Quality management and accreditation at DIK Prüfgesellschaft mbH

The aim of the DIK`s quality policy is to guarantee the customer satisfaction concerning requested and executed services.

Our quality management system intends to guarantee the quality of test results in order to sustain the customer confidence in our work at DIK Prüfgesellschaft mbH.

The DIK Prüfgesellschaft mbH is accredited according to DIN EN ISO/IEC 17025:2005 for mechanical and chemical tests of rubber and various kinds of polymer materials and for the determination of N-nitrosamines in air and polymer samples.

The accreditation was carried out by Germany`s National Accreditation Body (Deutsche Akkreditierungsstelle GmbH, DAkkS). The current accreditation certificate is valid until 2019. A list with all accredited test methods can be seen from the attachment of the accreditation certificate.

Quality management:

Dr. Kelim Vano Herrera

Phone: +49 511 84201-42



Status of the accreditation of DIK Prüfgesellschaft mbH according to DIN EN ISO/IEC 17025
The DIK Prüfgesellschaft mbH is accredited according to DIN EN ISO/IEC 17025 until 5th of November 2019 as per the accreditation certificate D-PL-21095-01-00 of Deutsche Akkreditierungsstelle GmbH.

The accreditation is valid for the test methods listed in the appendix.

Overview of accredited tests

Mechanical tests

Testing on rubber compounds (not vulcanized):

  • Viscosity, Mooney (DIN, ISO)
  • Mooney-Scorch behavior of compounds (DIN, ISO)
  • Vulcanization characteristics (DIN, ISO)



Testing on elastomers:

  • Hardness (Shore-A, IRHD)
  • Compression Set (DIN-ISO, VDA)
  • Relaxation and Creep (VDA)
  • Rebound Resilience (DIN, ISO)
  • Tensile Strength, Ultimate Elongation, Stress at various Elongations (DIN, ISO, VDA)
  • Tear Strength, "trousers" (DIN-ISO)
  • Abrasion (DIN, DIN-ISO, VDA)
  • Accelarated Ageing (DIN, ISO)
  • Ozone Resistance (DIN, ISO, VDA)
  • Density (DIN-ISO, VDA)

Chemical tests

Testing of polymer materials from the pharmaceutical and food sector:

  • Extraction/Migration in different kinds of media
  • Sample preparation by liquid-liquid extraction and solid phase extraction
  • HPLC-UV screening analysis of extracts
  • Qualitative GC-MS analysis for identification of extract components
  • Peak identification and semi-quantification by HPLC-UV analysis
  • Semi-quantification with internal standards by GC-MS analysis
  • Determination of the non-volatile residue
  • FT-IR analysis of extract residues

    Hazardous substance testing of elastomers and material samples:

    • Extraction with methanol
    • GC-TEA analysis of the extracts for N-nitrosamines
    • Determination of N-nitrosamines and nitrosable compounds after migration in saliva test solution

    Testing of air samples:

    • GC-TEA analysis for N-nitrosamines

    Elastomer and damage analysis:

    • FT-IR and ATR-FT-IR analysis for identification of polymers and ingredients of elastomers and rubber compounds
    • TGA for determination of the composition of elastomers and rubber compounds
    • DSC for determination of thermodynamic properties
    • Qualitative GC-MS analysis of polymer, rubber and elastomer extracts