ISO INTERNATIONAL STANDARD 3105 Second edition 1994-12-01 Glass capillary kinematic viscometers Specifications and operating instructions Viscosimetres a capillaire, en verre, pour viscosité cinematique - Specifications et mode d'emploi ISO Reference number ISO 3105:1994(E) Copyright Intemational Organization for Standardization IHS unde networking permitted without license from IHS Not for Resale ISO 3105:1994(E) Contents Page 1 Scope 2 Normative reference 3 Symbols for viscometer parts 4 Viscometer materials and manufacture 2 5 Viscometer holder and alignment 2 6 Calibration of viscometers 2 7 Kinematic viscosity calculation Annexes A ModifiedOstwaldviscometers B Suspended-level viscometers 22 C Reverse-flowviscometers 42? ISO1994 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical,including photocopying anj microfilm, without permission in writing from the publisher. InternationalOrganizationforStandardization CasePostale56·CH-1211Geneve20·Switzerland Printed in Switzerland ii Copyright Intermational Organization for Standardization without license from IHS Not for Resale @ISO ISO 3105:1994(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, governmental and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (lEC)on all matters of electrotechnical standardization. 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. International Standard ISO 3105 was prepared by Technicai Committee ISO/TC 28, Petroleum products and lubricants. This second edition cancels and replaces the first edition (Is0 3105:1976, corrected and reprinted 1984), which has been technically revised. Annexes A, B and C form an integral part of this International Standard. Copyright Intemational Oorganizatin for Standardization ili rmitted without license from IHs Not for Resale