NA 119
DIN Standards Committee Water Practice
Standards
[Withdrawn]
DIN 1988-5
DIN 1988-5
Drinking water supply systems; pressure boosting and reduction (DVGW code of practice)
Title (German)
Technische Regeln für Trinkwasser-Installationen (TRWI); Druckerhöhung und Druckminderung; Technische Regel des DVGW