NS 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：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Pertains to non-return valves used in conjunction with faecal and faecal free wastewater lifting plants. Includes general requirements, basic construction and testing principles together with information on materials and conformity evaluation.
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
NEN EN 12050-4:2015 - Identical
ONORM EN 12050-4:2015 - Identical
SN EN 12050-4:2001 - Identical
UNE EN 12050-4:2001 - Identical
UNE EN 12050-4:2015 - Identical
