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NA 119

DIN Standards Committee Water Practice

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Projects of NA 119

Number: 422

ISO/WD TS 23818-4 2025-09-22 Assessment of conformity of plastics piping systems for the rehabilitation of existing pipelines - Part 4: Thermoplastic composite materials More  Comment 
DIN 19643-2/A1 2025-09-15 Treatment of water of swimming pools and baths - Part 2: Combinations of process with fixed bed filters and precoat filters; Amendment A1 More  Comment 
DIN 19643-3/A1 2025-09-15 Treatment of water of swimming pools and baths - Part 3: Combinations of process with ozonization and chlorination; Amendment A1 More  Comment 
DIN ISO 18400-206 2025-09-11 Soil quality - Sampling - Part 206: Collection, handling and storage of soil under aerobic conditions for the assessment of microbiological processes, biomass and diversity in the laboratory (ISO 18400-206:2018) More  Comment 
ISO/AWI 25967 2025-09-01 Guidelines for collection and biological deodorization of odors during sludge disposal More  Comment 
DIN EN 00230475 2025-09-01 Water quality - Determination of selected per- and polyfluoroalkyl substances in wastewater - Method using liquid chromatography/tandem-mass spectrometry (LC-MS/MS) More  Comment 
DIN EN ISO 23161 rev 2025-08-28 Soil quality - Determination of selected organotin compounds - Gas-chromatographic method More  Comment 
DIN EN ISO 25806 2025-08-27 Water quality - Guidance on field and laboratory procedures for aquatic macroinvertebrate sample preservation for DNA based analyses More  Comment 
DIN EN ISO 25807 2025-08-27 Water quality - Guidance on laboratory procedures mechanical homogenization and DNA extraction of aquatic macroinvertebrate samples More  Comment 
ISO/AWI 23161 2025-08-22 Soil quality - Determination of selected organotin compounds - Gas-chromatographic method More  Comment 

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