BS ISO BRITISH STANDARD 6145-10:2002 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 10: Permeation method ICS 71.040.40 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSISO 6145-10:2002 National foreword This British Standard reproduces verbatim IS0 6145-10:2002 and implements it as the UK national standard. It supersedes BS 4559-7:1981 which is withdrawn. The UKparticipation in its preparation was entrusted to Technical Committee PTI/15, Natural gas and gas analysis, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled"International Standards Correspondence Index", or by using the“Find"facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does notofitself confer immunity from legal obligations. This British Standard, having Summary of pages been prepared under the direction of the Materials and This document comprises a front cover, an inside front cover, the ISO title page, Licensed Copy: sheffieldun s Chemicals Sector Policy and pages ii to v, a blank page, pages 1 to 16, an inside back cover and a back cover. Strategy Committee, was published under the authority The BSI copyright date displayed in this document indicates when the of the Standards Policy and document waslastissued. Strategy Committee on 25 March 2002 Amendments issued sincepublication Date Amd. No. Comments BSI 25 March 2002 ISBN0580392694 ISO INTERNATIONAL STANDARD 6145-10 First edition 2002-02-01 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods - Part 10: Permeation method Analysedes gazPreparation desmelanges degazpourétalonnagea I'aidedemethodesvolumétriquesdynamiques- Partie10:Méthodeparperméation Reference number ISO 6145-10:2002(E) ISO ISO 6145-10:2002(E) I= ISO 6145-10:2002(E) , Uncontrolled Copy, (c) BSI Contents Page Foreword Introductior 1 Scope. 2 Normative reference 3 Principle. 4 Reagents and materials . 5 Apparatus 6 Procedure.. 6.1 Preliminarychecksandoperatingconditions.. 6.2 Determinationofmassloss Expressionofresults 7.1 Calculation... 7.2 Sources ofuncertainty. 7.3 Estimationofuncertainties. 7.4 Examplecalculationofuncertainties Bibliography ii ISO6145-10:2002(E) BS Foreword ISO (the International Organization for Standardization)is a worldwide federation of national standards bodies (isO Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3 6 by the technical committees are circulated to the member bodies for voting. Publication as an International 2 Standard requires approval by at least 75% of the member bodies casting a vote. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO6145-10waspreparedbyTechnicalCommitteeISO/TC158,Analysisofgases. GN 04:22:00 It cancels and replaces ISO6349:1979whichhasbeentechnicallyrevised. Iso 6145 consists of the following parts, under the general title Gas analysis- Preparation of calibration gas mixturesusingdynamicvolumetricmethods: Part 1: Methods of calibration Part 2: Volumetric pumps Part 4:Continuous injectionmethod : sheffieldun sheffieldun, Part5:Capillarycalibrationdevices Part 6: Cri