Estimating the uncertainty of the liquid mass flow using the orifice plate Anna Golijanek-Jędrzejczyk, Dariusz Świsulski, Robert Hanus, Marcin Zych and Petryka Leszek EPJ Web Conf., 143 (2017) 02030 Published online: 12 May 2017 DOI: 10.1051/epjconf/201714302030