ISO INTERNATIONAL STANDARD 5725-4 Second edition 2020-03 Accuracy (trueness and precision) of measurement methods and results - Part 4: Basic methods for the determination of the trueness of a standard measurement method Exactitude (justesse et fidélité) des reésultats et méthodes de mesure - Partie 4: Methodes de base pour la détermination de la justesse d'une méthode de mesure normalisée Reference number IS0 5725-4:2020(E) OST @ IS0 2020 IS0 5725-4:2020(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved