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1、BRITISH STANDARD BS EN 13676:2001 Polymer coated paper and board intended for food contact Detection of pinholes The European Standard EN 13676:2001 has the status of a British Standard. ICS 55.040; 67.250 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffiel
2、dun sheffieldun, na, Mon Oct 30 01:53:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13676:2001 This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Committee, was published under the authority of the Standards Committee and comes into eff
3、ect on 15 June 2001 BSI 06-2001 ISBN 0 580 37329 0 National foreword This British Standard is the official English language version of EN 13676:2001. The UK participation in its preparation was entrusted by Technical Committee CW/47, Materials in contact with food, to Subcommittee CW/47/3, Paper and
4、 board in contact with foodstuffs, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be
5、found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Stand
6、ards are responsible for their 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 European committee any enquiries on the interpretation, or proposals for change, and keep
7、 the 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 EN title page, pages 2 to 5 and a back cover. The BSI copyright date displayed in this document indica
8、tes when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:53:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13676 April 2001 ICS 55.040; 67.250 English
9、 version Polymer coated paper and board intended for food contact - Detection of pinholes Papiers et cartons enduits de polymres destins entrer en contact avec les denres alimentaires - Dtection des trous dpingle Kunststoff beschichtetes Papier und Pappe vorgesehen fr den Kontakt mit Lebensmitteln -
10、 Auffinden von Nadellchern This European Standard was approved by CEN on 19 February 2001. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date l
11、ists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the respo
12、nsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Nethe
13、rlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserve
14、d worldwide for CEN national Members. Ref. No. EN 13676:2001 E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:53:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 13676:2001 Contents Page Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15、. . . . . . . . . . . . . . . . . . . . . . . . 3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . . . . . . .4 2Normative References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 3Terms and definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 3.1pinho
17、le . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 4Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 5Reagents . . . . . . . .
18、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 5.1Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 5.2Dyestuff E 131 Blue . . . . . . . . . . . . .
19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 5.3Colour solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 6Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 6.1General laboratory equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 6.2Appropriate apparatus for one-side testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、. . . . . .4 7Sampling and preparation of sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 8Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 9Interpretation . . . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 10Test report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct
23、30 01:53:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 13676 : 2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 172 “Pulp, paper and board“, the Secretariat of which is held by DIN. This European Standard shall be given the status of a national standard,
24、 either by publication of an identical text or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bo
25、und to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:53:40
26、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 13676:2001 Introduction Paper and board is sometimes provided with a polymer layer in order to give it barrier properties. The barrier properties of these converted materials are influenced by the presence of intentional or unintentional small ho
27、les in the polymer layer, so called pinholes. Pinholes can make it inappropriate to use certain protocols, e.g. those involving liquid food simulants, to test converted paper and board intended for food contact for migration in order to assess compliance with laws or regulations. 1 Scope This Europe
28、an Standard specifies a procedure for the detection and estimation of pinholes in polymeric layers on paper and board. It is applicable to all kinds of polymeric coated paper and board. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other pu
29、blications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revi
30、sion. For undated references the latest edition of the publication referred to applies (including amendments). ENV 1186-1 Materials and articles in contact with foodstuffs Plastics Part 1: Guide to the selection of conditions and test methods for overall migration EN 20535 Paper and board Determinat
31、ion of water absorptiveness Cobb method (ISO 535 : 1991) EN ISO 186 Paper and board Sampling to determine average quality (ISO 186 : 1994) 3 Terms and definitions For the purpose of this Standard, the following terms and definitions apply: 3.1 pinhole intentional or unintentional small hole or openi
32、ng large enough to permit the transfer of a penetrant under the conditions of this test. 4 Principle The sample is brought into one-side contact with a colouring solution for a specified time. The surplus solution is removed and any coloured spots (pinholes) are counted. The result is expressed as n
33、umber of pinholes per square decimetre of paper or board. 5 Reagents 5.1 Ethanol, (C2H5OH, 96% (v/v), suitable for analytical work. 5.2 Dyestuff E131 Blue (Chemical Abstract Service No (CAS) 3536-49-0) or Crossing Scarlet MOO (CAS 5413-75-2) 5.3 Colour solution, 0,5% (w/v) of dyestuff in ethanol. Di
34、ssolve 0,5 g of dyestuff (5.2) in 100 ml ethanol (5.1). NOTE Some commercial samples of the dyestuff could contain insoluble pins. In this case, it is recommended to filter the solution before use. 6 Apparatus 6.1 General laboratory equipment. 6.2 Appropriate apparatus for one-side testing, for exam
35、ple the apparatus described in EN 20535. A cell for one-sided migration test as shown in ENV 1186-1 may also be used. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:53:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 13676 : 2001 7 Sampling and preparation of sample If the result o
36、f the test is intended to reflect the quality of a lot of paper, follow the sampling procedure specified in EN ISO 186. At least, five specimens for example, each of about 12 cm x 12 cm or depending on the size of the testing equipment shall be available for the test. Do not humidity-condition the s
37、amples, unless otherwise agreed. 8 Procedure Carry out five parallel determinations at room temperature. Place the specimen in the apparatus (see 6.2) with the side to be tested uppermost. Apply a suitable amount covering completely the surface of the colour solution (see 5.3) onto the specimen. Aft
38、er 5 min pour off the colour solution and remove the sample from the apparatus. Wipe off the surface with some tissue paper or a sheet of unprinted kitchen roll. Examine the exposed surface of paper. Record the stained spots (pinholes). NOTE Due to the nature of this determination with different sta
39、tistical spreads for different materials and situations, it is not appropriate to perform statistic calculations in this method. 9 Interpretation Count the number of pinholes in the sample per square decimetre and express the average result as num- ber/dm. 10 Test report The test report shall refer
40、to this European Standard and state: a) type, origin and designation of the sample; b) date and place of sampling (if available); c) date and place of testing; d) the area of the test piece; e) result of the test; f) any deviation from this standardized procedure that may have affected the result. L
41、icensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:53:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13676:2001 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 v
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