235 Uranium isotope abundance certified reference material for gamma spectrometry EC nuclear reference material 171 certification report. Report

Commission of the European Communities ber information 235 Uranium isotope abundance certified reference material for gamma spectrometry EC nuclear reference material 171 certification report Commission of the European Communities ber information 235 Uranium isotope abundance certified reference material for gamma spectrometry EC nuclear reference material 171 certification report P. de Bièvre \ H.L Eschbach1, R. Lesser1 H. Meyer1, J. van Audenhove1, B.S. Carpenter2 1 Central Bureau for Nuclear Measurements CEC — Joint Research Centre B-2440 Geel 2 National Bureau of Standards Gaithersburg, Maryland, USA Directorate-General Science, Research and Development Joint Research Centre 1986 EUR 10503 EN Published by the COMMISSION OF THE EUROPEAN COMMUNITIES Directorate-General Information Market and Innovation Bâtiment Jean Monnet LUXEMBOURG LEGAL NOTICE Neither the Commission of the European Communities nor any person acting on behalf of then is responsible for the use which might be made of the following information Cataloguing data can be found at the end of this publication Luxembourg, Office for Official Publications of the European Communities, 1986 ISBN 92-825-6289-1 Catalogue number:| © ECSC-EEC-EAEC, Brussels · Luxembourg, 1986 Printed in Belgium Table of Contents Page 1. Introduction 1 2. Description and intended use 3 3. Quantities to be certified and specified 7 4. Fabrication of the Reference Samples 9 4.1.