ISO INTERNATIONAL STANDARD 7305 Third edition 2019-03 Milled cereal products Determination of fat acidity Produits de mouture des ceréales - Détermination de I'acidite grasse Reference number IS0 7305:2019(E) Tso @IS02019 IS0 7305:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 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 on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved IS0 7305:2019(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions 4 Principle ..1 5 Reagents. ..1 6 Apparatus ..2 7 Sampling. .2 8 Preparation of test sample .2 .2 8.1 General 8.2 Products not requiring grinding .2 8.3 Products requiring grinding. .3 9 Determination of moisture content of the test sample .3 10 Procedure ..3 10.1 Number of determinations .3 10.2 Test portion. .3 10.3 Determination .3 10.4 Blank test. .3 11 Expression of results .3 12 Precision ..4 12.1 General .4 12.2 Repeatability, r ..4 12.3 Reproducibility, R 4 12.4 Comparison of two sets of measurements in one laboratory .5 12.5 Comparison of two sets of measurements in two laboratories .5 12.6 Uncertainty .5 12.7 Test report ..5 Annex A (informative) Results of interlaboratory tests ..6 Bibliography .8 @ IS0 2019 - All rights reserved ii