• 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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  • Smart Farming Standards and specifications are drivers for the digitalization of agriculture

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Projects of ISO/TC 44/SC 9/WG 4

Document number Begin Title Comment
DIN EN ISO 21904-1 rev 2025-10-22 Health and safety in welding and allied processes - Equipment for capture and separation of welding fume - Part 1: General requirements More  Comment 
DIN EN ISO 21904-2 rev 2025-10-22 Health and safety in welding and allied processes - Equipment for capture and separation of welding fume - Part 2: Requirements for testing and marking of separation efficiency More  Comment 
DIN EN ISO 21904-4 rev 2025-10-22 Health and safety in welding and allied processes - Equipment for capture and separation of welding fume - Part 4: Determination of the minimum air volume flow rate of capture devices More  Comment 

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