/min95 l/min160 l/minFFP10,62,13,0FFP20,72,43,0FFP31,03,03,07.17 Clogging7.17.1 GeneralFor single-use devices only, the clogging test is an optional test.Devices designed to be resistant to clogging, shown by a slow increase of breathing resistance whenloaded with dust, shall be subjected to the treatment described in 8.10.The specified breathing resistances shall not be exceeded before the required dust load of 833 mgh/m3is reached.7.17.2 Breathing resistance7.17.2.1 Valved particle filtering half masksAfter clogging the inhalation resistances shall not exceed FFP1: 4 mbar FFP2: 5 mbar FFP3: 7 mbarat 95 l/min continuous flow;The exhalation resistance shall not exceed 3 mbar at 160 l/min continuous flow.Testing shall be done in accordance with 8.9.7.17.2.2 Valveless particle filtering half masksAfter clogging the inhalation and exhalation resistances shall not exceed FFP1: 3 mbar



Page 11EN 149:2001 FFP2: 4 mbar FFP3: 5 mbarat 95 l/min continuous flow.Testing shall be done in accordance with 8.9.7.17.3 Filter penetrationAll types (valved and valveless) of particle filtering half masks claimed to meet the clogging requirementshall also meet the penetration requirements given in 7.9.2 after the treatment.Testing shall be done in accordance with 8.11.7.18 Demountable partsAll demountable parts (if fitted) shall be readily connected and secured, where possible by hand.Testing shall be done in accordance with 8.2.8 Testing8.1 GeneralIf no special measuring devices and methods are specified, commonly used devices and methods shallbe used.NOTEFor a summary of testing, see Table 4.Before performing tests involving human subjects account should be taken of any national regulationsconcerning the medical history, examination or supervision of the test subjects.8.2 Visual inspectionThe visual inspection is carried out where appropriate by the test house prior to laboratory or practicalperformance tests.8.3 Conditioning8.3.1 Simulated wearing treatmentConditioning by simulated wearing treatment shall be carried out by the following process.A breathing machine is adjusted to 25 cycles/min and 2,0 l/stroke. The particle filtering half mask ismounted on a Sheffield dummy head. For testing, a saturator is incorporated in the exhalation linebetween the breathing machine and the dummy head, the saturator being set at a temperature inexcess of 37 °C to allow for the cooling of the air before it reaches the mouth of the dummy head. Theair shall be saturated at (37
± 2) °C at the mouth of the dummy head. In order to prevent excess waterspilling out of the dummy’s mouth and contaminating the particle filtering half mask the head shall beinclined so that the water runs away from the mouth and is collected in a trap.The breathing machine is brought into operation, the saturator switched on and the apparatus allowed tostabilize. The particle filtering half mask under test shall then be mounted on the dummy head. Duringthe test time at approximately 20 min intervals the particle filtering half mask shall be completelyremoved from the dummy head and refitted such that during the test period it is fitted ten times to thedummy head.



Page 12EN 149:20018.3.2 Temperature conditioningExpose the particle filtering half masks to the following thermal cycle:a) for 24 h to a dry atmosphere of (70
± 3) °C;b) for 24 h to a temperature of (-30
± 3) °C;and allow to return to room temperature for at least 4 h between exposures and prior to subsequenttesting.The conditioning shall be carried out in a manner which ensures that no thermal shock occurs.8.3.3 Mechanical strengthConditioning shall be done in accordance with EN 143.8.3.4 Flow conditioningA total of 3 valved particle filtering half masks shall be tested, one as received and two temperature conditioned inaccordance with 8.3.2.8.4 Practical performance8.4.1 GeneralA total of 2 particle filtering half masks shall be tested: both as received.All tests shall be carried out by two test subjects at ambient temperature and the test temperature andhumidity shall be recorded.Prior to the test there shall be an examination to assure that the particle filtering half mask is in goodworking condition and that it can be used without hazard.Examination shall be done in accordance with 8.2.For the test, persons shall be selected who are familiar with using such or similar equipment.During the tests the particle filtering half mask shall be subjectively assessed by the wearer and after thetest, comments on the following shall be recorded:a) head harness comfort;b) security of fastenings;c) field of vision;d) any other comments reported by the wearer on request.8.4.2 Walking testThe subjects wearing normal working clothes and wearing the particle filtering half mask shall walk at aregular rate of 6 km/h on a level course. The test shall be continuous, without removal of the particlefiltering half mask, for a period of 10 min.



Page 13EN 149:20018.4.3 Work simulation testThe particle filtering half mask shall be tested under conditions which can be expected during normaluse. During this test the following activities shall be carried out in simulation of the practical use of theparticle filtering half mask. The test shall be completed within a total working time of 20 min.The sequence of activities is at the discretion of the test house. The individual activities shall bearranged so that sufficient time is left for the comments prescribed.a) walking on the level with headroom of (1,3
± 0,2) m for 5 min;b) crawling on the level with headroom of (0,70
± 0,05) m for 5 min;c) filling a small basket (see Figure 1, approximate volume = 8 l) with chippings or other suitablematerial from a hopper which stands 1,5 m high and has an opening at the bottom to allow thecontents to be shovelled out and a further opening at the top where the basket full of chippings isreturned.The subject shall stoop or kneel as he wishes and fill the basket with chippings. He shall then lift thebasket and empty the contents back into the hopper. This shall be done 20 times in 10 min.8.5 Leakage8.5.1 General test procedure8.5.1.1 Total inward leakageA total of 10 test specimens shall be tested: 5 as
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