ISO INTERNATIONAL STANDARD 3733 Second edition 1999-09-15 Petroleum products and bituminous materials Determination of water Distillation method Produits pétroliers et produits bitumineux Dosage de I'eau-Methode pardistillation ISO Reference number ISO 3733:1999(E) vided by IHS under license with IS ted without license from IHS Not for Resale ISO 3733:1999(E) Contents 1Scope 2 Normative references . 3 Principle. 4 Reagents 4.1 Aromatic solvent.. 4.2 Petroleum distillate solvent. 4.3 Paraffinic solvents... 5Apparatus 5.1 General. 6 Verification and recovery test.. ...6 6.1General 6.2 Verification . 6.3 Recovery test 7 Sampling (see annex A) .... 7.1 General 7.2 Laboratory sample. 7.3 Preparation of the test samples 8Procedure 9 Calculation. .8 10 Expressions of results 11 Precision. 11.1 Repeatability 11.2 Reproducibility.. 12 Test report. .10 Annex A (normative) Sample handling . @ISO1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic International OrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland Internet [email protected] Printed in Switzerland Not for Resal @ISO ISO 3733:1999(E) Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(lSo 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 liaison with IsO, also take part in the work. iSO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote ISO 3733 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants, Subcommittee SC 6, Bulk cargo transfer, accountability, inspection and reconciliation. revision. Annex A forms an integral part of this International Standard ii