DIN 4261-1:1983-10

Отменен

Small sewage treatment plants; plants without sewage aeration; application, design and construction — 11 стр.

Заменен на

DIN 4261-1:1991-02

ICS

13.060.30 Sewage. Including sewage water disposal and treatment / Сточные воды. Включая удаление и очистку сточных вод