DIN EN 12255-11
Wastewater treatment plants - Part 11: General data required; English version of DIN EN 12255-11
现行
发布日期 :
2001-07-01
实施日期 :
DIN EN 12255-6
Wastewater treatment plants - Part 6: Activated sludge process; English version of DIN EN 12255-6
现行
发布日期 :
2001-04-01
实施日期 :