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NA 119

DIN Standards Committee Water Practice

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Drafts of NA 119

Number: 132

DIN EN ISO 23696-2 2025-08 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 
DIN EN ISO 23611-1 2025-07 Soil quality - Sampling of soil invertebrates - Part 1: Hand-sorting and extraction of earthworms (ISO/DIS 23611-1:2025); German and English version prEN ISO 23611-1:2025 More 
DIN EN ISO 19388 2025-07 Sludge recovery, recycling, treatment and disposal - Requirements and recommendations for the operation of anaerobic digestion facilities (ISO 19388:2023); German and English version prEN ISO 19388:2025 More 
DIN EN 752/A1 2025-07 Drain and sewer systems outside buildings - Sewer system management; German and English version EN 752:2017/prA1:2025 More 
DIN 19294-4 2025-07 Devices for the disinfection of water using ultraviolet radiation - Part 4: Reference radiometers for devices equipped with UV medium pressure lamps - Requirements and testing More 
DIN 1986-100 2025-06 Drainage systems on private ground - Part 100: Specifications in relation to DIN EN 752 and DIN EN 12056 More 
DIN EN ISO 13647 2025-05 Water quality - Enumeration of culturable microorganisms - Colony count by spread plate inoculation on R2A medium (ISO/DIS 13647:2025); German and English version prEN ISO 13647:2025 More 
DIN EN ISO 22032 2025-05 Water quality - Determination of polybrominated diphenyl ethers (PBDE) in sediment, suspended (particulate) matter and biota - Method using gas chromatography-tandem mass spectrometry or high resolution mass spectrometry (GC-MS/MS; HRMS) (ISO/DIS 22032:2025); German and English version prEN ISO 22032:2025 More 
DIN EN 16150 2025-05 Water quality - Guidance on pro-rata multi-habitat sampling of benthic macroinvertebrates from rivers and streams; German and English version prEN 16150:2025 More 
DIN EN ISO 11350 2025-05 Water quality - Determination of the genotoxicity of water and waste water - Salmonella/microsome fluctuation test (Ames fluctuation test) (ISO 11350:2012); German and English version prEN ISO 11350:2025 More 

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