Olfasense GmbH has officially opened registration for its 2026 Proficiency Test (PT), inviting olfactometric laboratories worldwide to take part. Accredited since 2005, this PT provides laboratories with the opportunity to evaluate their performance in line with the criteria set out in EN 13725:2022, a key standard for laboratories maintaining ISO 17025 accreditation. The annual proficiency test continues to play a key role in confirming that laboratories meet international standards for olfactometric measurements.

   The 2026 PT is again designed to help laboratories verify their compliance with the critical performance criteria of EN 13725:2022, focusing on precision under repeatability conditions and accuracy for 1-butanol. These parameters remain fundamental for assessing the reliability and consistency of olfactometric measurements. Moreover, participants will once more have the option to analyse Tetrahydrothiophen (THT), which will be included if at least eight laboratories register for this additional measurement.