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NA 119

DIN Standards Committee Water Practice

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Drafts of NA 119

Number: 134

DIN 19294-2 2025-08 Devices for the disinfection of water using ultraviolet radiation - Part 2: Devices equipped with UV medium pressure lamps - Requirements and testing More  Read draft and comment
DIN EN ISO 23611-6 2025-08 Soil quality - Sampling of soil invertebrates - Part 6: Guidance for the design of sampling programmes with soil invertebrates (ISO/DIS 23611-6:2025); German and English version prEN ISO 23611-6:2025 More 
DIN EN 888 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (III) chloride; German and English version prEN 888:2025 More  Read draft and comment
DIN EN 891 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (III) chloride sulfate; German and English version prEN 891:2025 More  Read draft and comment
DIN EN 889 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (II) sulfate; German and English version prEN 889:2025 More  Read draft and comment
DIN EN ISO 5667-15 2025-08 Water quality - Sampling - Part 15: Preservation and handling of samples of sludge, sediment and suspended matter (ISO/DIS 5667-15:2025); German and English version prEN ISO 5667-15:2025 More  Read draft and comment
DIN EN 890 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate solution; German and English version prEN 890:2025 More  Read draft and comment
DIN EN 14664 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate, solid; German and English version prEN 14664:2025 More  Read draft and comment
DIN EN ISO 23697-2 2025-08 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 
DIN EN ISO 23697-1 2025-08 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 

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