ISO INTERNATIONAL STANDARD 6883 Fifth edition 2017-02 Animal and vegetable fats and oils Determination of conventional mass per volume (litre weight in air) Corps gras d'origines animale et vegétale - Détermination de la masse volumique conventionnelle (poids du litre dans I'air) Reference number IS0 6883:2017(E) International Organization for Standardization @ IS0 2017 ee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 mitted without license from IHS IS0 6883:2017(E) COPYRIGHT PROTECTED DOCUMENT 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 017 - All rights reserVed networking permited without license from IHS IS0 6883:2017(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus. ..1 6 Sampling. ..3 7 Preparation of test sample ..3 8 Procedure .3 8.1 Calibration of pyknometer ..3 8.2 Determination .3 8.2.1 General .3 8.2.2 Fats which are solid at ambient temperatures .4 8.2.3 Using the Jaulmes pyknometer. 4 8.2.4 Using the Gay-Lussac pyknometer ..4 9 Expression of results .5 9.1 Calculation of the volume of the pyknometer .5 9.2 Calculation of the conventional mass per volume. ..6 10 Precision .7 10.1 Interlaboratory tests .7 10.2 Repeatability 10.3 Reproducibility 7 11 Test report ..7 Annex A (informative) Results of interlaboratory tests .9 Bibliography .11 iii Not for Resale, 2017/5/11 02:23:10 icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 without license from IHS