In this second international permeability benchmark, the in-plane permeability values of a carbon fabric were determined by twelve research groups worldwide. One other participant also investigated the deformation of this fabric. The aim of this work was to obtain comparable results in order to make a step toward standardization of permeability measurements of fibrous reinforcements. The procedures used by most participants were according to the guidelines defined for this exercise after the first benchmark. Unidirectional injections in three in-plane directions of the fabric were conducted to determine the unsaturated in-plane permeability tensor. All participants were provided guidelines to the procedure of the experiment to be followed and in addition they were asked to use the same values for parameters such as fiber volume fraction, injection pressure and fluid viscosity to minimize sources of scatter. Unlike benchmark I, results exhibited much less scatter. The scatter between various data obtained  correlated to the  scatter of the setups themselves. A slightly lower correlation  was observed when some parameters differed from the recommended ones. Fil: Vernet, N.. École polytechnique de Montréal; CanadáFil: Ruiz, E.. École polytechnique de Montréal; CanadáFil: Advani, S.. University of Delaware; Estados UnidosFil: Alms, J. B.. University of Delaware; Estados UnidosFil: Aubert, M.. Hexcel Reinforcements; FranciaFil: Barburski, M.. Katholikie Universiteit Leuven; BélgicaFil: Barari, B.. University Of Wisconsin; Estados UnidosFil: Beraud, J. M.. Hexcel Reinforcements; FranciaFil: Berg, D. C.. Technische Universität Clausthal; AlemaniaFil: Correia, N.. Universidade do Porto; PortugalFil: Danzi, M.. Centre of Structure Technologies; SuizaFil: Delavière, T.. École Polytechnique Fédérale de Lausanne; SuizaFil: Dickert, M.. Technische Universität Clausthal; AlemaniaFil: Di Fratta, C.. Centre of Structure Technologies; SuizaFil: Endruweit, A.. University of Nottingham; Reino UnidoFil: Ermanni, P.. Centre of Structure Technologies; SuizaFil: Francucci, Gaston Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Garcia, J. A.. Universitat Politecnica de Valencia; EspañaFil: George, A.. Swerea SICOMP; SueciaFil: Hahn, C.. Technische Universitaet Muenchen; AlemaniaFil: Klunker, F.. Centre of Structure Technologies; SuizaFil: Lomov, S. V.. KU Leuven; BélgicaFil: Long, A.. University of Nottingham; Reino UnidoFil: Louis, B.. Centre of Structure Technologies; SuizaFil: Maldonado, J.. Centre of Structure Technologies; SuizaFil: Meier, R.. Technische Universitaet Muenchen; AlemaniaFil: Michaud, V.. Ecole Polytechnique Federale de Lausanne; SuizaFil: Perrin, H.. Pôle de Plasturgie de l’Est; FranciaFil: Pillai, K.. University Of Wisconsin;; Estados UnidosFil: Rodriguez, Exequiel Santos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Trochu, F.. École polytechnique de Montréal; CanadáFil: Verheyden, S.. Ecole Polytechnique Federale de Lausanne; SuizaFil: Weitgrefe, M.. Airbus Operations GmbH; AlemaniaFil: Xiong, W.. Centre of Structure Technologies; SuizaFil: Zaremba, S.. Technische Universitaet Muenchen; AlemaniaFil: Ziegmann, G.. Technische Universität Clausthal; Alemania