BS-ISO-5636-5-2003.pdf
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1、BRITISH STANDARD BS ISO 5636-5:2003 Paper and board Determination of air permeance and air resistance (medium range) Part 5: Gurley method ICS 85.060 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 5636-5:2003 This British Standard
2、was published under the authority of the Standards Policy and Strategy Committee on 31 March 2006 BSI ISBN 0 580 48020 8 National foreword This British Standard reproduces verbatim ISO 5636-5:2003 and implements it as the UK national standard. It supersedes BS 6538-3:1987 which is withdrawn. The UK
3、participation in its preparation was entrusted to Technical Committee PAI/11, Methods of test for paper, board and pulp, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which im
4、plement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not pur
5、port to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committ
6、ee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a
7、blank page, pages 1 to 8, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006,
8、Uncontrolled Copy, (c) BSI Reference number ISO 5636-5:2003(E) INTERNATIONAL STANDARD ISO 5636-5 Second edition 2003-06-01 Paper and board Determination of air permeance and air resistance (medium range) Part 5: Gurley method Papier et carton Dtermination de la permabilit lair et de la rsistance lai
9、r (valeur moyenne) Partie 5: Mthode Gurley BS ISO 5636-5:2003 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents Foreword
10、iv Introduction v 1Scope 1 2Normative references . 1 3Terms and definitions. 1 4Principle. 2 5Apparatus and materials 2 6Sampling 3 7Conditioning 3 8Preparation of test pieces 3 9Procedure 4 10Expression of results 4 11Precision 5 12Test report . 5 Annex A (informative) Variations in apparatus 6 Ann
11、ex B (normative) Volume calibration. 7 BS ISO 5636-5:2003 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
12、 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 established has the right to be represented on that committee. International organizations, governmental
13、 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directiv
14、es, 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. Publication as an International Standard requires approval by at least 75 % of the member bodies
15、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 patent rights. ISO 5636-5 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subc
16、ommittee SC 2, Test methods and quality specifications for paper and board. This second edition cancels and replaces the first edition (ISO 5636-5:1986), which has been technically revised. In this edition, the factor to be used for the calculation of air permeance (10.1) has been changed to 135,3 (
17、from calculation factor 127 in the first edition). The new factor for calculation of air permeance will cause an increase in the level of the result of approximately 7 %. To avoid confusion in trade due to the fact that some laboratories are not aware of this new edition and thus will still use the
18、factor 127, it is important to report the calculation factor used. ISO 5636 consists of the following parts, under the general title Paper and board Determination of air permeance and air resistance (medium range): ? Part 1: General method ? Part 2: Schopper method ? Part 3: Bendtsen method ? Part 4
19、: Sheffield method ? Part 5: Gurley method BS ISO 5636-5:2003 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction This part of ISO 5636 describes a method for measuring the air permeance or, if required, the air resistance of pape
20、r and board using the measurement principle known as “Gurley”. The air pressure within the cylinder varies slightly according to the displacement of the cylinder, but it has been shown that the variation is about 1,2 % of the mean pressure for 100 ml of displacement and about 4 % for a cylinder with
21、 a displacement of 400 ml. Because these variations are within the 5 % limit specified in ISO 5636-1, the apparatus complies with the general requirements detailed in ISO 5636-1 and the air-permeance results may be expressed in micrometres per pascal second m/(Pa?s). BS ISO 5636-5:2003 Licensed Copy
22、: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 08:29:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Paper and board Determination of air permeance and air resistance (medium range) Part 5: Gu
23、rley method 1 Scope This part of ISO 5636 specifies the Gurley method of determining the air permeance of paper and board. It is applicable to papers and boards which have air permeances between 0,1 m/(Pa?s) and 100 m/(Pa?s). It is unsuitable for rough-surfaced materials, which cannot be securely cl
24、amped to avoid leakage. This method may also be used to determine the air resistance of paper and board. 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
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