EN 12377-2014 en Packaging - Flexible tubes - Test method for the air tightness of closures《包装材料 软管 封装气密性试验方法》.pdf

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1、BSI Standards PublicationBS EN 12377:2014Packaging Flexible tubes Test method for the airtightness of closuresBS EN 12377:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12377:2014. Itsupersedes BS EN 12377:1999 which is withdrawn.The UK participation in it

2、s preparation was entrusted to TechnicalCommittee PKW/0/-/10, Packaging - Plastics.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its co

3、rrectapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 81512 6ICS 55.120Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy

4、Committee on 30 November 2014.Amendments issued since publicationDate Text affectedBS EN 12377:2014EUROPEAN 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 Emb

5、allage - Tubes souples - Mthode dessai de dtermination de ltanchit lair des bouchons 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 Int

6、ernal Regulations which stipulate the conditions for giving this European Standard 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 an

7、y CEN member. This European Standard exists in three official versions (English, 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 v

8、ersions. CEN members are the national standards bodies of 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, Norwa

9、y, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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 exploi

10、tation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12377:2014 EBS EN 12377:2014EN 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 BS EN 12377:2014EN 12377:2014 (E) 3 Foreword This

11、 document (EN 12377:2014) 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 April 2015, an

12、d conflicting national standards shall be withdrawn at the latest by April 2015. 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. This

13、document supersedes EN 12377:1998. The main significant changes are: precision is given on 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 nation

14、al standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu

15、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12377:2014EN 12377:2014 (E) 4 1 Scope This European Standard specifies a test method for airtightness of the closures for flexible tubes. It i

16、s applicable to flexible single-layer metal or plastics tubes and multilayer or laminated 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 s

17、ubjected to an internal air pressure of 0,25 bar. 3 Apparatus 3.1 Air compressor with 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 t

18、he tube, which allows the attachment of the open end of the tube to the compressed air 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

19、 of between 10 C and 25 C. Attach the open end of the tube to the compressed air source 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 im

20、mersed for at least 3 s. During the test period some bubbles might occur shortly after 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

21、-viscosity products air tightness of 0,25 bar does not guarantee no leakage of the product. 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 an

22、d if necessary a specification for the method of sampling and the acceptance of the batch; b) complete identification of the batch and of the tubes tested; c) number of tubes tested; BS EN 12377:2014EN 12377:2014 (E) 5 d) number of defects; e) if applicable, acceptance or refusal of the batch in acc

23、ordance with specifications (see a); f) all factors which could have affected the 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 tra

24、nsparent glass container 7 air bubbles Figure 1 Diagram of the test device BS EN 12377:2014EN 12377:2014 (E) 6 Bibliography EN 12374, Packaging - Flexible tubes - Terminology This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-rel

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