NA 119
DIN Standards Committee Water Practice
Technical rule
[CURRENT]
VDI-MT 6023 Blatt 4
VDI-MT 6023 Blatt 4
Hygiene in drinking-water supply systems - Professional trainings in drinking-water hygiene
Title (German)
Hygiene in Trinkwasser-Installationen - Qualifizierungen für Trinkwasserhygiene