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NA 119

DIN Standards Committee Water Practice

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Projects of NA 119

Number: 445

DIN EN 13598-2 2025-03-31 Plastics piping systems for non-pressure underground drains and sewers - Unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 2: Specifications for manholes and inspection chambers; German and English version prEN 13598-2:2025 More  Comment 
DIN EN ISO 5663 rev 2025-03-28 Water quality - Determination of Kjeldahl nitrogen - Method after mineralization with selenium More  Comment 
DIN EN 18268 2025-03-17 Chemicals used for treatment of water intended for human consumption - Antiscalants for membranes - Citric Acid; German and English version prEN 18268:2025 More  Comment 
ISO/DIS 5667-3 2025-03-14 Water quality - Sampling - Part 3: Preservation and handling of water samples More  Comment 
ISO/DIS 5667-1 2025-03-14 Water quality - Sampling - Part 1: Guidance on the design of sampling programmes and sampling techniques More  Comment 
ISO/AWI 5663 2025-03-14 Water quality - Determination of Kjeldahl nitrogen - Method after mineralization with a metal catalyst More  Comment 
ISO/AWI 21685 2025-03-11 Water quality - Method for detection of Norovirus in water using RT-nested PCR More  Comment 
ISO/DIS 25652 2025-03-11 Sediment, Soil, sludge and waste - Analysis of PFAS by HPLC and mass spectrometry More  Comment 
DIN EN 752/A1 2025-03-03 Drain and sewer systems outside buildings - Sewer system management; German and English version EN 752:2017/prA1:2025 More  Comment 
ISO/CD 24515 2025-03-03 Guidelines for management of microplastics (MPs) in water supply systems More  Comment 

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