2017DIN EN 60947-3:2017 Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units (IEC 60947-3:2008 + A1:2012 + A2:2015); German version EN 60947-3:2009 + A1:2012 + A2:2015
2002LST EN 12573-4-2002 Welded static non-pressurised thermoplastic tanks - Part 4: Design and calculation of flanged joints