1、January 2015 Translation by DIN-Sprachendienst.English price group 6No 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!%?DX“2283353www.din.deDDIN EN 12377Packaging Flexible tubes Test method for the air tightness of closures;English version EN 12377:2014,English translation of DIN EN 12377:2015-01Packmittel Tuben Prfverfahren zur Bestimmung der Luftdichtheit der Verschlsse;Englische Fassung EN 12377:2014,Eng
3、lische bersetzung von DIN EN 12377:2015-01Emballage Tubes souples Mthode dessai de dtermination de ltanchit lair des bouchons dobturation;Version anglaise EN 12377:2014,Traduction anglaise de DIN EN 12377:2015-01SupersedesDIN EN 12377:1998-11www.beuth.deDocument comprises 8 pagesIn case of doubt, th
4、e German-language original shall be considered authoritative.12.14DIN EN 12377:2015-01 2 A comma is used as the decimal marker. National foreword This document (EN 12377:2014) has been prepared by Technical Committee CEN/TC 261 “Packaging” (Secretariat: AFNOR, France). The responsible German body in
5、volved in its preparation was the DIN-Normenausschuss Verpackungswesen (DIN Standards Committee Packaging), Working Committee NA 115-02-08 AA Tuben. Conversion: Non-SI unit SI unit Conversion bar Pa 1 bar = 100 000 Pa Amendments This standard differs from DIN EN 12377:1998-11 as follows: a) Clause 2
6、 “Definitions” has been deleted; b) a detailed description has been included on how to conduct the test following the immersion of the tube in water; c) a Note has been added concerning products of low-viscosity; d) the standard has been editorially revised. Previous editions DIN 55435-1: 1983-08 DI
7、N EN 12377: 1998-11 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12377 October 2014 ICS 55.120 Supersedes EN 12377:1998English Version Packaging - Flexible tubes - Test method for the air tightness of closures Emballage - Tubes souples - Mthode dessai de dtermination de ltanchit lair des bou
8、chons dobturation Packmittel - Tuben - Prfverfahren zur Bestimmung der Luftdichtheit der Verschlsse This European Standard was approved by CEN on 27 September 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stand
9、ard 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English
10、, French, German). 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, Bul
11、garia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, T
12、urkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members
13、. Ref. No. EN 12377:2014 EEN 12377:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Principle 4 3 Apparatus .4 4 Procedure .4 5 Test report 4 Bibliography 6 DIN EN 12377:2015-01 EN 12377:2014 (E) 3 Foreword This document (EN 12377:2014) has been prepared by Technical Committee CEN/TC 261 “Packaging”,
14、 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 April 2015, and conflicting national standards shall be withdrawn at the latest by April 2015. Attention
15、 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. This document supersedes EN 12377:1998. The main significant changes are: precision is given on
16、 how to conduct the test following the immersion of the tube in water has been included; a Note is also added related to the low-viscosity products. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European
17、 Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sloveni
18、a, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12377:2015-01 EN 12377:2014 (E) 4 1 Scope This European Standard specifies a test method for airtightness of the closures for flexible tubes. It is applicable to flexible single-layer metal or plastics tubes and multilayer or lamin
19、ated tubes used for packing pharmaceutical, cosmetic, hygiene, food and other domestic and industrial products. 2 Principle The detection of air bubbles escaping from the cap, when the tube is held under water and subjected to an internal air pressure of 0,25 bar. 3 Apparatus 3.1 Air compressor with
20、 an initial minimum pressure of 2 bar, equipped with an air regulator allowing a constant and stable pressure of 0,25 0,01 bar. 3.2 Manometer accurate to 0,01 bar. 3.3 Conical connector, adapted to the diameter of the tube, which allows the attachment of the open end of the tube to the compressed ai
21、r source without leaks. 3.4 Transparent glass container of a size such as to allow the head of the tube to be immersed in water. 4 Procedure The test shall be carried out on the capped tube at an ambient temperature of between 10 C and 25 C. Attach the open end of the tube to the compressed air sour
22、ce with the conical connector (see Figure 1). Set the air regulator so as to maintain an air pressure of (0,25 0,01) bar inside the tube. Immerse the head of the tube in the water ensuring that the cap is totally immersed for at least 3 s. During the test period some bubbles might occur shortly afte
23、r immersing the tube into the water due to air which is present under the closure before immersing the tube. After a test period of 3 s without bubbles, the tube closure is considered to be tight. NOTE: For some low-viscosity products air tightness of 0,25 bar does not guarantee no leakage of the pr
24、oduct. The filler has to assure that the tolerances laid down in this standard are appropriate for the product. 5 Test report The test report shall contain the following information: a) reference to this standard and if necessary a specification for the method of sampling and the acceptance of the b
25、atch; b) complete identification of the batch and of the tubes tested; c) number of tubes tested; DIN EN 12377:2015-01 EN 12377:2014 (E) 5 d) number of defects; e) if applicable, acceptance or refusal of the batch in accordance with specifications (see a); f) all factors which could have affected th
26、e results, or all operating details not specified in this European Standard; g) date of test; h) name of the tester. Key 1 compressed air line infeed 2 manometer gauge 3 conical applicator 4 tube under test 5 water 6 transparent glass container 7 air bubbles Figure 1 Diagram of the test device DIN EN 12377:2015-01 EN 12377:2014 (E) 6 Bibliography EN 12374, Packaging - Flexible tubes - Terminology DIN EN 12377:2015-01
