• 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 CEN/TC 121

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 
DIN EN ISO 9455-8 rev 2025-08-14 Soft soldering fluxes - Test methods - Part 8: Determination of zinc content More  Comment 
DIN EN ISO 5183-1 rev 2024-12-20 Resistance welding equipment - Electrode adaptors, male taper 1:10 - Part 1: Conical fixing, taper 1:10 More  Comment 
DIN EN ISO 2553 rev 2024-11-28 Welding and allied processes - Symbolic representation on drawings - Welded joints More  Comment 
DIN EN ISO 17660-1 rev 2024-05-24 Welding - Welding of reinforcing steel - Part 1: Load-bearing welded joints More  Comment 
DIN EN ISO 17660-2 rev 2024-05-24 Welding - Welding of reinforcing steel - Part 2: Non load-bearing welded joints More  Comment 
DIN EN ISO 18166 2023-11-17 Numerical welding simulation - Execution and documentation (ISO/DIS 18166:2025); German and English version prEN ISO 18166:2025 More  Comment 
DIN EN ISO 15653 rev 2023-10-16 Metallic materials - Method of test for the determination of quasistatic fracture toughness of welds More  Comment 

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