IWTO’s Laboratory Licensing

IWTO authorizes licensed laboratories to issue IWTO Certificates, subject to compliance with certain criteria. Laboratories licensed by IWTO are accredited by a recognised national laboratory accreditation body to ISO/IEC 17025 for the Test Methods and Regulations that are issued. IWTO also requires that the national accreditation body conform with ISO/IEC 17011 (Mutual Recognition Agreement).

Below are the Laboratories which have been licensed by IWTO to issue IWTO Test Certificates, and the details of the Test Methods for which each laboratory is licensed.

Laboratories wishing to become licensed by IWTO can consult this document: IWTO Licensed Laboratories Brochure 2021

IWTO Laboratories: