Study regarding the Determination of the Flammability Characteristics of the Residue Collected from Natural Gas TransportMaria Prodan, Emilian Ghicioi, Irina Nalboc, Andrei Szollosi-Mota and Sonia SuvarE3S Web Conf., 241 (2021) 04001DOI: https://doi.org/10.1051/e3sconf/202124104001