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+90 (332) 251 61 71 info@konaltas.com Tömek Mah. Ankara Cad. No: 354/1, Selçuklu / Konya
A KAMER HOLDING COMPANY TREN
Quality

International standards at every stage of production

Production under an ISO 9001:2015 quality management system and the European standards recommended by ETMA (European Tube Manufacturers Association).

Quality policy

Customer-focused, always improving

Our approach centres on customer satisfaction and continuous improvement. Our quality criteria combine European standards with over 50 years of experience and are continuously monitored in our physical and chemical laboratory.

Quality control staff inspecting tubes

Customer Focus

Delivering products and service that exceed expectations.

Continuous Improvement

Suppliers are evaluated at least twice a year.

International Standards

Compliance with European norms recommended by ETMA.

Employee Development

A strong team through quality-awareness training.

Environmental Care

Sustainable production and recycling.

Certificates

Our certificates

TS EN ISO 9001:2015

Quality management system certificate approved by TSE.

IQNet

International quality management certificate.

Food Contact Certificate

Compliance with hygiene standards for food-contact packaging.

Quality control process

Four-stage control

01

Incoming Inspection

Materials from approved suppliers pass visual and physical tests.

02

Process Control

All lines are checked every 2 hours; retained samples from each line are kept for 2 years.

03

Final Inspection

Visual inspection during boxing; deformed products are removed from the batch.

04

Batch Release

Batch release based on statistical sampling and AQL criteria.

Acceptance criteria (AQL)

Every batch passes statistical release

0.2%Critical defect — product cannot perform its function (e.g. burst tube, missing print)
1.5%Major defect — clear visual defect (e.g. print misregistration, cracked tail)
4.5%Minor defect — slight flaw that does not affect use (e.g. small shade difference)
Laboratory tests

Tests applied to our products

  • Dimensional tests (diameter, length, wall and shoulder thickness)
  • Tube hardness
  • Membrane leak test (closed-nozzle tubes)
  • Internal lacquer film thickness
  • Internal lacquer chemical resistance (acetone, acetic acid, ammonia)
  • Internal and external lacquer mechanical resistance (accordion, shock)
  • Porosity test
  • Internal lacquer uniformity test
  • External lacquer chemical resistance (NaOH)
  • External lacquer adhesion test
  • Chemical and mechanical resistance of the print
  • Cap leak test (open-nozzle tubes)
  • Visual conformity test
Standards

Norms we comply with

TS EN 12374Collapsible tubes — Terminology
TS 4812 / EN 13046Dimensions and tolerances
TS EN 12375Wall thickness determination
TS EN 13048Internal lacquer film thickness measurement
TS EN 15421Internal and external lacquer adhesion
TS EN 15384Internal coating porosity
TS EN 15653Internal coating resistance to ammonia
TS EN 15766Internal coating polymerisation (acetone)
Full details: Tube Handbook (PDF, Turkish)

Need copies of our certificates?

Request