NEN EN 12050-4:2015现行
Wastewater Lifting Plants For Buildings And Sites - 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
Defines general requirements, basic construction and testing principles together with information on materials and the relevant assessment and verification of constancy of performance. Pertains to non-return valves used for faecal-free wastewater and wastewater containing faecal matter lifting plants.
I.S. EN 12050-4:2015 - Identical
BS EN 12050-4:2015 - Identical
NBN EN 12050-4:2015 - Identical
SS EN 12050-4 Ed. 2 (2015) - Identical
DIN EN 12050-4 (2015-05) - Identical
NF EN 12050-4:2015 - Identical
ONORM EN 12050-4:2001 - Identical
SN EN 12050-4:2001 - Identical
UNE EN 12050-4:2001 - Identical
NS EN 12050-4 Ed. 1 (2001) - Identical
NS EN 12050-4:2015 - Identical
UNE EN 12050-4:2015 - Identical
ONORM EN 12050-4:2015 - Identical
