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OENORM EN 12255-7
Wastewater treatment plants - Part 7: Biological fixed-film reactors
Edition
2023-08-15
OENORM EN 12255-7
Wastewater treatment plants - Part 7: Biological fixed-film reactors
Edition
2002-08-01
OENORM EN 12255-8
Wastewater treatment plants - Part 8: Sludge treatment and storage
Edition
2022-03-15
OENORM EN 12255-8
Wastewater treatment plants - Part 8: Sludge treatment and storage
Edition
2001-12-01
OENORM EN 12255-9
Wastewater treatment plants - Part 9: Odour control and ventilation
Edition
2024-05-01
OENORM EN 12255-10
Wastewater treatment plants - Part 10: Safety principles
Edition
2023-10-01
OENORM EN 12255-11
Wastewater treatment plants - Part 11: General data required
Edition
2023-08-01
OENORM EN 12255-12
Wastewater treatment plants - Part 12: Control and automation
Edition
2022-05-01
OENORM EN 12255-12
Wastewater treatment plants - Part 12: Control and automation
Edition
2003-12-01
OENORM EN 12255-13
Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation
Edition
2024-02-01