EN IS0 12569 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM September 2017 ICS91.120.10 SupersedesENIS012569:2012 EnglishVersion Thermal performance of buildings and materials Determination of specific airflow rate in buildings - Tracer gas dilution method (IS0 12569:2017) Performance thermique des batiments et des Warmetechnisches Verhalten von Gebauden und materiaux - Détermination du débit d'air spécifique Werkstoffen - Bestimmung des spezifischen dans les batiments - Methode de dilution de gaz Luftvolumenstroms in Gebauden - traceurs (IS0 12569:2017) Indikatorgasverfahren (IS0 12569:2017) This European Standard was approved by CEN on 6 July 2017. 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 CEN-CENELEC 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 translation under the responsibility ofa CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELECManagementCentre:AvenueMarnix17,B-1000Brussels @2017CEN All rights of exploitation in any form and by any means reserved Ref.No.ENISO 12569:2017E worldwide for CEN national Members. ENIS012569:2017 (E) European foreword This document (ENIS012569:2017) has been prepared by Technical Committee IS0/TC 163"Thermal performance and energy use in the built environment" in collaboration with Technical Committee CEN/TC 89 "Thermal performance of buildings and building components" the secretariat of which is held by SIS. 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of an identical text or by endorsement, at the latest by March 2018 and conflicting national standards shall be withdrawn at the latest by March 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This documentsupersedes ENIS012569:2012. 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 Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta Netherlands, Norway,Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsementnotice ThetextofIS012569:2017hasbeenapprovedbyCENasENIS012569:2017withoutanymodification. 3 Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 Normative references 3 Terms and definitions 4 Measurementmethod and its selection .2 4.1 General .2 4.2 Concentration decaymethod. .4 4.2.1 Principle. 4 .5 4.2.2 Two-point decay method 4.2.3 Multipoint decay method 6 4.2.4 Step-down exhaust concentration method 6 4.2.5 Pulsemethod 7 4.3 Continuous dose method 8 4.3.1 Principle .8 4.3.2 Average inverse concentration method .8 4.3.3 Average concentration method 9 ..10 4.3.4 Stationary concentration method 4.4 Constantconcentration method .10 4.5 Type of tracer gas. .10 4.6 Measurement apparatus. ..11 4.6.1 General .11 4.6.2 Tracer gas