BSENISO6145-7:2018 BSI Standards Publication Gas analysis - Preparation of calibration gas mixtures using dynamic methods Part 7: Thermal mass-flow controllers bsi. BRITISH STANDARD BS EN IS06145-7:2018 National foreword This British Standard is the UK implementation of EN IS0 6145-7:2018. It supersedes BS EN IS0 6145-7:2010, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PTI/15, Natural Gas and Gas Analysis. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @ The British Standards Institution 2019 Published by BSI Standards Limited 2019 ISBN9780580511707 ICS 71.040.40 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2019. Amendments/corrigenda issued since publication Date Text affected EUROPEAN STANDARD EN IS0 6145-7 NORME EUROPEENNE EUROPAISCHE NORM December 2018 ICS 71.040.40 Supersedes EN IS0 6145-7:2010 English Version Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 7: Thermal mass-flow controllers (IS0 6145-7:2018) Analyse des gaz - Préparation des mélanges Gasanalyse - Herstellung von degazpourétalonnageaI'aidedemethodes Kalibriergasgemischen mit Hilfe von dynamisch- dynamiques - Partie 7: Regulateurs thermiques volumetrischen Verfahren - Teil 7: Thermische dedébitmassique (Is06145-7:2018) Massendurchflussregler (IS0 6145-7:2018) This European Standard was approved by CEN on 16October 2018. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this 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 of a CEN member into its own language and notified to the CEN-CENELEC ManagementCentrehasthesamestatusastheofficialversions. 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,TurkeyandUnitedKingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17,B-1000 Brussels @2018CEN All rights of exploitation in any form and by any means reserved Ref. No.EN ISO 6145-7:2018: E worldwidefor CEN national Members