INTERNATIONAL STANDARD 1SO 3139-1976/A1-1980 92-bETE 4851903 0016785 1 G-76-0s tso Published 1980-03-15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXKIYHAPOAHA OPTAHW3AIIH JHO CTAHIAPTW3ALIWW.ORGANISATION INTERNATIONALE DE NORMALISATION Aqueous hydrofluoric acid for industrial use --- Sampling and methods of test AMENDMENT 1 Amendment 1 to International Standard ISO 3139-1976 was developed by Technica! Committee ISO/TC 47, Chemistry. It was submitted directly to the Iso Council, in accordance with clause 5.10.1 of part 1 of the Directives for the technical work of Iso. Page 3 Sub-clause 4.7 : In the second line of the note concerning the definition of o, replace "1,0 g/mi" by "1,2 g/ml". 1976/A1-1980 UDC 661.487 : 54-145 : 620.1 Ref. No. 1SO 3139-1976/A1-1980 (E) Descriptors : hydrofluoric acid, sampling, chemical analysis, determination of content, fluorosilicic acid, impurities. n for Standardization Not for Resale mitted without license from IHS 0 9L-bETE 485190300167863 (ISO 3139 NTERNATIONAL STANDARD -9l-0S Aqueous hydrofluoric acid for industrial use -- Sampling and methods of test Acide fluorhydrique en solution a usage industriel - Echantillonnage et methodes d'essai Second edition - 1976-04-15 ISO 3139-1976 (E) UDC 661.487 : 54-145 : 620.1 Ref. No. ISO 3139-1976 (E) Descriptors : hydrofiuoric acid, sampling, chemical analysis, determination of content, fluorosilicic acid, impurities. Price based on 4pages opyright Not for Resale r networking rmitted without license from IHS 29 E6 -6ETE FOREWORD IsO (the International Organization for Standardization) is a worldwide federation of national standards institutes (IsO Member Bodies). The work of developing International Standards is carried out through IsO Technical Committees. 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 ISsO Council. International IsO/TC 47, Chemistry. This second edition results from the incorporation of Addendum 1 in the first edition of the Standard. This Addendum (clause 5 of the present document) was circulated to the Member Bodies in December 1974, and has been approved by the Member Bodies of the following countries : Austria Hungary Spain Belgium India Switzerland Bulgaria [taly Turkey Chile Netherlands United Kingdom Czechoslovakia U.S.S.R. Poland Egypt, Arab Rep. of Portugal Yugoslavia France Romania Germany South Africa, Rep. of No Member Body expressed disapprovai of the document. This second edition cancels and replaces the first edition (i.e. ISO 3139-1974) which had been approved by the Member Bodies of the foilowing countries : Austria India South Africa, Rep. of Belgium Israel Spain Bulgaria Italy Switzerland Thailand Czechoslovakia Netherlands Egypt, Arab Rep. of New Zealand Turkey France Poland United Kingdom Germany Portugai U.S.S.R. Hungary Romania No Member Body had expressed disapproval of the document. n,forStandardization,1976 edby IHS under Not for Resale