NA 119
DIN Standards Committee Water Practice
Standards
[Withdrawn]
DIN 19636
DIN 19636
Water softeners for use in drinking water supply installations; requirements and testing (DVGW code of practice)
Title (German)
Enthärtungsanlagen (Kationenaustauscher) in der Trinkwasser-Installation; Anforderungen, Prüfungen; Technische Regel des DVGW