Gasket Standard

B16.20 offers comprehensive solutions applying to materials, dimensions, tolerances and marking.
It addresses gaskets that are dimensionally suitable for use with flanges described in reference flange standards
ASME B16.5, ASME B16.47, API Specification 6A
and ISO 10423 as well as with other ASME standards,
such as the Boiler and Pressure Vessel Code and the B31 Piping Codes.
Notable revisions to the 2017 edition
include a complete reorganization based on the different types of gaskets.