SIST EN 13274-3:2002
(Main)Respiratory protective devices - Methods of test - Part 3: Determination of breathing resistance
Respiratory protective devices - Methods of test - Part 3: Determination of breathing resistance
This European Standard specifies the general procedure for measurement of breathing resistance of filters for respiratory protective devices and respiratory protective devices incorporating facepieces, except for diving for respiratory protective devices. The requirements and any special conditions for the apparatus, and of filter measurements are described in the relevant device standard.
Atemschutzgeräte - Prüfverfahren - Teil 3: Bestimmung des Atemwiderstandes
Diese Europäische Norm legt das allgemeine Verfahren zum Messen des Atemwiderstandes von Filtern für Atemschutzgeräte und Atemschutzgeräten mit Atemanschlüssen, ausgenommen Tauchgeräte, für Atemschutz-geräte fest. Die Anforderungen und alle besonderen Messbedingungen und Filtermessungen werden in der entsprechenden Gerätenorm beschrieben.
Appareils de protection respiratoire - Méthodes d'essai - Partie 3: Détermination de la résistance respiratoire
La présente Norme européenne spécifie le mode opératoire général pour déterminer la résistance respiratoire des filtres pour appareils de protection respiratoire et des appareils de protection respiratoire munis de pieces faciales, a l'exception des appareils de plongée. Les exigences ainsi que toutes les conditions spéciales de mesure de filtre sont décrites dans la norme correspondant a l'appareil.
Oprema za varovanje dihal – Metode preskušanja – 3. del: Ugotavljanje dihalne upornosti
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Respiratory protective devices - Methods of test - Part 3: Determination of breathing resistanceOprema za varovanje dihal – Metode preskušanja – 3. del: Ugotavljanje dihalne upornostiAppareils de protection respiratoire - Méthodes d'essai - Partie 3: Détermination de la résistance respiratoireAtemschutzgeräte - Prüfverfahren - Teil 3: Bestimmung des Atemwiderstandes13.340.30Varovalne dihalne napraveRespiratory protective devicesICS:SIST EN 13274-3:2002enTa slovenski standard je istoveten z:EN 13274-3:200101-junij-2002SIST EN 13274-3:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13274-3September 2001ICS 13.340.30English versionRespiratory protective devices - Methods of test - Part 3:Determination of breathing resistanceAppareils de protection respiratoire - Méthodes d'essai -Partie 3: Détermination de la résistance respiratoireAtemschutzgeräte - Prüfverfahren - Teil 3: Bestimmung desAtemwiderstandesThis European Standard was approved by CEN on 17 August 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 13274-3:2001 E
EN 13274-3:2001 (E)2ContentspageForeword.3Introduction.41Scope.42Normative references.43Terms and definitions.44Pre-requisites.45General test requirements.56Method 1: Static breathing resistance.56.1Principle.56.2Equipment.56.3Procedure.56.3.1Ambient conditions.56.3.2Procedure for filters.56.3.3Procedure for other devices.67Method 2 : Dynamic breathing resistance.67.1Principle.67.2Equipment.77.3Procedure.77.3.1General.77.3.2Inhalation resistance.77.3.3Exhalation resistance.7Annex A (normative)
Fitting procedure for hoods which seal around the neck and which may or maynot incorporate a head harness.13A.1Introduction.13A.2Principle.13A.3Apparatus.13A.3.1Sheffield dummy head/torso.13A.3.2Stand and elastic string, for hoods which do not incorporate a head harness.13A.3.3Adjustable collar.13A.4Procedure.14Annex B (normative)
Test results - Uncertainty of measurement.17Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.18
EN 13274-3:2001 (E)3ForewordThis European Standard 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 orby endorsement, at the latest by March 2002, and conflicting national standards shall be withdrawn at the latest byMarch 2002.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean 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 13274-3 is one of several Parts, which are as follows:Part 1: Determination of inward leakage and total inward leakagePart 2: Practical performance testsPart 3: Determination of breathing resistancePart 4: Flame testsPart 5: Climatic conditionsPart 6: Determination of carbon dioxide content of inhalation airPart 7: Determination of aerosol penetration of particle filtersPart 8: Determination of dolomite dust clogging of particle filtersThe annexes A and B are normative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries 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.
