Proficiency Tests

We carry out and evaluate our proficiency tests (PTs, LVUs) according to "The International Harmonized Protocol for the Proficiency Testing of Analytical Chemistry Laboratories: Pure & Applied Chemistry 78, 145-196 (2006)", taking into account the essential elements of ISO 17043:2023 and ISO 13528:2022.

We aim to offer the most interesting and currently required parameters in the various test items. Through our cooperation with different working groups, suggestions from participants and the composition of the sample material planned for a PT, our portfolio regularly gains new offerings.

Our range of proficiency tests is continuously updated and expanded.

You can download our offer as a PDF file in the form of an application form.

Registrations and cancellations do not require a specific form, but must be made in writing.

The prices listed are net, i.e. excluding value-added tax, and apply to participants within Germany. Participants outside Germany are charged a surcharge for the higher postage and administration costs.

After the samples have been sent, participants have 6 weeks to carry out the examination in their laboratory, and 8 weeks during the holiday period (June to September). Changes to dates will be announced here.