Packaging - Flexible aluminium tubes - Test method to determine the porosity of the internal coating

This standard specifies a method for the determination of the porosity of the internal coating of aluminium tubes. It is applicable to aluminium tubes which are coated with internal protective lacquers and which are used for packing pharmaceutical, cosmetic, hygiene, food and other household products.The internal coating is used as a barrier and should avoid any contact between aluminium and the product. This standard defines two alternative methods - copper sulphate and sodium chloride method - to detect the electrolyte conductivity as one criterion for the quality of the internal coating.

Verpackung - Aluminiumtuben - Prüfverfahren zur Bestimmung der Porosität der Innenbeschichtung

Emballage - Tubes souples en aluminium - Méthode d'essai pour déterminer la porosité du revetement intérieur

La présente norme est applicable aux tubes en aluminium à revêtement intérieur, principalement utilisés pour emballer des produits pharmaceutiques, cosmétologiques, alimentaires, des produits d’hygiène et autres produits de première nécessité.
Le revêtement intérieur a pour fonction d’empêcher tout contact entre l’aluminium et le produit.
La présente norme définit deux méthodes – la méthode au sulfate de cuivre et la méthode au chlorure de sodium – pour détecter la conductivité de l’électrolyte, qui est un critère de qualité du revêtement intérieur.
NOTE   La conductivité de l’électrolyte du revêtement intérieur n’est qu’un critère d’évaluation de la qualité d’un revêtement intérieur. Elle ne donne aucune information sur la quantité ou la taille d’éventuels pores ou zones non revêtues, ni sur les possibles réactions entre le tube d’aluminium et le produit. Il convient de ne jamais utiliser la conductivité de l’électrolyte comme seul critère d’évaluation de la qualité du revêtement intérieur, mais de toujours l’associer à d’autres paramètres, comme l’épaisseur du film, la résistance à l’acétone et/ou à l’ammoniaque, et, bien sûr, aux résultats des études de stabilité détaillées.

Embalaža - Prožne aluminijaste tube - Preskusne metode za ugotavljanje poroznosti notranjih prevlek

General Information

Status
Withdrawn
Publication Date
03-Dec-2007
Withdrawal Date
06-Aug-2017
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
31-Jul-2017
Due Date
23-Aug-2017
Completion Date
07-Aug-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Embalaža - Prožne aluminijaste tube - Preskusne metode za ugotavljanje poroznosti notranjih prevlekVerpackung - Aluminiumtuben - Prüfverfahren zur Bestimmung der Porosität der InnenbeschichtungEmballage - Tubes souples en aluminium - Méthode d'essai pour déterminer la porosité du revetement intérieurPackaging - Flexible aluminium tubes - Test method to determine the porosity of the internal coating77.150.10Aluminijski izdelkiAluminium products55.120Cans. Tins. TubesICS:Ta slovenski standard je istoveten z:EN 15384:2007SIST EN 15384:2008en,fr,de01-februar-2008SIST EN 15384:2008SLOVENSKI

STANDARD
SIST EN 15384:2008

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15384November 2007ICS 55.120 English VersionPackaging - Flexible aluminium tubes - Test method todetermine the porosity of the internal coatingEmballage - Tubes souples en aluminium - Méthoded'essai pour déterminer la porosité du revêtement intérieurPackmittel - Aluminiumtuben - Prüfverfahren zurBestimmung der Porosität der InnenbeschichtungThis European Standard was approved by CEN on 30 September 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 concerning 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 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36

B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15384:2007: ESIST EN 15384:2008

EN 15384:2007 (E) 2 Contents Page Foreword..............................................................................................................................................................3 1 Scope......................................................................................................................................................4 2 Principle..................................................................................................................................................4 3 Apparatus...............................................................................................................................................4 4 Procedure...............................................................................................................................................5 5 Tolerances..............................................................................................................................................7 6 Test report..............................................................................................................................................8 Bibliography........................................................................................................................................................9

SIST EN 15384:2008

EN 15384:2007 (E) 3 Foreword This document (EN 15384:2007) 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 2008, 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. This standard is based on the professional recommendations of the European Tube Manufacturers Association (etma). According 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 15384:2008

EN 15384:2007 (E) 4 1 Scope This standard is applicable for internally coated aluminium tubes, mainly used for the packing of pharmaceutical, cosmetic, hygiene, food or other household products. The internal coating is used as a barrier and should avoid any contact between aluminium and the product. This standard defines two alternative methods – copper sulphate and sodium chloride method – to detect the electrolyte conductivity as one criterion for the quality of the internal coating. NOTE The electrolyte conductivity of the internal coating is only one criterion for evaluation of the quality of an internal coating. It does not give any information on the quantity or size of any pores or uncoated areas, nor any hint on possible reactions between the aluminium tube and the product. The electrolyte conductivity should never be used as the sole criterion for quality evaluation of the internal coating, but always with other parameters e.g. film thickness, acetone and/or ammonia resistance and of course results of enhanced stability studies. 2 Principle The electrolyte conductivity of internally coated aluminium tubes is tested by an enamel conductometer.

The aluminium tubes are filled with an electrolyte solution up to a fixed level at its open end.

One electrode is connected to the tube nozzle, the second electrode is dipped into the solution.

A defined voltage is applied for a fixed time.

The induced current is a measure for the quality (pores and/or film thickness) of the internal coating. NOTE In the early 80´s the copper sulphate method was developed and standardized (e.g. DIN 55436-3 [1]). Subsequently this metho

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