1、BRITISH STANDARD BS ISO 9727-1:2007 Cylindrical cork stoppers Physical tests Part 1: Determination of dimensions ICS 55.100; 79.100 BS ISO 9727-1:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2007 ISBN 978 0 580 52946
2、7 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 9727-1:2007. 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 on request to its secretary
3、. 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. Date Comments Reference number
4、ISO 9727-1:2007(E)INTERNATIONAL STANDARD ISO 9727-1 First edition 2007-05-15 Cylindrical cork stoppers Physical tests Part 1: Determination of dimensions Bouchons cylindriques en lige Essais physiques Partie 1: Dtermination des dimensions BS ISO 9727-1:2007ii iii Foreword ISO (the International Orga
5、nization 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. Each member body interested in a subject for which a technical committee has been establis
6、hed 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 International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization
7、. 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 Standards adopted by the technical committees are circulated to the member bodies for voting. P
8、ublication 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 of patent rights. ISO shall not be held responsible for identifying any or all such pate
9、nt rights. ISO 9727-1 was prepared by Technical Committee ISO/TC 87, Cork. This first edition of ISO 9727-1, together with the other parts of ISO 9727:2007, cancels and replaces ISO 9727:1991, which has been technically revised. ISO 9727 consists of the following parts, under the general title Cylin
10、drical 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: Determination of dimensional recovery after compression Part 5: Determination of extraction for
11、ce Part 6: Determination of liquid tightness Part 7: Determination of dust content BS ISO 9727-1:2007 blank1 Cylindrical cork stoppers Physical tests Part 1: Determination of dimensions 1 Scope This part of ISO 9727 specifies a test method for determining the dimensions of cylindrical cork stoppers,
12、 namely diameter, length and, in some cases, ovalisation. It is applicable to all types of cylindrical cork stoppers as defined in ISO 633, ready for use or semi-worked. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refere
13、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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
14、ovalisation natural cork stoppers difference between measurements of diameter carried out along the perpendicular and along the parallel to the cork growth layer 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 pr
15、ecision to be reached. 5 Test conditions 5.1 Environment 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 9727-1:20072 5.2 Cork stoppers 5.2.1 Temperature At the beginning of the test, confirm that th
16、e stoppers of the test sample are at a temperature of 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 r
17、eport. 6 Sampling From each lot, take the amount of 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 sh
18、ape (asymmetric, truncated, bevel); stoppers with gutters or belly irregularities. 7 Procedure Before testing, each stopper shall be numerated. 7.1 Determination of diameter 7.1.1 Natural corkwood stoppers On each stopper of the test sample and using the vernier gauge or any other device allowing th
19、e same precision (4.1) to be reached, measure the diameter at half the distance between ends and following the parallel to the growth layers of cork, in millimetres. Register the value obtained. Repeat the procedure following the perpendicular to the growth layers of cork, in millimetres. Register t
20、he value obtained. 7.1.2 Agglomerated cork stoppers and stoppers “1+1” (a disc on each end) On each stopper of the test sample and using the vernier gauge or any other device allowing the same precision (4.1) to be reached, measure the diameter at half the distance between ends, in millimetres. Regi
21、ster the value obtained (only one measurement per stopper). 7.1.3 Agglomerated cork stoppers with one or several discs on the same end On each stopper of the test sample and using the vernier gauge or any other device allowing the same precision (4.1) to be reached, measure the diameter, in millimet
22、res, at the limit line between the agglomerated body and disc(s), at the glued surface. Register the value obtained (only one measurement per stopper). 7.2 Determination of length On each stopper of the test sample and using the vernier gauge or any other device allowing the same precision (4.1) to
23、be reached, measure the length, in millimetres. Carry out the measurement by introducing the stopper between stands of the vernier gauge, in such a way that the central axis of the stopper goes through the stand of the vernier gauge. Register the value obtained. BS ISO 9727-1:20073 8 Results 8.1 Dia
24、meter 8.1.1 Natural cork stoppers For each stopper, calculate the arithmetic average of both measurements taken. Express the result in millimetres, rounded off to the nearest tenth. The final test result is the arithmetic average of the results obtained with each stopper of the test sample, expresse
25、d in millimetres rounded off to 0,1, and also the standard deviation, the maximum and the minimum results rounded off to 0,1. 8.1.2 Other stoppers For each stopper, the diameter is expressed in millimetres, rounded off to the nearest tenth. The final test result is the arithmetic average of the resu
26、lts obtained with each stopper of the test sample, expressed in millimetres, rounded off to 0,1, and also the standard deviation, the maximum and the minimum results rounded off to 0,1. 8.2 Length For each stopper, the length is expressed in millimetres, rounded off to the nearest tenth. The final t
27、est result is the arithmetic average of the results obtained with each stopper of the test sample, expressed in millimetres, rounded off to 0,1, and also the standard deviation, the maximum and the minimum results rounded off to 0,1. 8.3 Ovalisation For each natural cork stopper, calculate the diffe
28、rence between the two measurements taken. Express the result in millimetres, rounded off to the nearest tenth. The final test result is the arithmetic average of the result obtained with each stopper of the test sample, expressed in millimetres, rounded off to 0,1, and also the standard deviation, t
29、he maximum and the minimum results rounded off to 0,1. 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) sampling report; d) results obtained; e) any deviation fr
30、om this part of ISO 9727 that may have affected the results. BS ISO 9727-1:2007BS ISO 9727-1:2007 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europ
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