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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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees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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DIN e. V.
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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 15935 rev 2026-06-15 Soil, waste, treated biowaste and sludge - Determination of loss on ignition More  Comment 
DIN EN 1451-1 rev 2026-06-10 Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Polypropylene (PP) - Part 1: Specifications for pipes, fittings and the system More  Comment 
ISO/AWI 26615 2026-06-10 Guidelines for the urban reclaimed water for the production of ultra-pure water used in the electronics and semiconductor industries More  Comment 

All projects  

Current Draft Standards
Document number Edition Title
DIN 19698-6 2026-08 Characterization of solids - Sampling of solid and semi-solid materials - Part 6: In situ sampling, with CD-ROM More 
DIN EN ISO 25177 2026-08 Soil quality - Field soil description (ISO/DIS 25177:2026); German and English version prEN ISO 25177:2026 More 
DIN EN ISO 22125-2 2026-08 Water quality - Technetium-99 - Part 2: Test method using inductively coupled plasma mass spectrometry (ICP-MS) (ISO/DIS 22125-2:2026); German and English version prEN ISO 22125-2:2026 More 

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 18127 2026-07 Standard Water quality - Determination of adsorbable organically bound fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) - Method using combustion and subsequent ion chromatographic measurement (ISO 18127:2026); German version EN ISO 18127:2026 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 
DIN EN 12763 2026-08-31 Fibre-cement pipes and fittings for discharge systems for buildings - Dimensions and technical terms of delivery; German version EN 12763:2000 More  Comment 

All withdrawals  

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