Holliger, ChristofAstals, Sergide Laclos, Helene FruteauHafner, Sasha D.Koch, KonradWeinrich, Soeren2021-03-262021-03-262021-03-262021-01-0110.2166/wst.2020.569https://infoscience.epfl.ch/handle/20.500.14299/176664WOS:000609910400020Inter-laboratory reproducibility of biomethane potential (BMP) is dismal, with differences in BMP values for the same sample exceeding a factor of two in some cases. A large group of BMP researchers directly addressed this problem during a workshop held in Leysin, Switzerland, in June 2015. The workshop resulted in a new set of guidelines for BMP tests published in 2016, which is the subject of the present commentary. The work has continued with two international inter-laboratory studies and one additional workshop held in Freising, Germany, in 2018. The dataset generated by the two inter-laboratory studies were used to refine the validation criteria for BMP tests. Based on these new results an update to the original guidelines is proposed here.Engineering, EnvironmentalEnvironmental SciencesWater ResourcesEngineeringEnvironmental Sciences & Ecologyanaerobic digestionbmpbiochemical methane potentialbiogas technologyguidelinevalidation criteriatext::journal::journal article::research article