EN 13274-3:2001 (E)4IntroductionThis European Standard is intended as a supplement to the specific device standards for respiratory protectivedevices. Test methods are specified for complete or parts of devices. If deviations from the test method given inthis standard are necessary, these deviations will be specified in the relevant device standard.1 ScopeThis European Standard specifies the general procedure for measurement of breathing resistance of filters forrespiratory protective devices and respiratory protective devices incorporating facepieces, except for diving forrespiratory protective devices. The requirements and any special conditions for the apparatus, and of filtermeasurements are described in the relevant device standard.2 Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to, or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 132, Respiratory protective devices – Definitions.3 Terms and definitionsFor the purposes of this European Standard, the definitions given in EN 132 apply, together with the following:3.1inhalation resistanceflow resistance of the device during inhalation3.2exhalation resistanceflow resistance of the device during exhalation3.3static breathing resistanceinhalation resistance or exhalation resistance at defined constant flow expressed as a pressure differencemeasured between ambient and a specified point within the device3.4dynamic breathing resistancepeak inhalation resistance or peak exhalation resistance at a defined sinusoidal flow expressed as a pressuredifference measured between ambient and a specified point within the device4 Pre-requisitesIn order to implement this European Standard, at least the following parameters shall be specified in the relevantdevice standard: number of specimens; specimen
pre-conditioning;
EN 13274-3:2001 (E)5 which test method (1 or 2); mounting of the specimen; preparation of the specimen; which flow rates; deviations; number of repeat tests per specimen; size of facepiece; orientation of support for device; pass/fail criteria.5 General test requirementsUnless otherwise specified, the values stated in this European Standard are expressed as nominal values. Except fortemperature limits, values which are not stated as maxima or minima shall be subject to a limit deviation of + 5 %.Unless otherwise specified, the ambient temperature for testing shall be between 16 °C and 32 °C and the temperaturelimits shall be subject to a limit deviation of + 1 °C.6 Method 1: Static breathing resistance6.1 PrincipleThe device is mounted on a support as described in the relevant device standard, and air is passed through thedevice at a constant flow.NOTE
The convention of reporting breathing resistance is that if during the inhalation resistance test, the pressure inside thefacepiece relative to atmosphere is negative, no sign is used in front of the result. If the relative pressure inside the facepiece ispositive, the result is prefixed with a ‘+’.6.2 Equipment6.2.1Pressure gauge, calibrated in the appropriate range and with a sensitivity better than 10% of the limit valueof breathing resistance specified in the relevant device standard.6.2.2Flowmeter(s) calibrated in the appropriate range.6.2.3Regulated blower/compressed air source or a variable suction device.6.2.4Support for the device (e.g. filter holder, Sheffield dummy head with insert or torso with insert) as describedin the relevant device standard.6.3 Procedure6.3.1 Ambient conditionsIf ambient conditions differ from 23 °C and 1 bar absolute, all flow rates shall be adjusted so that they give thecorrect flow rate when corrected to 23 °C and 1 bar absolute.6.3.2 Procedure for filtersTwo methods of passing air through the filter are possible and typical examples are shown in Figures 1a) and 1b).The first method employs a chamber in which the filter holding device is fixed (see Figure 1a)). Air is directed into
EN 13274-3:2001 (E)6the chamber from a suitable controlled source and exits through the filter and holder system. The pressure dropacross the system to ambient is measured at a pressure tapping mounted on the chamber wall. The secondmethod draws air through the filter holding device (see Figure 1b)) and the pressure drop is measured betweenambient and a pressure port fitted at a suitable point between the
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