Catalogue and registration


Kunststoff-Institut Lüdenscheid (Interlaboratory Testing)


Over the past 30 years, the Kunststoff-Institut Lüdenscheid has earned an international reputation as one of the leading institutions in the field of plastics. With more than 15 years of experience in the organisation of interlaboratory comparisons, we are also one of the established providers in this field.

As a clear distinctive feature of our international activities in the field of interlaboratory comparisons, the Kunststoff-Institut Lüdenscheid offers proficiency tests under the brand name “Deutsches Institut für Ringversuche”. We are an ISO/IEC 17043 accredited provider of proficiency testing and have a testing laboratory accredited to DIN EN ISO/IEC 17025. Our accreditations underline our quality claim. The combination of plastics expertise and interlaboratory comparisons is unique on the market.

Our proficiency testing program and our reference materials cover a wide range of tests and analyses. The focus is on different plastic materials, plastic products and plastics processing. A wide range of proficiency testing, from the “classics” of mechanical and thermal testing methods to “exotic” methods such as generative processes or the investigation of the compostability of plastics, are part of our portfolio. You can view our complete offer in our catalogue, which is also an interactive registration form. After registration you will first receive a non-binding offer with comprehensive price information.

Further information on our institute and general explanations on the interlaboratory comparisons can be found under the header item “Our proficiency tests”. If you have any questions or suggestions regarding our proficiency tests, please do not hesitate to contact us.


01 04/19

What happens next?

The registration period ended on 31 March. We are currently contacting those laboratories where a proficiency test cannot be performed (at all or optimally) due to a small number of participants and are discussing possible options. The samples will be...
19 02/19

Countdown is running!

Ladies and gentlemen, dear customers, Have you already compiled your test program? Until 29 March 2019, you have the opportunity to register for yours among the 229 proficiency tests and benchmarkings offered in the spring series. Many of the tests...
14 12/18

New catalogue for reference samples is online

Analogous to the evolution of the new online registration form, now the next step follows. In future, reference samples can be requested via our website. The design of the website is based on the new catalogue for proficiency tests, but...