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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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees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: 419

ISO/AWI 22908 2026-01-23 Water quality - Radium 226 and Radium 228 - Test method using liquid scintillation counting More  Comment 
ISO/AWI 13161 2026-01-23 Water quality - Polonium 210 - Test method using alpha spectrometry More  Comment 
ISO/AWI 21138-3 2026-01-21 Plastics piping systems for non-pressure underground drainage and sewerage - Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 3: Pipes and fittings with non-smooth external surface, Type B More  Comment 
ISO/AWI 21138-1 2026-01-21 Plastics piping systems for non-pressure underground drainage and sewerage - Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 1: Material specification and performance criteria for pipes, fittings and systems More  Comment 
ISO/AWI 21138-2 2026-01-21 Plastics piping systems for non-pressure underground drainage and sewerage - Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 2: Pipes and fittings with smooth external surface, Type A More  Comment 
ISO/AWI 26301 2026-01-15 Marine environmental impact assessment (MEIA) - Technical specifications for marine biotic surveys in the international seabed area - Benthic macrofauna More  Comment 
DIN 19522 2026-01-14 Cast iron drainage pipes and fittings without socket (SML) More  Comment 
DIN 1221 2026-01-14 Dirt trap for manhole covers More  Comment 
DIN CEN/TS 1046 rev 2026-01-12 Thermoplastics piping and ducting systems - Outside the building structures for gravity and pressurised systems - Trench installation More  Comment 
DIN EN ISO 24577 2026-01-12 Hydrometry - Use of non-contact methods for measuring water surface velocity and determining discharge More  Comment 

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