ISO INTERNATIONAL STANDARD 3087 Fifth edition 2020-07 Iron ores Determination ofthe moisture content of a lot Minerais defer-Determination de I'humidited'un lot Referencenumber IS0 3087:2020(E) ISO @ISO 2020 IS0 3087:2020(E) COPYRIGHTPROTECTEDDOCUMENT @IS02020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's memberbody in the country ofthe requester. ISO copyright office CP 40i : Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22.749 01 11 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved IS03087:2020(E) Contents Page Foreword ..iv Introduction ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions 4 Principle ..1 5 Apparatus ..1 6 Samples. .2 7 Procedure .2 7.1 Numberofmoisturemeasurements .2 7.2 .2 Reference methods. 7.2.1 .2 General Normal reference method .3 7.2.2 7.2.3 Optionalreferencemethodfororesofhighcombinedwatercontent 3 7.3 Alternative methods. .3 7.3.1 General .3 7.3.2 Adjustment of drying time only 4 8 ..4 Verification 9 Calculationandexpressionofresults ..4 9.1 Test portion. ..4 Lot. 9.2 10 Testreport ..7 AnnexA (informative)Determination of moisturecontentofadhesiveor wet ironores AnnexB(normative)Correctionsforsprinkledwaterand/orrainwater ..10 AnnexC (informative)Precisionofmoisturemeasurement. ..15 AnnexD (informative)Examplesoftestreports ..16 Bibliography .35 IS0 2020-All rights reserved ili