UNE-EN 13555:2005 Flanges and their joints - Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections.
2021UNE-EN 13555:2021 Flanges and their joints - Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections
2014UNE-EN 13555:2014 Flanges and their joints - Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections
2005UNE-EN 13555:2005 Flanges and their joints - Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections.