ISO INTERNATIONAL STANDARD 9285 First edition 1997-01-15 Abrasive grains and crude -- Chemical analysis of fused aluminium oxide Abrasifs en grains et en roche --- Analyse chimique de I'oxyde d'aluminium électrofondu ISo Reference number ISO 9285:1997(E) Copyright Intemational Organization for Standardization d by IHS Not for Resale ISO 9285:1997(E) Contents Page 1 Scope 1 2 Normative references 1 3Reagents 2 4Apparatus 3 5Procedure 4 6 Gain or loss on ignition 4 7 Determination of silicon dioxide 5 8 Separation of iron, titanium, magnesium and calcium from aluminium 8 9 Iron(ill) oxide determination . 8 10 Titanium dioxide colorimetric determination 10 11 Calcium oxide gravimetric determination 11 12 Magnesium oxide gravimetric determination 12 13 Zirconium oxide gravimetric determination 12 14 Aluminium oxide 14 15 Analysis by atomic absorption spectrometry 14 16 Test report 18 Annex A Other methods of analysis 19 @ISO1997 reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writingfrom the publisher. International Organization for Standardization CasePostale56.CH-1211Geneve20.Switzerland Printed in Switzerland Copyright Intemational Organization for Standardization Provided by IHS under license with IS Not for Resale @ ISO ISO9285:1997(E) Foreword IsO (the International Organization for Standardization) is a worldwide preparing International Standards is normally carried out through isO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be representedonthat committee.Internationai organizations,governmental and non-governmental, in liaison with ISO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (lEC) on all matters of electrotechnical standardization. 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. SO/TC29, Small tools, Subcommittee SC 5, Grinding wheels and abrasives. Annex A of this International Standard is for information only. 1l Copyright Intemational Organization for Standardization ed without lic censefromIHS Not for Resale