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About NAW Projects Drafts Publications Documents withdrawn without replacement National committees European committees International committees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

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Burggrafenstraße 6
10787 Berlin

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New projects
Document number Begin Title
DIN EN ISO 25906 2026-07-23 Water quality - Determination of total organic carbon (TOC) and dissolved organic carbon (DOC) by wet chemical heated persulfate oxidation, followed by colorimetric measurement More  Comment 
DIN EN ISO 16094-4 2026-07-20 Water quality - Analysis of microplastics in water - Part 4: Sample preparation for analysis of microplastics in water More  Comment 
DIN EN ISO 16094-1 2026-07-14 Water quality - Analysis of microplastics in waters - Part 1: General More  Comment 

All projects  

Current Draft Standards
Document number Edition Title
DIN EN ISO 8224-1 2026-09 Traveller irrigation machines - Part 1: Operational characteristics and laboratory and field test methods (ISO/DIS 8224-1:2026); German and English version prEN ISO 8224-1:2026 More 
DIN EN ISO 11461 2026-09 Soil quality - Determination of soil water content as a volume fraction using coring sleeves - Gravimetric method (ISO/DIS 11461:2026); German and English version prEN ISO 11461:2026 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  Read draft and comment

All draft standards  

New publications
Document number Edition Procedure Title
DIN EN ISO 15875-5 2026-09 Standard Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 5: Fitness for purpose of the system (ISO 15875-5:2025); German version EN ISO 15875-5:2025 More  Order from DIN Media
DIN EN ISO 15875-3 2026-09 Standard Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 3: Fittings (ISO 15875-3:2025); German version EN ISO 15875-3:2025 More  Order from DIN Media
DIN EN ISO 15875-1 2026-09 Standard Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 1: General (ISO 15875-1:2025); German version EN ISO 15875-1:2025 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 
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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