• BS EN 1591-2-2008 Flanges and their joints - Design rules for gasketed circular flange connections Part 2 Gasket parameters.pdf
• JIS B2003-1994 General rules for inspection of valves.pdf
• JIS B2004-1994 General rules for marking on valves.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