DS EN 1514-6:2004 Flanges And Their Joints - Dimensions Of Gaskets For Pn-Designated Flanges - Part 6: Covered Serrated Metal Gaskets For Use With Steel Flanges Defines the construction, dimensions and marking of covered serrated metal gaskets for use with flanges complying with prEN 1092-1 for PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100 up to and including