ISO INTERNATIONAL STANDARD 3016 Third edition 2019-04 Petroleum and related products from natural or synthetic sources Determination of pour point Produits petroliers et connexes d'origine naturelle ou syntheétique - Détermination du point d'écoulement Reference number IS0 3016:2019(E) osi @IS02019 IS0 3016:2019(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: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved IS0 3016:2019(E) Contents Page Foreword ..iv 1 Scope 2 Normative references ..1 3 Terms and definitions 4 Principle ..2 5 Apparatus. 6 Sampling. ..3 7 Procedure ..4 8 Expression of results .6 9 Precision .6 9.1 General. .6 9.2 Lubricating oils .6 9.2.1 General .6 9.2.2 Repeatability ..6 9.2.3 Reproducibility .6 9.3 Middle distillate and residual fuels .6 9.3.1 General. .6 9.3.2 Repeatability 9.3.3 Reproducibility 7 10 Test report. ..7 Annex A (normative) Specifications of temperature measuring devices. .8 Annex B (informative) Commonly used chemicals and freezing mixtures ..10 Annex C (informative) Actual derived precision values ..11 Bibliography. ..12 @ IS0 2019 - All rights reserved ii