Current stage: 90.60 Close of review Mar 5, 2026
Originator: ISO
Owner: ISO/TC 30 Measurement of fluid flow in closed conduits
Type: International Standard
ICS: 17.120.10 Flow in closed conduits
Status: Published
PDF - €121.00
Languages: English
PUBLISHED ISO 11631:1998 90.60 Close of review Mar 5, 2026