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NA 119

DIN Standards Committee Water Practice

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Projects of NA 119

Number: 442

ISO/DIS 24577 2023-07-10 Hydrometry - Use of noncontact methods for measuring water surface velocity and determining discharge More  Comment 
ISO/FDIS 13272 2023-07-03 Plastics piping systems for non-pressure underground drains and sewers - Unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP), polypropylene with mineral modifiers (PP-MD) and polyethylene (PE) - Specifications for manholes and inspection chambers in traffic areas and underground installations More  Comment 
DIN EN 16150 2023-06-16 Water quality - Guidance on pro-rata multi-habitat sampling of benthic macroinvertebrates from rivers and streams; German version EN 16150:2026 More  Comment 
DIN EN ISO 19204 2023-06-06 Soil quality - Procedure for site-specific ecological risk assessment of soil contamination (soil quality TRIAD approach) (ISO/DIS 19204:2026); German and English version prEN ISO 19204:2026 More  Comment 
ISO/FDIS 23882 2023-05-31 Sludge recovery, recycling, treatment and disposal - Beneficial use of biosolids land application - Guidelines for risk communication and management of public perception More  Comment 
ISO/DIS 21027 2023-05-30 Water quality - Determination of total organic carbon in water samples containing suspended solids by combined ultrasonic and alkaline extraction pretreatment More  Comment 
DIN EN ISO 9308-4 2023-05-29 Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 4: Membrane filtration method for Escherichia coli in water with high levels of background bacteria (ISO/DIS 9308-4:2025); German and English version prEN ISO 9308-4:2025 More  Comment 
ISO/CD TS 6671 2023-05-22 Ductile iron pipes, fittings, accessories and their joints for hot water supply More  Comment 
DIN 19631 2023-05-16 Leaching of construction products - Percolation method for the examination of the leaching behaviour of materials injected into the soil More  Comment 
DIN EN ISO 13647 2023-05-11 Water quality – Enumeration of culturable microorganisms – Colony count by spread plate inoculation on R2A medium (ISO/FDIS 13647:2026); German version FprEN ISO 13647:2026 More  Comment 

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