SIST EN 15385:2008

Packaging - Flexible laminate tubes - Test methods to determine the strength of the head welding

This European Standard specifies a method for the determination of the strength of the head welding of flexible laminate tubes.
It is applicable to flexible laminate tubes used for packing pharmaceutical, cosmetic, hygiene, food and other household products.

Packmittel - Laminattuben - Prüfverfahren zur Bestimmung der Festigkeit der Kopfnaht

Emballage - Tubes souples laminés - Méthodes d'essai pour déterminer la résistance de la soudure de la tete

Embalaža - Prožne laminatne tube - Preskusne metode za ugotavljanje trdnosti zvarov

General Information

• Status: Published
• Publication Date: 05-Dec-2007
• ICS: 55.120 - Cans. Tins. Tubes
• Technical Committee: EPO - Packaging - sales and grouped
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Nov-2007
• Due Date: 03-Feb-2008
• Completion Date: 06-Dec-2007
• Ref Project: EN 15385:2007 - Packaging - Flexible laminate tubes - Test methods to determine the strength of the head welding

Overview

SIST EN 15385:2008 is a European Standard developed by CEN that specifies test methods to determine the strength of the head welding of flexible laminate tubes. These tubes are widely used in packaging applications for pharmaceutical, cosmetic, hygiene, food, and household products. The standard ensures the reliability and durability of welds at the tube head, which is critical for maintaining product integrity and consumer safety.

This standard is applicable across the packaging industry where flexible laminate tubes are employed, providing a uniform method to verify welding strength and avoid premature failure during use or transport.

Key Topics

• Scope and Application
  SIST EN 15385:2008 applies specifically to flexible laminate tubes containing various consumer products. It addresses the mechanical strength of the weld between the tube body and the shoulder (head welding).

• Test Principle
  The test evaluates whether the body laminate deforms before detaching from the shoulder under tensile stress. A tensile/compression tester is used to exert force on cut strips of the tube to measure weld integrity.

• Test Equipment
  The test requires:

  • A cutting device to prepare four equal-width strips from the tube’s circumference, including a strip with the side seam centrally located.
  • A tensile strength tester capable of applying controlled force and measuring deformation at a speed of 130 mm/min.

• Test Procedure

  1. Cut four strips each equal to one-quarter of the tube circumference.
  2. Pull two opposing strips simultaneously, attempting to detach material from the shoulder.
  3. Measure if the laminate stretches or deforms rather than detaching below a minimal threshold of 3 N/mm strip width.
  4. Repeat for the second opposing pair.

• Test Reporting
  A comprehensive report includes the batch identification, number of tubes and defects, test results, any deviations or special conditions, as well as test date, location, and tester’s name.

Applications

SIST EN 15385:2008 is essential for manufacturers, quality control laboratories, and suppliers involved in the production and testing of flexible laminate tubes employed in sectors such as:

• Pharmaceutical Packaging
  Ensures tubes reliably protect sensitive medicines without weld failures that could compromise sterility.

• Cosmetic and Personal Care Products
  Guarantees durability under handling conditions to avoid product leakage and maintain aesthetic quality.

• Food Packaging
  Maintains hermetic seal integrity to extend shelf life and prevent contamination.

• Household and Hygiene Products
  Provides confidence in product containment, preserving function and customer satisfaction.

By following EN 15385 testing methods, stakeholders can meet regulatory demands and enhance product safety and performance.

Related Standards

To complement SIST EN 15385:2008, these related European standards are often referenced:

• EN 12374 – Packaging - Flexible tubes - Terminology
  Establishes consistent definitions relevant to flexible tube packaging.

• EN 13461 – Packaging - Cylindrical flexible laminated tubes - Dimensions and tolerances
  Specifies the dimensional requirements ensuring tubes meet necessary physical criteria.

Together with EN 15385, these standards create a framework for the production and testing of flexible laminate tubes, supporting quality assurance and regulatory compliance in the packaging industry.

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Keywords: EN 15385, flexible laminate tubes, head welding strength, packaging test methods, tensile strength test, laminate tube packaging, pharmaceutical packaging, cosmetic tube standards, packaging durability, CEN standards, European packaging standards.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Packaging - Flexible laminate tubes - Test methods to determine the strength of the head weldingEmbalaža - Prožne laminatne tube - Preskusne metode za ugotavljanje trdnosti zvarovEmballage - Tubes souples laminés - Méthodes d'essai pour déterminer la résistance de la soudure de la tetePackmittel - Laminattuben - Prüfverfahren zur Bestimmung der Festigkeit der KopfnahtTa slovenski standard je istoveten z:EN 15385:2007SIST EN 15385:2008en55.120ICS:SLOVENSKI
STANDARDSIST EN 15385:200801-februar-2008

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15385August 2007ICS 55.120 English VersionPackaging - Flexible laminate tubes - Test methods to determinethe strength of the head weldingEmballage - Tubes souples laminés - Méthodes d'essaipour déterminer la résistance de la soudure de la têtePackmittel - Laminattuben - Prüfverfahren zur Bestimmungder Festigkeit der KopfnahtThis European Standard was approved by CEN on 13 July 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 15385:2007: E
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