EN 12050-4:2000 Wastewater Lifting Plants for Buildings and Sites - Principles of Construction and Testing - Part 4: Non-Return Valves for Faecal-Free Wastewater and Wastewater Containing Faecal Matter
This part of European standard applies to non-return valves used in conjunction with faecal and faecal-free wastewater lifting plants.This part of the standard contains general requirements ,basic construction and testing principles together with information on materials and conformity evaluation.
EN 12050-4:2000 history
2015EN 12050-4:2015 Wastewater lifting plants for buildings and sites - Part 4: Nonreturn valves for faecal-free wastewater and wastewater containing faecal matter
2000EN 12050-4:2000 Wastewater Lifting Plants for Buildings and Sites - Principles of Construction and Testing - Part 4: Non-Return Valves for Faecal-Free Wastewater and Wastewater Containing Faecal Matter