SIST EN 13274-6:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Respiratory protective devices - Methods of test - Part 6: Determination of carbon dioxide content of the inhalation airAppareils de protection respiratoire - Méthodes d'essai - Partie 6: Détermination de la teneur en dioxyde de carbone de l'air inhaléAtemschutzgeräte - Prüfverfahren - Teil 6: Bestimmung des Kohlenstoffdioxid-Gehaltes der Einatemluft13.340.30Varovalne dihalne napraveRespiratory protective devicesICS:SIST EN 13274-6:2002enTa slovenski standard je istoveten z:EN 13274-6:200101-junij-2002SIST EN 13274-6:2002SLOVENSKI
STANDARD







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13274-6December 2001ICS 13.340.30English versionRespiratory protective devices - Methods of test - Part 6:Determination of carbon dioxide content of the inhalation airAppareils de protection respiratoire - Méthodes d'essai -Partie 6: Détermination de la teneur en dioxyde de carbonede l'air inhaléAtemschutzgeräte - Prüfverfahren - Teil 6: Bestimmung desKohlenstoffdioxid-Gehaltes der EinatemluftThis European Standard was approved by CEN on 16 November 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 13274-6:2001 E



EN 13274-6:2001 (E)2ContentspageForeword.3Introduction.41Scope.42Normative references.43Terms and definitions.44Prerequisites.45Test method.55.1Principle.55.2Test equipment.55.2.1General.55.2.2Breathing machine.55.2.3Carbon dioxide sampling arrangement.55.2.4Sheffield head/torso.55.2.5Auxiliary fan.65.2.6Carbon dioxide sampling of ambient air.65.3Procedure for measurement of carbon dioxide in inhalation air.6Annex A (normative)
Fitting procedure for hoods (with or without head harness) which seal aroundthe neck.10A.1Introduction.10A.2Principle.10A.3Apparatus.10A.3.1Sheffield dummy head/torso.10A.3.2Stand and elastic string.10A.3.3Adjustable collar.10A.4Procedure.11Annex B (informative)
Test results - Uncertainty of measurement.14Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.15



EN 13274-6:2001 (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 June 2002, and conflicting national standards shall be withdrawn at the latest byJune 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.This 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 the inhalation airPart 7: Determination of particle filter penetrationPart 8: Determination of dolomite dust cloggingAnnex A is normative. Annex B is informative.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 13274-6:2001 (E)4IntroductionThis standard is intended as a supplement to the specific device standards for respiratory protective devices. Testmethods are specified for complete or parts of devices. If deviations from the test method given in this standard arenecessary, these deviations will be specified in the relevant device standard.1 ScopeThis European Standard specifies the test procedure for measuring the carbon dioxide content in the inhaled air(dead space) of respiratory protective devices.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 of terms and pictograms.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 132 apply, together with thefollowing:3.1ambient conditionsatmosphere where the temperature is 16 °C to 32 °C and the relative humidity is 20 % to 80 %3.2dry atmosphereatmosphere where the relative humidity is less than 20 %3.3wet atmosphereatmosphere where the relative humidity is greater than or equal to 95 %4 PrerequisitesIn order to implement this part of EN 13274, at least the following parameters need to be specified in theappropriate device standard: number of samples; number of repeat tests per sample; sample preconditioning; size(s) of facepiece; use of dummy head or head/torso; method of sealing facepiece to dummy head/torso (if appropriate);



EN 13274-6:2001 (E)5 complete equipment or facepiece only; device air supply on or off;
direction of any supplementary air flow; pass/fail criteria; any deviations from test method.5 Test method5.1 PrincipleThe device is fitted, as described by the device standard, to a Sheffield dummy head/torso and, in the case ofcomplete equipment tests, any air supply is operated in the manufacturer's minimum condition unless prescribedotherwise by that standard. Breathing air containing a defined concentration of carbon dioxide is supplied at aspecified rate from a breathing machine to a dummy head/torso. The inhaled air is analysed for carbon dioxidecontent.The carbon dioxide level measured gives an assessment of the "dead space" of the facepiece rather than a "reallife" measurement of the level of carbon dioxide in the inhaled air.5.2 Test equipment5.2.1 GeneralA typical test arrangement using a single cylinder breathing machine is shown in Figure 1.The total dead space of the gas path of the test installation, excluding the volume of the breathing machine, shallnot exceed 2000 ml.The test shall be carried out at ambient conditions.5.2.2 Breathing machineA breathing machine and associated equipment with solenoid valves controlled by the breathing machine. In orderto avoid errors in the measurement of carbon dioxide in the inhaled air, it is important that the solenoid valves makea good seal on closing and that the timing of their action allows no overlap to occur.5.2.3 Carbon dioxide sampling arrangementA sample of the inhaled air is taken by an auxiliary lung driven by the breathing machine and in phase with it. It isset to inhale a known sample volume (a chosen percentage of the inhalation volume of the breathing machine)during the inhalation stroke of the breathing machine. This apparent "loss" in inhalation volume of the breathingmachine is compensated for by the volume of carbon dioxide fed via the flowmeter into the breathing machine onits inhalation stroke. It is therefore important that these two volumes are equal.The exhaled air is continuously monitored for carbon dioxide content at a flow determined by the analyser. Thesample point is immediately before the solenoid valve in the exhalation circuit. To maintain equilibrium the sampleis returned to the circuit upstream of the sample point.The carb
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