DIN 1997-2:1961-03

Отменен

Shut-off devices in building drainage systems; basic principles for testing — 2 стр.

Заменен на

DIN 1997-2:1984-05

ICS

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