ISO 21922:2021/FDAmd 1

Refrigerating systems and heat pumps — Valves — Requirements, testing and marking — Amendment 1

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

27.080; 27.200

Statut:

Brouillon

Date de Publication:

1969-12-30

Numéro Standard:

ISO 21922:2021/FDAmd 1