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NA 119

DIN Standards Committee Water Practice

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Projects of NA 119

Number: 411

DIN EN 1420 2023-05-31 Influence of organic materials on water intended for human consumption - Determination of odour, flavour, colour and turbidity of water in piping and storage systems; German version FprEN 1420:2025 More  Comment 
ISO/CD 21027 2023-05-30 Water quality - Determination of total organic carbon for suspended solid containing water samples based on 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/AWI TS 6671 2023-05-22 Thermal preinsulated ductile iron pipes, fittings, accessories and their joints for heat 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 
ISO/FDIS 16611 2023-05-15 Plastics piping systems for drainage and sewerage without pressure - Non-circular pipes and joints made of glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resins (UP) - Dimensions, requirements and tests 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/DIS 13647:2025); German and English version prEN ISO 13647:2025 More  Comment 
DIN EN ISO 22032 2023-05-11 Water quality - Determination of polybrominated diphenyl ethers (PBDE) in sediment, suspended (particulate) matter and biota - Method using gas chromatography-tandem mass spectrometry or high resolution mass spectrometry (GC-MS/MS; HRMS) (ISO/DIS 22032:2025); German and English version prEN ISO 22032:2025 More  Comment 
DIN EN ISO 18127 2023-05-11 Water quality - Determination of adsorbable organically bound fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) - Method using combustion and subsequent ion chromatographic measurement (ISO/FDIS 18127:2025); German version FprEN ISO 18127:2025 More  Comment 
DIN EN ISO 18724 2023-05-11 Water quality - Determination of dissolved chromium(VI) in water - Photometric method (ISO 18724:2025); German version EN ISO 18724:2025 More  Comment 

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