In the April 2018 issue of Science of The Total Environment the results of the international interlaboratory validation study on the A-YES® test kit will be published. 14 laboratories worldwide participated in the study which demonstrated the good performance of the test kit. The outcome of the study showed, that repeatability and reproducibility of the A-YES® are comparable to chemical methods.The article describes the interlaboratory study trial with 14 participants and 9 samples (including surface, waste and saline water as well as a mixture of three bisphenols). The positive results of the A-YES® are incorporated in the upcoming ISO standard 19040-2.