NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Technical rule
[CURRENT]
VDMA 24020-1
VDMA 24020-1
Operational requirements for refrigerating systems - Part 1: Ammonia refrigerating systems (with CD-ROM)
Title (German)
Betriebliche Anforderungen an Kälteanlagen - Teil 1: Ammoniak-Kälteanlagen (mit CD-ROM)