ISO INTERNATIONAL STANDARD 6320 Fifth edition 2017-02 Animal and vegetable fats and oils - Determination of refractive index Corps gras d'origines animale et vegétale - Détermination de I'indice deréfraction Reference number IS0 6320:2017(E) International Organization for Standardization See=ZHEJIANG INST OF STANDARDIZATION C1 5956617 @ IS0 2017 vided by IHS under I Not for Resale, 2017/5/11 02:37:09 r:networking permitted without license from IHS IS0 6320:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZAISQ 07 - All rights reserved Not for Resale, 2017/5/11 02:37:09 networking permited without license from IHS IS0 6320:2017(E) Contents Page Foreword ..iv 1 Scope 2 Normative reference ..1 3 Terms and definitions 4 Principle 5 Reagents. ..2 6 Apparatus. .2 7 Sampling. 8 Preparation of test sample ..2 9 Procedure. .2 9.1 Calibration of the instrument 9.2 Determination .3 10 Calculation ..3 11 Precision .4 11.1 Interlaboratory test ..4 11.2 Repeatability .4 11.3 Reproducibility .4 12 Test report .4 Annex A (normative) Results of an interlaboratory test ..5 Bibliography 6 iii icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 without license from IHS