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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 CEN/TC 33/WG 1

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Document number	Begin	Title	Comment
DIN EN 1121 rev	2026-06-02	Doors - Behaviour between two different climates - Test method More	Comment
DIN EN 1191	2024-03-04	Windows and doors - Resistance to repeated opening and closing - Test method; German and English version prEN 1191:2025 More	Comment

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Projects of CEN/TC 33/WG 1

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