ISO INTERNATIONAL STANDARD 390 Second edition 1993-06-15 Products in fibre-reinforced cement - Sampling and inspection Produits en ciment renforcé par des fibres - Echantillonnage et controle Reference number ISO390:1993(E) Copyright International Organization for Standardization d by IHS unde 1 or networking perm nitted without license from IHS Not for Resale ISO 390:1993(E) Contents Page 1 Scope 2 Normative references 3 Definitions 2 4 Symbols 3 5 Inspection of consignment of finished products 3 6 Inspection of finished products from continuous production process 6 7 Effectsof inspection of finished products from continuous production process on inspection of consignments : Annexes A Rules and sampling tables for inspection by attributes (extract from ISO2859-1) 10 B Rules and sampling tables for inspection by variables by measuring the percentage of nonconforming items (extract from ISO3951) 13 c Examples 14 D OC curves 17 @ISO1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm,without per- mission in writing from the publisher. International Organization for Standardization Case Postale 56:CH-1211Geneve 20·Switzerland Printed in Switzerland ii Copyrightll No reproduction or networking permitted without license from IHS Not for Resale ISO390:1993(E) Foreword isO (the International Organization for Standardization) is a worldwide of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be and non-governmental, in liaison with ISO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. ISO/T 77. Products in fibre reinforced cement Study group for harmonizationwork. This second edition cancels and replaces the first edition (ISO 390:1977), of which it constitutes a technical revision. Annexes A and B form an integral part of this International Standard. An- nexes C and D are for information only. ili No reproduction or networking permitted without license from IHS Not for Resale