DIN 4261-2:1984-06

Отменен

Small sewage treatment plants; plants with sewage aeration; application, design, construction and testing — 8 стр.

Заменен на

DIN EN 12566-1:2004-05

ICS

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