NA 016
DIN Standards Committee Pressurized Gas Installations
Standards
[Withdrawn]
ISO 11191
ISO 11191
Gas cylinders - 25E taper thread for connection of valves to gas cylinders - Inspection gauges
Title (German)
Gasflaschen - 25E-kegeliges Gewinde zum Anschluß von Ventilen an Gasflaschen - Lehrenprüfung