STANDARDS AS/NZS ISO 33405:2024 STANDARDS NEWZEALAND EMANATAUTIKANGAOAOTEAROA Australia ISO 33405:2024 Australian/New Zealand StandardTM Reference materials Approaches for characterization and assessment of homogeneity and stability AS/NZSISO33405:2024 This Joint Australian/New Zealand StandardTM was prepared by Joint Technical Committee CH-040, Reference Materials. It was approved on behalf of Standards Australia's Standards DevelopmentandAccreditationCommitteeon19July2024andbytheNewZealand StandardsApprovalBoard on07August 2024. This Standard was published on 30 August 2024. The following are represented on Committee CH-040: Australian Radiation Protection and Nuclear Safety Agency CSIRO Global Proficiency International Accreditation New Zealand Metrology Society of Australasia National Association of Testing Authorities Australia National Measurement Institute NewZealandLeather&ShoeResearchAssociation Responsible Care New Zealand University of New South Wales This Standard was issued in draft form for comment as DR AS/NZS ISO 33405:2024. Keeping Standards up-to-date Ensure you have the latest versions of our publications and keep up-to-date about Amendments, Rulings, Withdrawals, and new projects by visiting: www.standards.org.au www.standards.govt.nz ISBN 978 1 76139 782 0 AS/NZS ISO 33405:2024 ISO 33405:2024 Australian/New Zealand StandardTM Reference materials - Approaches for characterization and assessment of homogeneity and stability Originated as SAA/SANZ HB 19.35:1991. Revised and redesignated as SA HB 19.35:2018. Jointly revised and redesignated as AS/NZS IS0 33405:2024. COPYRIGHT ISO2024-All rights reserved @ Standards Australia Limited/the Crown in right of New Zealand, administered by the New Zealand Standards Executive 2024 All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical,including photocopying,without the written permission of the publisher, unless otherwise permitted under the Copyright Act 1968 (Cth) or the Copyright Act 1994 (New Zealand).