150 3711 90 E S62E0T0 E06TS9h ISO INTERNATIONAL 3711 STANDARD Second edition 1990-12-15 Corrected and reprinted 1991-03-15 Lead chromate pigments and lead chromate-molybdate pigments --- Specifications and methods of test Pigments a base de chromate et de chromomolybdate de plomb -- Spécifications et methodes d'essai Reference number ISO 3711:1990(E) COPYRIGHT, International Organization for Standardization Licensed byInformationHandlingServio 150 3711 90 962E0T0 E06T59h 5 ISO 3711:1990(E) Foreword IsoO (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, govern- mental and non-governmental, in liaison with iso, also take part in the work. Iso collaborates closely with the International Electrotechnicali Commission (IEC) on all matters of electrotechnical standardization. Draft International standards adopted by the technical committees are tional Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IsO 3711 was prepared by Technical Committee IsO/TC35,Paintsandvarnishes. This second edition cancels and replaces the first edition (IsO 3711:1976), of which it constitutes a technical revision. ISO1990 All rights reserved. No part of this publication may be reproduced or utlized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permlssion in writing from the publisher. Internatlonal Organizatlon for Standardizatlon Case Postale 56: CH-1211 Geneve 20· Switzerland Prlnted in Switzerland International Organization for Standardization COPYRIGHT 150 3711 90 262E0T0 E06T59 ISO 3711:1990(E) INTERNATIONAL STANDARD Lead chromate pigments and lead chromate-molybdate pigments --- Specifications and methods of test Iso 787-4:1981, General methods of test for pigments 1 Scope and extenders -- Part 4: Determination of acidity or alkalinity of the aqueous extract. This International Standard specifies the require- ments and the corresponding methods of test for the Iso 787-5:1980, General methods of test for pigments following pigments identified by Colour index num and extenders - Part 5: Determination of oil ab- bers1): orange 21, yellow 34 and red 104. These pig- sorption value. ments are suitable for general use. Iso 787-7:1981, General methods of test for pigments NOTE 1 The chemical identity of these pigments is and extenders -- Part 7: Determination of residue on given in table 1. sieve -- Water method --- Manual procedure. Iso 787-8:1979, General methods of test for pigments 2 Normative references and extenders --- Part 8: Determination of matter soluble in water -- Cold extraction method. The following standards contain provisions which through reference in this text, constitute provisions Iso 787-9:1981, General methods of test for pigments of this international Standard. At the time of publi- and extenders - Part 9: Determination of pH value cation, the editions indicated were valid. All stan- dards are subject to revision, and parties to of an aqueous suspension. agreements based on this International Standard Iso 787-15:1986, General methods of test for pig- are encouraged to investigate the possibility of ap ments and extenders -- Part 15: Comparison of re- plying the most recent editions of the standards in- sistance to light of coloured pigments of similar dicated below. Members of IEC and IsO maintain types. registers of currently valid International Standards. Iso 787-16:1986, General methods of test for pig- Iso 385-1:1984, Laboratory glassware -- Burettes - Part 1: General requirements. ments and extenders - Part 16: Determination of relative tinting strength (or equivalent