ISO INTERNATIONAL STANDARD 12224-2 First edition 1997-12-15 Flux cored solder wire Specification and test methods - Part 2: Determination of flux content Fils d'apport de brasage, pleins et a flux incorpore -- Specifications et methodesd'essai Partie2:Détermination de lateneuren flux ISO Reference number ISO 12224-2:1997(E) Copyright Intermational Organization for Standardization rovided byIHS nitted without license from IHS Not for Resale ISO 12224-2:1997(E) Foreword ISsO (the International Organisation 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 (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 international Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 12224-2 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 12, Soldering and brazing materials. ISO 12224 consists of the following parts, under the general title Solder wire, solid and flux cored - Specification and test methods: Part 1: Classification and performance requirements -Part 2: Determination of flux content -Part 3: Wetting balance test Annex A of this part of ISO 12224 is for information only ISO1997 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 and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 . CH-1211 Geneve 20 . Switzerland Internet [email protected] X.400 C=ch;a=400net; p=iso; o=isocs: S=central Printed in Switzerland Not for Resale INTERNATIONAL STANDARD @iSO ISO 12224-2:1997(E) Flux cored solder wire Specification and test methods -- Part 2: Determination of flux content 1 Scope This Part of ISO 12224 specifies two methods for the determination of the flux content of a sample flux cored solder wire. 2 Principle A known mass of the sample of flux cored solder wire is melted, separated from the flux medium and weighed. The flux content is calculated and expressed as a percentage by mass of the original wire. 3 Apparatus and materials 3.1 Degreasing solvent, such as propan-2-ol or the solvent recommended by the manufacturer. 3.2 Balance, having an accuracy of ± 0,001 g. 3.3 Porcelain crucible, capacity 30 ml 3.4 Scraper, stainless. 3.5 Crucible tongs 3.6 Solder bath, containing solder, such as ISO 9453, grade S-Sn60Pb40, maintained at a temperature of 50 °C ± 5 °C above the liquidus temperature of the wire under test. 3.7 Tissues 3.8 Glycerol 3.9 Glass beaker, pyrex, 100 ml - 150 ml. - ense from IHS Not for Resale