BS IS0 20720:2018 BSl Standards Publication Microbeam analysis Methods of specimen preparation for analysis of general powders using WDS and EDS bsi. BSISO20720:2018 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 20720:2018 The UK participation in its preparation was entrusted to Technical Committee Cll/9, Microbeam analysis. A list of organizations represented on this committee can be obtained on requestto its secretary. Technical Committee CIl/9, which oversees the UK interest for standards by Technical Committee ISO/TC 202,agreed that this standard should be adopted as a British Standard.The committee would liketo reinforce the statement that it applies only to analysis of'general'powders, but is concerned that each powder may require a special method of preparation that is not adequately discussed in the standard. This means that the standardmaynot applyto procedures for special applications such as forensic or trace analysis. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correct application. TheBritish Standards Institution 2019 PublishedbyBSIStandardsLimited2019 ISBN9780580912146 ICS71.040.99 Compliance witha British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissuedsincepublication Date Text affected BSIS020720:2018 ISO INTERNATIONAL STANDARD 20720 First edition 2018-10-15 Microbeam analysis Methods of specimen preparation for analysis of general powders using WDS and EDS Analyseparmicrofaisceaux-Methodesdepreparationdes échantillonspourI'analysedes particules Reference number IS0 20720:2018(E) ISO @IS0 2018