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    BS ISO 9727-4-2007 Cylindrical cork stoppers - Physical tests - Determination of dimensional recovery after compression《圆柱形软木塞 物理试验 压缩后尺寸恢复的测定》.pdf

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    BS ISO 9727-4-2007 Cylindrical cork stoppers - Physical tests - Determination of dimensional recovery after compression《圆柱形软木塞 物理试验 压缩后尺寸恢复的测定》.pdf

    1、BRITISH STANDARD BS ISO 9727-4:2007 Cylindrical cork stoppers Physical tests Part 4: Determination of dimensional recovery after compression ICS 55.100; 79.100 BS ISO 9727-4:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BS

    2、I 2007 ISBN 978 0 580 52943 6 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 9727-4:2007. The UK participation in its preparation was entrusted to Technical Committee PRI/81, Cork. A list of organizations represented on this committee can be obtained

    3、 on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. Dat

    4、e Comments Reference number ISO 9727-4:2007(E)INTERNATIONAL STANDARD ISO 9727-4 First edition 2007-05-15 Cylindrical cork stoppers Physical tests Part 4: Determination of dimensional recovery after compression Bouchons cylindriques en lige Essais physiques Partie 4: Dtermination du taux de retour di

    5、mensionnel aprs compression BS ISO 9727-4:2007ii iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. E

    6、ach member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Internati

    7、onal Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standa

    8、rds adopted by the technical 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. Attention is drawn to the possibility that some of the elements of this document may be the subject

    9、 of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9727-4 was prepared by Technical Committee ISO/TC 87, Cork. This first edition of ISO 9727-4, together with the other parts of ISO 9727:2007, cancels and replaces ISO 9727:1991, which has been tec

    10、hnically revised. ISO 9727 consists of the following parts, under the general title Cylindrical cork stoppers Physical tests: Part 1: Determination of dimensions Part 2: Determination of mass and apparent density for agglomerated cork stoppers Part 3: Determination of humidity content Part 4: Determ

    11、ination of dimensional recovery after compression Part 5: Determination of extraction force Part 6: Determination of liquid tightness Part 7: Determination of dust content BS ISO 9727-4:2007 blank1 Cylindrical cork stoppers Physical tests Part 4: Determination of dimensional recovery after compressi

    12、on 1 Scope This part of ISO 9727 specifies a test method for determining the percentage of diameter recovery of cylindrical cork stoppers, after compression. It is applicable to all types of cylindrical cork stoppers ready for use or semi-worked, intended to be completely inserted in the bottle neck

    13、 (straight cork stoppers). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

    14、 ISO 633, Cork Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 633 and the following apply. 3.1 straight cork stopper ras de bague stopper which is completely introduced in the bottle neck, its superior end reaching the top border of the b

    15、ottle 4 Apparatus 4.1 Vernier gauge, with a constant contact force and a maximum resolution of 0,05 mm, or any other device allowing the same precision to be reached. 4.2 Bottling machine with 4 jaws, with a jaw compression diameter regulated between 15,5 mm and 16 mm. 5 Test conditions 5.1 Environm

    16、ent The test shall be carried out in an environment with the following characteristics: temperature 21 C 4 C; relative humidity of air 60 % 20 %. BS ISO 9727-4:20072 5.2 Cork stoppers 5.2.1 Temperature At the beginning of the test, confirm that the stoppers of the test sample are at a temperature of

    17、 21 C 4 C. 5.2.2 Humidity At the beginning of the test, confirm that the stoppers of the test sample are at a humidity of 6 % 2 %. When the humidity is not between 4 % and 8 %, the result of the humidity obtained shall be referred to in the test report. 6 Sampling From each lot, take the quantity of

    18、 stoppers that correspond to the sampling plan previously agreed between the interested parties. Stoppers from the sample shall not show visible defects that may interfere with the performance of the measurement, namely: stoppers with an abnormal shape (asymmetric, truncated, bevelled); stoppers wit

    19、h gutters or belly irregularities. 7 Procedure Before testing, each stopper shall be numerated. Measure the diameter of each stopper from the sample with the vernier gauge (4.1). The diameter of natural cork stoppers is measured at the perpendicular to the cork growth layers. Measurements are carrie

    20、d out according to ISO 9727-1. Register the result. The result of this first measurement is called D 1 . Using a pen or any other appropriate object, mark the contact points of the vernier gauge stand on the stopper. Introduce the stopper into the bottling machine (4.2). Compress the stopper (diamet

    21、er of compression jaws between 15,5 mm and 16 mm). Then eject the stopper, as though this happens during bottling. Take the stopper from the bottling machine jaws. Three minutes later, measure the stopper diameter again, on the marked contact points. Register the value obtained. The result of this s

    22、econd measurement is called D 2 . 8 Results The percentage of diameter recovery after compression of the stopper is given by the equation: 2 1 100 D D rounded off to the nearest unit. The final test result is the arithmetic average of the results obtained with each stopper from the test sample, expr

    23、essed in percentage, rounded off to the nearest unit, and also the standard deviation. BS ISO 9727-4:20073 9 Test report The test report shall include the following information: a) a reference to this part of ISO 9727; b) complete identification of the sample, including its type and origin; c) sampl

    24、ing report; d) results obtained; e) any deviation from this part of ISO 9727 that may have affected the results. BS ISO 9727-4:2007BS ISO 9727-4:2007 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Stan

    25、dards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the cons

    26、tant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Te

    27、l: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addre

    28、ssed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been publishe

    29、d as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available whic

    30、h give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For d

    31、etails of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding online access to British Standards via British Standards Online can be found at http:/www.bsi- Further information about BSI is avail

    32、able on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduce

    33、d, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type

    34、 or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.


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