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BS EN 12255-11
Wastewater treatment plants. General data required
Edition
2023-02-15
BS EN 12255-12
Wastewater treatment plants. Control and automation
Edition
2024-03-15
BS EN 12255-13
Wastewater treatment plants. Chemical treatment. Treatment of wastewater by precipitation/flocculation
Edition
2023-07-31
BS EN 12255-14
Wastewater treatment plants. Disinfection
Edition
2023-07-07
BS EN 12255-15
Wastewater treatment plants - Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants
Edition
2003-12-17
BS EN 12255-16
Wastewater treatment plants. Physical (mechanical) filtration
Edition
2021-08-03
BS EN 12566-1
Small wastewater treatment systems for up to 50 PT. Prefabricated septic tanks
Edition
2016-09-30
BS EN 12566-3
Small wastewater treatment systems for up to 50 PT. Packaged and/or site assembled domestic wastewater treatment plants
Edition
2016-09-30
BS EN 12566-4
Small wastewater treatment systems for up to 50 PT. Septic tanks assembled in situ from prefabricated kits
Edition
2016-09-30
BS EN 12566-6
Small wastewater treatment systems for up to 50 PT. Prefabricated treatment units for septic tank effluent
Edition
2016-09-30
