ISO-1997-1992.pdf
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1、INTERNATIONAL STANDARD ISO 1997 Second edition 1992-12-01 Granulated cork and cork powder - Classification, properties and packing Granuk crus et poudre de liege - Classification, caracteristiques et emballage Reference number ISO 1997:1992(E) Copyright International Organization for Standardization
2、 Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:25:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1997:1992(E) Foreword ISO (the International Organization for Standardization) is a worldwide feder
3、ation of national Standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Esch member body interested in a subject for which a technical committee has been established has the right to be represented on that commit
4、tee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (1 EC) on all matters of electrotechnical standardization. Draft International Standards adopted by the te
5、chnical committees are 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. International Standard ISO 1997 was prepared by Technical Committee ISODC 87, Cork. This second edition cancels and repl
6、aces the first edition (ISO 1997:1972), of which it constitutes a technical revision. 0 ISO 1992 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronie or mechanical, including photocopying and microfilm, without per- mission in writing
7、 from the publisher. International Organization for Standardization Case Postale 56 l CH-1 211 Geneve 20 l Switzerland Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale,
8、 04/26/2007 03:25:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1997:1992(E) Introduction The use of granulated cork which has been packed and transported in pressed bales presents some Problems for the ultimate User, particularly with regard to bringing its appare
9、nt density back to pre-pressing level. The attention of suppliers is drawn to the necessity of avoiding too high a rate of compression, which might considerably affect the characteristics of the granulated cork as available to the ultimate User. This compression should not affect either the bulk den
10、sity or the granule size values except specific tolerantes agreed between Seller and buyer. . . . Ill Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:25:26 MDTNo reproduction
11、or networking permitted without license from IHS -,-,- This page intentionally left blank Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 03:25:26 MDTNo reproduction or networkin
12、g permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 1997:1992(E) Granulated cork and cork powder - Classification, properties and packing 1 Scope 4 Classification This International Standard specifies the classification Granulated cork and cork powder are classified ac- and propert
13、ies of granulated cork and cork powder cording to the size of the granules and their bulk before pressing, as weil as the methods of packing. density. 2 Normative references 4.1 Classification by grain size The following Standards contain provisions which, through reference in this text, constitute
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