INTERNATI0NAL STANDARD (ISO) 2355 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKIYHAPOHAA OPIAHM3AUMA TIO CTAHIAPTW3ALMM·ORGANISATION INTERNATIONALE DE NORMALISATION Chemical analysis of magnesium and its alloys - Determination of rare earths -- Gravimetric method First edition -- 1972-05-01 ISO 2355-1972 (E) UDC 669.721 :546.65 Réf.No.1SO2355-1972 (E) Descriptors : magnesium, magnesium alloys, chemical analysis, gravimetric analysis, rare earth elements. Pricebasedon3pages FOREWORD Iso (the International Organization for Standardization) is a worldwide federation of national standards institutes (IsO Member Bodies). The work of developing International Standards iscarried outthroughISOTechnicalCommittees.Every Member Body interested in a subject for which a Technical Committee has been set up 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. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the ISO Council. International Standard IsO2355 was drawn up by Technical Committee ISO/TC 79, Light metals and their alloys. It was approved in October 1971 by the Member Bodies of the following countries : Austria Ireland South Africa, Rep.of Belgium Italy Sweden Canada Japan Switzerland Egypt, Arab Rep. of Korea, Rep. of Turkey Finland Netherlands UnitedKingdom France NewZealand U.S.A. Germany Norway U.S.S.R. Hungary Poland India Romania No Member Body expressed disapproval of the document. @ International Organization for Standardization, 1972. Printed in Switzerland

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