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NA 119

DIN Standards Committee Water Practice

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Projects of NA 119

Number: 422

ISO/CD 25502 2025-04-10 Mobile non-sewer toilets cabins - Requirements of services and products relating to the deployment of cabins and sanitary products More  Comment 
DIN EN ISO 7014 2025-04-08 Water quality - Detection and quantification of SARS-CoV-2 in wastewater using real-time RT-PCR More  Comment 
DIN EN ISO 19388 2025-04-04 Sludge recovery, recycling, treatment and disposal - Requirements and recommendations for the operation of anaerobic digestion facilities (ISO 19388:2023); German version EN ISO 19388:2025 More  Comment 
DIN EN 13598-1 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 1: Specifications for ancillary fittings and shallow chambers; German and English version prEN 13598-1:2025 More  Comment 
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 

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