• BS EN 1591-2-2008 Flanges and their joints - Design rules for gasketed circular flange connections Part 2 Gasket parameters.pdf
• BS EN 10055-1996 Hot rolled steel equal flange tees with radiused root and toes. Dimensions and tolerances on shape and dimensions .pdf
• BS EN 13555-2004 Flanges and their joints. Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connecti..pdf