ISO INTERNATIONAL STANDARD 9555-4 First edition 1992-11-01 Measurement of liquid flow in open channels Tracer dilution methods for the measurement of steady flow - Part 4: Fluorescent tracers Mesure de debit des liquides dans les canaux decouverts -- Methodes de dilution en regime permanent utilisant des traceurs - Partie 4: Traceurs fluorescents Reference number ISO 9555-4:1992(E) Not for Resale ISO 9555-4:1992(E) Contents Page Scope > 2 Normative reference 3 Definitions 4 Tracers used 4.1 General 4.2 Fluorescein 2 4.3 Rhodamine B 2 4.4 Acid yellow 7 2 4.5 Sulfo rhodamine B 2 4.6 Pyranine 4.7 Rhodamine WT 2 5 Tracer measurement 2 5.1 Principles 5.2 Fieid measurement 5 5.3 Laboratory measurements 5 Environmental factors affecting tracers 6 6.1 Chemical factors 6.2 Physical factors 6 6.3 Biological factors Techniques for tracer injection 7 Sampling techniques 8 9 Analysis and computations 8 10 Special requirements ISO1992 All rights reserved. No part of this publication may be reproduced or utilized tn 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 56CH-1211 Geneve 20Switzerland Printed in Switzeriand ii Copyright International Organization for Standardization Not for Resale se from IHS ISO 9555~4:1992(E) Annex General characteristics of commonly used fluorescent tracers A 9 ili No reproductio Not for Resale