DIN 4034-1
[Withdrawn] referenced in following documents:
Document number
Edition
Title
DIN 18308
2019-09
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Land drainage and infiltration management works
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DWA-A 221
2019-12
Grundsätze für die Verwendung von Kleinkläranlagen
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