30.20 CD study/ballot initiated Mar 20, 2025
ISO
ISO/TC 112 Vacuum technology
International Standard
This document specifies the dimensions of fixed or rotatable bolted knife-edge flanges used in vacuum systems for pressures ranging from atmospheric to as low as 10−11 Pa.
PUBLISHED
ISO 3669:2020
IN_DEVELOPMENT
ISO/CD 3669
30.20
CD study/ballot initiated
Mar 20, 2025