ASME-B16.21 › Complete Document History
Nonmetallic Flat Gaskets for Pipe Flanges

Complete Current Edition:
   2021 EDITION - Nonmetallic Flat Gaskets for Pipe Flanges - Jan. 1, 2022

Obsolete Revision Information:
   2016 EDITION - Nonmetallic Flat Gaskets for Pipe Flanges - Dec. 5, 2016
   2011 EDITION - Nonmetallic Flat Gaskets for Pipe Flanges - Feb. 23, 2011
   2005 EDITION - Nonmetallic Flat Gaskets for Pipe Flanges - Jan. 1, 2005