This standard specifies dimensions, tolerances, materials, P/T ratings and technical conditions of delivery for steel flanges with bore size DN 650 to DN 1500, Class designated; based on ANSI-B 16.5-1988 + Addenda 1992.
Legislation related to this standard
ABANDON
CEN/TC 74 N 432
30.98
Project deleted
May 27, 1999