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TWI Certification Ltd
Factory Production Control
Do I need to comply with ISO 3834 when seeking EN 1090 certification?

Do I need to comply with ISO 3834 when seeking EN 1090 certification?

Yes, if you conduct welding. Under the welding sections of EN 1090 Part 2, for Steel Structures, and EN 1090 Part 3, for Aluminium Structures, it states that "welding shall be undertaken in accordance with the requirements of the relevant part of EN ISO 3834".