Provides a guide for the reporting of the aluminium oxide content of smelter-grade alumina.RECONFIRMATION NOTICETechnical Committee MN-009 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 25 June 2015.The following are represented on Technical Committee MN-009:Australasian Institute of Mining and MetallurgyAustralian Aluminium CouncilMinerals Council of AustraliaRoyal Australian Chemical Institute