1、October 2011 Translation by DIN-Sprachendienst.English price group 7No part of this translation 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
2、 55.120!$ty“1819386www.din.deDDIN EN 15387Packaging Flexible laminate tubes Test methods to assess the strength of the side seamEnglish translation of DIN EN 15387:2011-10Packmittel Laminattuben Prfverfahren zur Beurteilung der Festigkeit der LngsnahtEnglische bersetzung von DIN EN 15387:2011-10Emba
3、llage Tubes souples lamins Mthodes dessai pour dterminer la rsistance de la soudure longitudinaleTraduction anglaise de DIN EN 15387:2011-10www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.909.11DIN EN 15387:2011-10 A comma is used
4、as the decimal marker. National foreword 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), Working Committee NA
5、115-02-08 AA Tuben. 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15387 August 2011 ICS 55.120 English Version Packaging - Flexible laminate tubes - Test methods to assess the strength of the side seam Emballage - Tubes souples lamins - Mthodes dessai pour dterminer la rsistence de la soudu
6、re longitudinale Packmittel - Laminattuben - Prfverfahren zur Be der Festigkeit der Lngsnaht This European Standard was approved by CEN on 1 July 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
7、s 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ger
8、man). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croati
9、a, Cyprus, Czech 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 STANDARDIZA
10、TION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15387:2011: EurteilungEN 15387:2011 (E) 2 Contents Page Fo
11、reword . 3 1 Scope . 4 2 Principle . 4 3 Test equipment for burst test 4 4 Test operation . 5 4.1 Burst test. 5 4.2 Overlap test 6 5 Test report . 7 DIN EN 15387:2011-10EN 15387:2011 (E) 3 Foreword This document (EN 15387:2011) has been prepared by Technical Committee CEN/TC 261 “Packaging”, the sec
12、retariat 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 February 2012, and conflicting national standards shall be withdrawn at the latest by February 2012. Attention i
13、s 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fo
14、llowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Sl
15、ovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15387:2011-10EN 15387:2011 (E) 4 1 Scope This European Standard specifies methods for the assessment of the strength of the side seam of flexible laminate tubes. It is applicable to flexible laminate tubes used for packing p
16、harmaceutical, cosmetic, hygiene, food and other household products. 2 Principle The burst test and the overlap test serve to assess the strength of the side seam. These tests are complementary. The burst test is used to measure whether the tube can withstand a defined air pressure. In addition the
17、overlap test gives information about possible reasons for an insufficient strength of the overlap of the laminate at the side seam. 3 Test equipment for burst test 3.1 Compressed air system. Air compressor with an initial minimum pressure of 2 bar equipped with an air regulator allowing a constant a
18、nd stable pressure. DIN EN 15387:2011-10EN 15387:2011 (E) 5 3.2 Test device. Key 1 Valve 2 Pressure gauge 3 Tube 4 Clamp 5 Adaptor for thread 6 Protective box 7 Compressed air Figure 1 Burst test principle 4 Test operation 4.1 Burst test a) Place the tube in the clamp (side seam centred), close one
19、end of the tube and introduce the air from the other end of the tube. b) For tubes with a diameter less than or equal to 40 mm apply a pressure of 2 bar for 10 s. For tubes with a diameter larger than 40 mm apply a pressure of 1,8 bar for 10 s. DIN EN 15387:2011-10EN 15387:2011 (E) 6 c) The tube sha
20、ll not burst in the overlap area or the side seam during the 10 s that the pressure is applied. If the tube bursts in any other area than the side seam or the overlap or if the tube does not burst at all, it meets the specifications. d) Below 250 m laminate thickness the test shall be subject to a m
21、utual agreement between customer and supplier. 4.2 Overlap test a) An appropriate measure shall be taken to make the inner layer visible. If the inner layer is not visible, samples shall be prepared by using an appropriate contrasting agent. b) Cut a cross-section of the tube approximately 10 mm fro
22、m its open end. 1) If the tube is an ethylene vinyl alcohol (EVOH) barrier laminate, stain the section with a contrasting agent (e.g. iodine solution of 2,5 grams iodine, 2,5 grams potassium iodide, 15 grams distilled water, 80 grams ethanol). This will turn an EVOH barrier layer dark brown or black
23、 within approximately one minute and enable it to be seen easily under the magnifying device. 2) If the tube is an aluminium barrier laminate, no additional sample preparation is required. 3) Other plastic or metal laminates will require careful examination to allow correct measurement of the overla
24、p. c) Under the magnifying device the side seam will show an overlap of aluminium or a black line with polymer flow around the weld. d) Take the reading in mm from the graticule. e) The overlap shall be equal to or larger than 1 mm. f) The overlap test does not apply to laminate tubes where the tube
25、 wall is joined edge to edge. Key 1 external layer 2 adhesive 3 barrier 4 inner layer 5 overlap Figure 2 Tested side seam DIN EN 15387:2011-10EN 15387:2011 (E) 7 If laminate structures without an aluminium or EVOH barrier are used, a suitable test procedure should be mutually agreed upon between cus
26、tomer and supplier. 5 Test report If not otherwise agreed between supplier and customer the test report shall contain the following information: a) reference to this European Standard and if necessary a specification for the method of sampling and acceptance of the batch; b) the complete identificat
27、ion of the batch and of the tubes checked; c) the number of tubes checked; d) the number of defects; e) the test result; f) all factors which could have affected the results or all operating details not specified in this European Standard; g) date, place of test and name of tester. DIN EN 15387:2011-10
