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NA 119

DIN Standards Committee Water Practice

About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees

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Projects of NA 119

Number: 411

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/FDIS 5667-4 2025-03-14 Water quality - Sampling - Part 4: Guidance on sampling from lakes, natural and man-made 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/WD 24515 2025-03-03 Guidelines for management of microplastics (MPs) in water supply systems More  Comment 

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