NA 119
DIN Standards Committee Water Practice
Standards
[CURRENT]
OENORM B 2531
OENORM B 2531
Specifications for installations inside buildings conveying water for human consumption - National supplements to OENORM EN 806 (all parts)
Title (German)
Technische Regeln für Trinkwasserinstallationen - Nationale Ergänzungen zu OENORM EN 806 (alle Teile)