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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees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


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Christiane Loser

Am DIN-Platz
Burggrafenstraße 6
10787 Berlin

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New projects
Document number Begin Title
DIN EN ISO 27917 2025-07-08 Carbon dioxide capture, transportation and geological storage - Vocabulary - Cross cutting terms More  Comment 
DIN EN ISO 9261/A1 2025-07-03 Agricultural irrigation equipment - Emitters and emitting pipe - Specification and test methods - Amendment 1 More  Comment 
ISO/AWI 24516-1 2025-07-02 Guidelines for the management of assets of water supply and wastewater systems - Part 1: Drinking water supply systems More  Comment 

All projects  

Current Draft Standards
Document number Edition Title
DIN EN 888 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (III) chloride; German and English version prEN 888:2025 More  Read draft and comment
DIN EN 891 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (III) chloride sulfate; German and English version prEN 891:2025 More  Read draft and comment
DIN EN 889 2025-08 Chemicals used for treatment of water intended for human consumption - Iron (II) sulfate; German and English version prEN 889:2025 More  Read draft and comment

All draft standards  

New publications
Document number Edition Procedure Title
DIN CEN/TS 14758-2 2025-08 VN Plastics piping systems for non-pressure underground drainage and sewerage - Polypropylene with mineral modifiers (PP-MD) - Part 2: Assessment of conformity; German version CEN/TS 14758-2:2025 More  Order from DIN Media
DIN EN ISO 5667-1 2025-08 Standard Water quality - Sampling - Part 1: Guidance on the design of sampling programmes and sampling techniques (ISO 5667-1:2023); German version EN ISO 5667-1:2023 More  Order from DIN Media
DIN EN ISO 4064-4 2025-07 Standard Water meters for cold potable water and hot water - Part 4: Non-metrological requirements not covered in ISO 4064-1 (ISO 4064-4:2024); German version EN ISO 4064-4:2025 More  Order from DIN Media

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Documents withdrawn without replacement
Document number Deadline for comments Title
DIN 4034-1 2025-07-31 Prefabricated concrete manholes, unreinforced, steel fibre and reinforced - Part 1: Requirements, test methods and marking for drains and sewers in addition to DIN EN 1917:2003-04 More  Comment 

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