DIN 4261-1:1970-10

Отменен

Small-type sewage treatment plants, application, design, construction and operation plants without aeration — 8 стр.

Заменен на

DIN 4261-1:1983-10

ICS

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