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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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees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: 443

DIN EN ISO 25806 2025-08-27 Water quality - Guidance on field and laboratory procedures for aquatic macroinvertebrate sample preservation for DNA based analyses More  Comment 
DIN EN ISO 25807 2025-08-27 Water quality - Guidance on laboratory procedures mechanical homogenization and DNA extraction of aquatic macroinvertebrate samples More  Comment 
ISO/AWI 23161 2025-08-22 Soil quality - Determination of selected organotin compounds - Gas-chromatographic method More  Comment 
ISO/WD 25942 2025-08-21 Water quality- determination of soluble silica in water More  Comment 
ISO/AWI 25890 2025-08-20 Technical specification for tidal bore height measurement More  Comment 
DIN EN 1401-1 2025-08-18 Plastics piping systems for non-pressure underground drains and sewers - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes, fittings and the systems; German and English version prEN 1401-1:2026 More  Comment 
ISO/WD TR 27935 2025-08-08 Carbon dioxide capture - Overview of carbon capture technologies in biomass utilisation More  Comment 
ISO/AWI TR 27938 2025-08-08 Carbon dioxide capture, transportation, and geological storage - Loading and offloading of CO2 at port facilities More  Comment 
ISO/CD 25906 2025-08-04 Water quality - Determination of total organic carbon (TOC) and dissolved organic carbon (DOC) by wet chemical heated persulfate oxidation, followed by colorimetric measurement More  Comment 
DIN 19583-1 2025-07-25 Gully tops 500 × 500 for road gullies, class C 250 and class D 400 - Part 1: Summary More  Comment 

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