ISO INTERNATIONAL STANDARD 8165-1 First edition 1992-01-15 Water quality -- Determination of selected monovalent phenols Part 1: Gas-chromatographic method after enrichment by extraction Qualite de I'eau -- Dosage des phenols monovalents selectionnes - Partie 1: Methode par chromatographie en phase gazeuse apres enrichissement par extraction Reference number ISO 8165-1:1992(E) ed without license from IHS Not for Resale ISO 8165-1:1992(E) Foreword Iso (the International Organization for Standardization) is a worldwide 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. IsoO 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 8165-1 was prepared by Technical Committee ISO/TC 147, Water quality, Sub-Committee SC 2, Physical, chemical, biochemicalmethods. iso 8165 consists of the following parts, under the general title Water quality - Determination of selected monovalent phenols: Part 1: Gas chromatographic method after enrichment by ex- traction Part 2: Method after derivatization with pentafluoro-benzoyl bro- mide C ISo 1992 Alf rights reserved. No part of this publlcation may be reproduced or utllized In any form or by any means,electronic or mechanlcal, including photocopying and microfilm, without permission in writing from the pubtisher. International Organizatlon for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland Not for Resale sefromIHS ISO 8165-1:1992(E) Introduction in the determination of phenols by gas chromatography, several pre- treatment methods may be applied depending on the problem to be Basically, the extraction procedure described in this Inter- solved. national Standard may be applied to all kinds of water. Compared with derivatization procedures, the limits of determination achievable with this procedure are not quite as low. On the other hand, the derivatization procedures are more likely to be interfered with by compounds such as amines and sometimes alcohols, therefore these procedures cannot be applied to all kinds of waste water. ii working permited without license from IHS Not for Resale