1、August 2009DEUTSCHE NORM English price group 6No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 55.120!$Y=m“1542674www.d
2、in.deDDIN EN 12375Packaging Flexible aluminium tubes Wall thickness determination methodEnglish version of DIN EN 12375:2009-08Packmittel Aluminiumtuben Bestimmung der ManteldickeEnglische Fassung DIN EN 12375:2009-08SupersedesDIN EN 12375:1998-10www.beuth.deDocument comprises 7 pagesNational forewo
3、rd This standard has been prepared by Technical Committee CEN/TC 261 “Packaging” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Verpackungswesen (Packaging Standards Committee), Technical Committee NA 115-02-08 AA Tuben. Amendments This
4、standard differs from DIN EN 12375:1998-10 as follows: a) The accuracy of the micrometer has been changed from 0,01 mm to 0,001 mm. b) Specifications relating to the plastics cylinder have been modified. c) The test procedure has been modified. d) The standard has been editorially revised. Previous
5、editions DIN 55436-1: 1983-08 DIN EN 12375: 1998-10 2 DIN EN 12375:2009-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12375 April 2009 ICS 55.120 Supersedes EN 12375:1998 English Version Packaging Flexible aluminium tubes Wall thickness determination method Emballage Tubes souples en alumi
6、nium Mthode de dtermination de lpaisseur de paroi Packmittel Aluminiumtuben Bestimmung der Manteldicke This European Standard was approved by CEN on 19 March 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standa
7、rd the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards 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,
8、 German). A version in any other language made by translationunder the responsibility of a CEN member into its own 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, Czec
9、h Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPE
10、N DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12375:2009: EEN 12375:2009 (E) 2 Contents Page Foreword . 3 1 Scope . 4 2 N
11、ormative references . 4 3 Principle . 4 4 Apparatus 4 5 Procedure 4 6 Test report . 5 DIN EN 12375:2009-08 EN 12375:2009 (E) 3 Foreword This document (EN 12375:2009) has been prepared by Technical Committee CEN/TC 261 “Packaging”, the secretariat of which is held by AFNOR. This European Standard sha
12、ll be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009. Attention is drawn to the possibility that some of the elements of this doc
13、ument may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12375:1998. It is based on the professional recommendations of the European Tube Manufacturers Association (ETMA). According to the C
14、EN/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, Latvia, Lithuania,
15、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 12375:2009-08 EN 12375:2009 (E) 4 1 Scope This standard specifies a method of determination of the thickness of the tube body material of aluminium tubes.
16、 It is applicable to tubes used for packing pharmaceutical, cosmetic, hygiene, food and other domestic and industrial products. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For
17、undated references, the latest edition of the referenced document (including any amendments) applies. EN 13046, Packaging - Flexible cylindrical metallic tubes - Dimensions and tolerances EN 13047, Packaging - Flexible conical metallic tubes - Dimensions and tolerances 3 Principle The measurement of
18、 the thickness of the tube wall on prepared samples using a micrometer or a comparable measuring appliance. 4 Apparatus 4.1 Measuring device (e.g. a micrometer with one flat and one spherical face) accurate to 0,001 mm 4.2 Scissors 4.3 Plastics cylinder, round and smooth 4.4 Solvent, capable of diss
19、olving any external enamel from the surface of tubes 5 Procedure 5.1 Preparation of samples Using the scissors, cut the tube bodies lengthwise. Then cut the shoulders from the tubes. Dissolve any external enamel from the tube bodies with the solvent (any lacquer film on the inside of the tube is ign
20、ored). When free of all enamel, flatten the tube bodies with a plastic cylinder against a flat hard surface. 5.2 Measurement procedure Measure the wall thickness with the micrometer at a distance of approximately 10 mm from the tube end at three points evenly distributed around the tubes circumferen
21、ce. The value of the thickness shall be established as a mean value from at least three measurement points per sample and indicated with an accuracy of 0.01 mm. DIN EN 12375:2009-08 EN 12375:2009 (E) 5 6 Test report The test report shall contain the following information: a) reference to this standa
22、rd 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) nature of the material; d) test temperature; e) name of the test instrument; f) results of the measurements with indication of the positio
23、n of the points checked and the number of the measurements; g) number of results falling outside the standard specified limits set out in EN 13046 and EN 13047; h) if applicable, acceptance or refusal of the batch depending on the specifications (see a); i) all factors which can have affected the results and which are not specified in this standard; j) date, place of test and name of tester. DIN EN 12375:2009-08
