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ČSN is a protected designation of Czech national technical standards.
WITHDRAWN published on 1.3.1994
Selected format:Wastewater treatment plants for total number of inhabitants and population equivalents (PT) more than 500
WITHDRAWN published on 1.7.2006
Selected format:Sewage treatment plants for more than 500 of population equivalents
WITHDRAWN published on 1.8.1996
Selected format:Sewage Treatment Plants to 500 of population equivalents
Standard published on 1.9.2017
Selected format:Sewage Treatment Plants to 500 of population equivalents
WITHDRAWN published on 1.2.1998
Selected format:
WITHDRAWN published on 1.5.1992
Selected format:Wastewater treatment plants - Part 1: General design and construction principles
Standard published on 1.4.2025
Selected format:Wastewater treatment plants - Part 3: Preliminary treatment
Standard published on 1.12.2024
Selected format:Wastewater treatment plants - Part 4: Primary settlement
Standard published on 1.10.2023
Selected format:Wastewater treatment plants - Part 5: Lagooning processes
Standard published on 1.6.2024
Selected format:Latest update: 2026-05-21 (Number of items: 2 278 996)
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