BS EN 12050-4:2015

Действует

Wastewater lifting plants for buildings and sites. Non-return valves for faecal-free wastewater and wastewater containing faecal matter — 34 стр.

ICS

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

91.140.80 Drainage systems / Дренажные системы