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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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees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
ISO/AWI 27919-1 2026-06-02 Carbon dioxide capture - Part 1: Performance evaluation methods for post-combustion CO2 capture integrated with a power plant More  Comment 
ISO/WD 4427-4 2026-05-27 Plastics piping systems for water supply and for drainage and sewerage under pressure - Polyethylene (PE) - Part 4: Part 4: Valves More  Comment 
ISO/AWI 23056 2026-05-26 Water reuse in urban areas - Guidelines for decentralized/onsite water reuse system - Design principles of a decentralized/onsite system More  Comment 

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Current Draft Standards
Document number Edition Title
DIN 1988-300 2026-07 Codes of practice for potable water installations - Part 300: Pipe sizing More 
DIN 19698-3 2026-07 Characterization of solids - Sampling of solid and semi-solid materials - Part 3: Sampling from transport vehicles and of containers, as well as of big-bags More 
DIN 19639 2026-07 Soil protection during planning and execution of construction projects More  Read draft and comment

All draft standards  

New publications
Document number Edition Procedure Title
DIN 19643-3/A1 2026-07 Standard Treatment of water of swimming pools and baths - Part 3: Combinations of process with ozonization and chlorination; Amendment A1 More  Order from DIN Media
DIN 19643-2/A1 2026-07 Standard Treatment of water of swimming pools and baths - Part 2: Combinations of process with fixed bed filters and precoat filters; Amendment A1 More  Order from DIN Media
DIN EN ISO 27913 2026-07 Standard Carbon dioxide capture, transportation and geological storage - Pipeline transportation systems (ISO 27913:2024, Corrected version 2025-09); German version EN ISO 27913:2025 More  Order from DIN Media

All publications  

Documents withdrawn without replacement
Document number Deadline for comments Title
DIN EN 16397-1 2026-07-31 Flexible couplings - Part 1: Performance requirements; German version EN 16397-1:2014 More  Comment 
DIN EN 16397-2 2026-07-31 Flexible couplings - Part 2: Characteristics and testing for metal banded flexible couplings, adaptors and bushes; German version EN 16397-2:2014 More  Comment 

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