ISO INTERNATIONAL STANDARD 9029 First edition 1990-12-15 Crude petroleum --- Determination of water Distillation method Petrole brut -- Determination de la teneur en eau -- Methode de distillation Reference number ISO 9029:1990(E) Noreproduction Not for Resale ISO 9029:1990(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing international Standards is normally carried out through iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with Iso, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote International Standard isO 9029 was prepared by Technical Committee IsO/TC28,Petroleumproductsandlubricants Annex A forms an integral part of this International Standard ISO1990 C All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii Not for Resale d without license from IHS ISO 9029:1990(E) INTERNATIONAL STANDARD Crude petroleum -- Determination of water --- Distillation method WARNiNG -- The use of this International Standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Scope Significance 1 & This International Standard specifies a method for A knowledge of the water content of crude oil is im determining water in crude oil by distillation. The portant in the refining, purchase, sale and transfer precision data have only been determined for water of products contents up to 1 % (V/V). The amount of water as determined by this method is used to correct the volume involved in the custody transferofoil Normative references 2 Principle 4 The following standards contain provisions which, through reference in this text, constitute provisions A test portion is heated under reflux conditions with of this International Standard. At the time of publi- a water-immiscible solvent which co-distills with the cation, the editions indicated were valid. All stan- water in the sample. Condensed solvent and water dards are subject to revision, and parties to arecontinuouslyseparatedinatrap.Thewaterset- agreements based on this International Standard tles in the graduated section of the trap,and the are encouraged to investigate the possibility of ap- solvent returns to the distillation flask. plying the most recent editions of the standards in- dicated below. Members of IEC and ISO maintain registers of currently valid International Standards. Apparatus 5 Iso 383:1976, Laboratory glassware -- Interchange- able conical ground joints. Usual laboratory apparatus, together with the fol- lowing: ISO 3170:1988, Petroleum liquids sampling. 5.1 General. Iso 3171:1988, Petroleum liquids -- Automatic pipe- The recommended apparatus, shown in figure 1, line sampling. consists of a glass distillation flask, a condenser, a iso 4259:1979, Petroleum products - Determination graduated glass trap and a heater. Other types of and application of precision data in relation