Certifications & Quality Assurance
Below you can access the certifications awarded to our laboratory, alongside our performance records in global interlaboratory proficiency tests.
We actively participate in the international interlaboratory proficiency testing schemes organised by BIPEA (France). BIPEA is one of the world's leading bodies in laboratory performance evaluation, bringing together over 2,500 laboratories from 120 countries.
During each proficiency test, we receive blind samples with unknown amino acid profiles. Our objective is to perform accurate quantitative determinations for all target amino acids.
For each individual amino acid, performance is graded based on strict statistical parameters:● satisfactory — the result is correct and within the internationally accepted deviation limits.● questionable — the result is within an acceptable boundary but exhibits a deviation slightly larger than standard.● unsatisfactory — the result is outside acceptable limits.● not assessed — this specific parameter was not measured in the round.
In September 2026, we took part in the BIPEA interlaboratory comparison (programme PT 26A “Amino acids – feed”, casein sample) and obtained a “Satisfactory” result for all 20 assessed parameters. The certificate of participation dated 19 October 2026 and the results are shown below.
Why these results confirm the laboratory’s accuracy: the sample was unknown to us, and the result for each parameter was compared with the value assigned by the independent organiser (BIPEA). All 20 assessed parameters fall within |z| ≤ 2, including 17 within |z| ≤ 1; the largest deviation is |z| = 1.75 (cystine). Results of earlier comparisons (2019–2020 and 2024) are on a separate page: Previous proficiency test results.