NEN EN 12050-4:2001被替代
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
出版：Nederlands Normalisatie Instituut
专家解读视频
This part applies to non-return valves used in conjunction with faecal and faecal-free wastewater lifting plants. This contains general requirements, basic construction and testing principles together with information on materials and conformity evaluation.
SS EN 12050-4 Ed. 1 (2001) - Identical
UNE EN 12050-4:2001 - Identical
NS EN 12050-4 Ed. 1 (2001) - Identical
I.S. EN 12050-4:2000 - Identical
UNI EN 12050-4:2001 - Identical
NBN EN 12050-4:2001 - Identical
NF EN 12050-4:2001 - Identical
ONORM EN 12050-4:2001 - Identical
DIN EN 12050-4 (2001-05) - Identical
BS EN 12050-4:2001 - Identical
SN EN 12050-4:2001 - Identical
BS EN 12050-4:2015 - Identical
SS EN 12050-4 Ed. 2 (2015) - Identical
NBN EN 12050-4:2015 - Identical
