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EN ISO 3834 defines quality requirements for welding both in workshops and on site, and is appropriate when demonstration of a manufacturer’s capability to produce welded construction in accordance with specified criteria is required; it can also be used as the basis for assessing a manufacturer’s welding quality arrangements. 

The properties of welded products cannot be confirmed by testing alone, assurance is gained by controlling the production process. If the welding production processes are controlled in accordance with EN ISO 3834 it is recognised that the quality of the welds in the final product will meet the specified criteria. 

EN ISO 3834 ‘Quality requirements for fusion welding of metallic materials’ (reference 6) is in six parts: 

Part 1 Criteria for the selection of the appropriate level of quality requirements. 

Part 2 Comprehensive quality requirements.

Part 3 Standard quality requirements.

Part 4 Elementary quality requirements.

Part 5 Documents with which it is necessary to conform to claim conformity to the quality requirements of EN ISO 3834-2, EN ISO 3834-3 or EN ISO 3834-4.

Part 6 Guidelines on Implementing EN ISO 3834. 

Omni Assured Certification International are Accredited against EN ISO/IEC 17065 – Construction Products by INAB (Irish National Accreditation Board).

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