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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees

About NAW

The DIN Standards Committee Water Practice (NAW) is responsible for the standardization in the concise field of water-related aspects and promotes the propagation and application of these standards. The technical work is performed in the committees Environment (waste, soil and water quality), Water engineering, Water supply and Waste water engineering. The NAW takes care of the national contribution to European and International standardization in these fields.

How is NAW composed?


Contact

DIN e. V.
Dr.
Christiane Loser

Am DIN-Platz
Burggrafenstraße 6
10787 Berlin

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New projects
Document number Begin Title
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 

All projects  

Current Draft Standards
Document number Edition Title
DIN EN ISO 19204 2026-03 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 
DIN EN 15189 2026-03 Ductile iron pipes, fittings and accessories - External polyurethane coating for pipes - Requirements and test methods; German and English version prEN 15189:2026 More 
DIN EN ISO 5667-1 2026-02 Water quality - Sampling - Part 1: Guidance on the design of sampling programmes and sampling techniques (ISO/DIS 5667-1:2025); German and English version prEN ISO 5667-1:2025 More  Read draft and comment

All draft standards  

New publications
Document number Edition Procedure Title
DIN EN ISO 11465 2026-03 Standard Sludge and solid environmental matrices - Determination of dry residue or water content and calculation of the dry matter fraction on a mass basis (ISO 11465:2025); German version EN ISO 11465:2025 More  Order from DIN Media
DIN 4925-1 2026-03 Standard Well screens and casings of unplasticized polyvinylchloride (PVC-U) for tube wells - Part 1: DN 35 to DN 100 with pipe thread More  Order from DIN Media
DIN 4925-2 2026-03 Standard Well screens and casings of unplasticized polyvinylchloride (PVC-U) for tube wells - Part 2: DN 100 to DN 200 with trapezoidal thread More  Order from DIN Media

All publications  

Documents withdrawn without replacement
Document number Deadline for comments Title
DIN V 38407-11 2026-02-28 German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 11: Determination of selected organic plant protecting agents by Automated Multiple Development (AMD)-technique (F 11) More  Comment 

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