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Projects of CEN/TC 230

Document number Begin Title Comment
DIN EN ISO 13169 2025-11-06 Water quality - Uranium - Test method using alpha liquid scintillation counting More  Comment 
DIN CEN ISO/TS 16099 2025-10-28 Water quality - Polymerase chain reaction (PCR) for the detection and quantification of microorganisms and viruses - General requirements, quality assurance and validation (ISO/TS 16099:2025); German version FprCEN ISO/TS 16099:2026 More  Comment 
DIN EN ISO 5667-1 2025-07-14 Water quality - Sampling - Part 1: Guidance on the design of sampling programmes and sampling techniques (ISO/DIS 5667-1:2025); German and English version prEN ISO 5667-1:2025 More  Comment 
DIN EN ISO 6461-2 rev 2025-06-06 Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration More  Comment 
DIN EN ISO 23696-1 2025-05-23 Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23696-1:2023); German and English version prEN ISO 23696-1:2025 More  Comment 
DIN EN ISO 23697-1 2025-05-23 Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23697-1:2023); German and English version prEN ISO 23697-1:2025 More  Comment 
DIN EN ISO 23697-2 2025-05-23 Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23697-2:2023); German and English version prEN ISO 23697-2:2025 More  Comment 
DIN EN ISO 23696-2 2025-05-22 Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023); German and English version prEN ISO 23696-2:2025 More  Comment 
DIN EN ISO 23695 2025-05-20 Water quality - Determination of ammonium nitrogen in water - Small-scale sealed tube method (ISO 23695:2023); German and English version prEN ISO 23695:2025 More  Comment 
DIN EN ISO 5667-3 rev 2025-05-06 Water quality - Sampling - Part 3: Preservation and handling of water samples More  Comment 

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