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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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees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
Document number DIN EN ISO 6461-2 rev Begin 2025-06-06 Title Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration More  Comment 
Document number ISO/AWI 25806 Begin 2025-05-28 Title Water quality - Guidance on field and laboratory procedures for aquatic macroinvertebrate sample preservation for DNA based analyses More  Comment 
Document number ISO/AWI 25807 Begin 2025-05-28 Title Water quality - Guidance on laboratory procedures mechanical homogenization and DNA extraction of aquatic macroinvertebrate samples More  Comment 

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Current Draft Standards
Document number Edition Title
Document number DIN 19294-2 Edition 2025-08 Title Devices for the disinfection of water using ultraviolet radiation - Part 2: Devices equipped with UV medium pressure lamps - Requirements and testing More 
Document number DIN EN 752/A1 Edition 2025-07 Title Drain and sewer systems outside buildings - Sewer system management; German and English version EN 752:2017/prA1:2025 More 
Document number DIN EN ISO 23611-1 Edition 2025-07 Title Soil quality - Sampling of soil invertebrates - Part 1: Hand-sorting and extraction of earthworms (ISO/DIS 23611-1:2025); German and English version prEN ISO 23611-1:2025 More  Read draft and comment

All draft standards  

New publications
Document number Edition Procedure Title
Document number DIN EN ISO 4064-1 Edition 2025-07 Procedure Standard Title Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO 4064-1:2024); German version EN ISO 4064-1:2025 More  Order from DIN Media
Document number DIN EN ISO 4064-2 Edition 2025-07 Procedure Standard Title Water meters for cold potable water and hot water - Part 2: Test methods (ISO 4064-2:2024); German version EN ISO 4064-2:2025 More  Order from DIN Media
Document number DIN 19659 Edition 2025-07 Procedure Standard Title Characterization of solids - Quality assurance and quality control - Re-transferability of measurement results of the test characteristics with regard to their distinctness and distribution in the population More  Order from DIN Media

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Documents withdrawn without replacement
Document number Deadline for comments Title
Document number DIN 4034-1 Deadline for comments 2025-07-31 Title 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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