Who We Are

Founded in 2005, ILT – Interlaboratory Test specializes in the organization and management of proficiency testing programs by interlaboratory comparison. Our team of experienced professionals has been supporting testing and calibration laboratories worldwide for nearly two decades.

Why profeciency Testing

Participation in proficiency testing is often required by accreditation bodies and, in some cases, mandated by current regulations. These programs are conducted in accordance with ISO/IEC 17043: Proficiency Testing by Interlaboratory Comparison, the international standard that ensures the validity, comparability, and reliability of results.

At ILT, we provide laboratories with a fundamental tool to demonstrate their technical competence, strengthen their quality systems, and support the process of obtaining or maintaining accreditation under ISO/IEC 17025.

Our Commitment

Our commitment is to deliver programs that are transparent, reliable, and aligned with international standards—helping laboratories ensure confidence in their results and recognition in the global marketp

ISO/IEC 17043 Accreditation

At ILT – Interlaboratory Test, we hold accreditation granted by the National Accreditation Center (NAC) under the international standard ISO/IEC 17043:2023, with accreditation code NAC-005-PT.

This accreditation endorses the quality and reliability of our proficiency testing programs, ensuring they are carried out in accordance with the highest international standards.

ILT Interlaboratory Test | Proficiency Testing provider ISO 17043 Acredited
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Scope of Accreditation