1、BRITISH STANDARDBS EN 15421:2007Packaging Flexible aluminium tubes Determination of the adhesion of the internal and external protective lacqueringICS 55.120g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55
2、g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15421:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2008 BSI 2008ISBN 978 0 580 56210 5National forewordThis British Standard is the UK implementation of EN 1542
3、1:2007.The UK participation in its preparation was entrusted to Technical Committee PKW/0, Packaging.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are re
4、sponsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15421November 2007ICS 55.120English VersionPackaging - Flexible aluminiu
5、m tubes - Determination of theadhesion of the internal and external protective lacqueringEmballage - Tubes souples en aluminium - Dterminationde ladhrence des vernis de protection intrieure etextrieurePackmittel - Aluminiumtuben - Bestimmung derHaftfestigkeit des Innen- und AuenschutzlackesThis Euro
6、pean Standard was approved by CEN on 7 October 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references conc
7、erning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own
8、language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
9、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All ri
10、ghts of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15421:2007: EEN 15421:2007 (E) 2 Contents Page Foreword. 3 1 Scope . 4 2 Principle. 4 3 Apparatus 4 4 Test conditions . 6 5 Procedure 6 6 Test report. 6 Bibliography . 7 EN 15421:2007 (E) 3 Forew
11、ord This document (EN 15421:2007) has been prepared by Technical Committee CEN/TC 261 “Packaging”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 20
12、08, and conflicting national standards shall be withdrawn at the latest by May 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. A
13、ccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, L
14、atvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 15421:2007 (E) 4 1 Scope This standard specifies a method for the determination of the adhesion of the internal and external protective lacqu
15、er of aluminium tubes. It is applicable to aluminium tubes that are coated with an internal or external protective lacquer and which are used for packing, e.g. pharmaceutical, cosmetic, hygiene, food and other household products. 2 Principle By means of a compressing device the tube is compressed to
16、 a defined extent and under defined temperature conditions to create a standardized and sharp-edged deformation of the tube. The kinks are checked visually for any cracks and/ or delamination of internal or external lacquer. 3 Apparatus Compressing device according to Figure 1 (example). EN 15421:20
17、07 (E) 5 Key 1 Compressing clamp 2 Guide pin (for tubes diameter 19 mm = 8 mm, for tubes diameter 19 mm = 15 mm) 3 Guide bolt 4 Base plate 5 Tube Figure 1 Test device EN 15421:2007 (E) 6 4 Test conditions The tests are carried out at a temperature between (23 5) C. For testing the adhesive strength
18、of inner and outer protective lacquers of products stored or used under cold conditions, (5 + 3) C, the samples have to be stored under the same conditions for at least 2 h prior to testing. The test has to be done immediately after taking the samples out of the refrigerator. 5 Procedure Insert the
19、tube in the compressing device. In order to keep the tube straight during compression an internal guide pin should be used. Compress the tube until the tube body is reduced to (15 5) % of the original tube body length. Remove the crushed tube from the compressing device and stretch it again in the a
20、xial direction. Check the stretched tubes for cracked and detached lacquer parts of the inner and outer protective lacquering. If there are any cracks or detached lacquer parts, the samples have failed. 6 Test report The test report shall contain the following information: a) Reference to this stand
21、ard and if necessary a specification for the method of sampling and acceptance of the batch. b) Complete identification of the batch and of the tubes checked. c) Description and the dimensions of the samples. d) Nature of the internal and external protective lacquering. e) Test temperature. f) Numbe
22、r of samples checked. g) Number and description of defects. h) If necessary, acceptance or refusal of the batch depending on the specifications. i) All factors which could have affected the results or all operating details not specified in this standard. j) Date, place of test and name of tester. EN
23、 15421:2007 (E) 7 Bibliography 1 EN 12374, Packaging - Flexible tubes - Terminology 2 EN 13046, Packaging - Flexible cylindrical metallic tubes - Dimensions and tolerances 3 EN 13047, Packaging - Flexible conical metallic tubes - Dimensions and tolerances BS EN 15421:2007BSI389 Chiswick High RoadLon
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