ISO INTERNATIONAL STANDARD 28596 First edition 2022-09 Sampling procedures for inspection by attributes - Two-stage sampling plans for auditing and for inspection under prior information Reglesd'échantillonnagepourI'inspectionparattributsPlans d'échantillonnage a deux niveaux pour I'audit et I'inspection des lots en exploitantIinformation a priori Referencenumber IS028596:2022(E) ISO @ISO 2022 IS0 28596:2022(E) COPYRIGHTPROTECTEDDOCUMENT @IS02022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in anyform or byanymeans, electronic or mechanical, including photocopying,or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or ISO's member body in the country of the requester. ISO copyright office CP 401 : Ch.de Blandonnet 8 CH-1214Vernier,Geneva Phone:+41227490111 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @IS02022-All rights reserved