ISO INTERNATIONAL STANDARD 15212-2 First edition 2002-03-01 Oscillation-type density meters - Part 2: Process instruments for homogeneous liquids Densimetres a oscillation- Partie 2: Instruments industriels pour liquides homogenes Reference number ISO 15212-2:2002(E) ISO @ ISO 2002 No reproduction or networking permited without license from IHS Not for Resale ISO15212-2:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, memberbody in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 0947 E-mail [email protected] Web www.iso.ch Printed in Switzerland atgzaiSandardzan @ ISO 2002 - All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO 15212-2:2002(E) Contents Page 1 Scope Normative references 1 3 Termsanddefinitions 4 Principle and functional units .... 2 4.1 Measuring principle 2 4.2 Functional units 2 5 Density sensor 4 5.1: Sensor material 4 5.2Sensor design 6Requirements and tests 4 6.1 General . 6.2 Density measuring transducer 6.3Liquid temperature measurement 6 6.4 Display and output of results 7 6.5Auxiliary units and data transfer 7 6.6 Safety requirements 8 6.7 Electromagnetic compatibility .. 8 7 Preadjustment and adjustment ... 8 7.1 Preadjustment of process density meters 8 7.2 Preadjustment of density measuring transducers 8 7.3 Adjustment of installed density measuring transducers 8 7.4 Adjustment of processing units . 8 8Calibration 9 8.1 Laboratory calibration 9 8.2 In-situ calibration 11 9 Process density meter accuracy 13 9.1Accuracy requirements 13 9.2 Laboratory conformity test 13 9.3In-situ tests 14 9.4 Test procedure and conformity assessment 14 10 Installation 15 11 Operating manual 15 12 Marking 16 Copyright International Organization for Standardization served ili No reproduction or networking pemited without license from IHS Not for Resale