40.20 DIS ballot initiated: 12 weeks Mar 8, 2024
ISO
ISO/TC 8/SC 3 Piping and machinery
International Standard
47.020.30 Piping systems
This document specifies pressure and temperature, design requirements (including structure, materials), test methods and marking for marine pneumatic quick-closing valves.
It is applicable to the design, manufacturing, acceptance and operation of pneumatic quick-closing valves whose nominal sizes are less than DN250.
IN_DEVELOPMENT
ISO/DIS 17579
40.20
DIS ballot initiated: 12 weeks
Mar 8, 2024