90.60 Close of review Mar 4, 2024
ISO
ISO/TC 8/SC 3 Piping and machinery
International Standard
47.020.30 Piping systems
Published
This document specifies requirements for design, manufacture and test methods of cryogenic ball valves in order to have an excellent quality leakage stability in a very low temperature service (−196 °C to 80 °C).
PUBLISHED
ISO 21157:2018
90.60
Close of review
Mar 4, 2024