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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Climate change Standards and specifications support climate targets
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Projects of NA 119-07-03-01 UA

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Document number	Begin	Title	Comment
DIN 4900-1	2025-11-05	Steel filter and solid wall pipes for wells - Part 1: Solid wall pipes and slot perforation filters More	Comment
DIN 4900-2	2025-11-05	Steel filter and solid wall pipes for wells - Part 2: Wire wrapped screens made of stainless steel More	Comment
DIN 4904	2025-11-05	Poured sealing clay for well construction - Requirements and testing More	Comment
DIN 1239	2025-11-05	Coverings for wells, spring water chambers and other water supply construction - Principles for construction More	Comment
DIN 4944	2025-11-05	Closures for groundwater measuring stations More	Comment

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