BS ISO BRITISH STANDARD 12988-2:2004 Carbonaceous materialsusedinthe production of aluminium : Baked anodes - Determination of the reactivity to carbon dioxide - Part 2: Thermogravimetric method Confirmed April 2008 res 71.100.10 BSi British Standards BS ISO 12988-2:2004 National foreword This British standard reproduces verbatim rs0 12988-2:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical eommittee err/24, Raw materials for the aluminium industry, 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 publications referred to in this document may be found in the BSI Catalogue under the section entitled "rnternational standards eorrespondence rndex", or by using the "search' facility of the BSI Electronic Catalogue or of British standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance witha British Standard does not ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the rsO title page, pages ii to v, a blank page, pages 1 to 12, an inside back cover and a back cover. The Bsr copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication This British standard was published undertheauthority Amd. No. Date eomments of the standards Policy and strategy eommittee on 1December2004 @ Bsr 1 December 2004 ISBN 0 580 44925 4 BS ISO. 12988-2:2004 INTERNATIONAL ISO STANDARD 12988-2 First edition 2004-09-15 Carbonaceous materials used in the production of aluminium - Baked anodes - Determination of the reactivity to carbon dioxide - Part 2: Thermogravimetric method Produitscarbones utilisespourlaproduction del'aluminium -Anodes cuites - Determination de la reactivite au dioxyde de carbone Partie 2: Methode thermogravimetrique Reference number ISO 12988-2:2004(E) BS ISO 12988-2:2004 ii BS ISO 12988-2:2004 Contents Page Foreword Introduction 1 Scope. 2 Normative references. 3 Terms and definitions. 4 Principle.. 5 Apparatus 6 Reagents. 7 Sample. 8 Calibration. 9 Procedure 10 Calculation of results. 11 Precision and bias.. 12 Test report Bibliography ii BS.ISO 12988-2:2004 Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. oxide, cryolite, aluminium fluoride, sodium fluoride, carbonaceous products for the aluminium industry IsO 12988 consists of the following parts, under the general title Carbonaceous materials used in the production