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Standards ÖNORM - Austrian standards - Page 2227
In Austria, around 4,000 experts in active committees develop standards for the domestic, European and global market. They represent the interests of the economy, consumers, research, administration and society.
Together with them, Austrian Standards – the Austrian competence centre for standards – finds solutions ensuring that everything fits together perfectly and life runs smoothly. Austrian Standards distributes know-how laid down in standards as quickly as possible so that people and the economy can profit from it.
Austrian Standards, established in 1920, is structured in the business divisions of development, consulting, publishing, training and certification and finances the standardization system by more than 80 per cent through the sale of its products and services. Its legal basis is defined in the Standardization Act (Normengesetz 2016).
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ÖNORM EN 12255-12
WITHDRAWN
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Wastewater treatment plants - Part 12: Control and automation
WITHDRAWN published on 1.12.2003
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ÖNORM EN 12255-13
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Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation
WITHDRAWN published on 1.6.2003
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ÖNORM EN 12255-14
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Wastewater treatment plants - Part 14: Disinfection
WITHDRAWN published on 1.4.2004
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ÖNORM EN 12255-16
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Wastewater treatment plants - Part 16: Physical (mechanical) filtration
WITHDRAWN published on 1.1.2006
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ÖNORM EN 12255-3
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Wastewater treatment plants - Part 3: Preliminary treatment (includes corrigendum AC:2000)
WITHDRAWN published on 1.9.2001
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ÖNORM EN 12255-4
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Wastewater treatment plants - Part 4: Primary settlement
WITHDRAWN published on 1.8.2002
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ÖNORM EN 12255-5
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Wastewater treatment plants - Part 5: Lagooning processes
WITHDRAWN published on 1.3.2000
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ÖNORM EN 12255-6
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Wastewater treatment plants - Part 6: Activated sludge processes
WITHDRAWN published on 1.8.2002
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ÖNORM EN 12255-8
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Wastewater treatment plants - Part 8: Sludge treatment and storage
WITHDRAWN published on 1.12.2001
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ÖNORM EN 12255-9
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Wastewater treatment plants - Part 9: Odour control and ventilation
WITHDRAWN published on 1.8.2002
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