ISO 3834-4 Elementary quality requirements

Quality requirements for fusion welding of metallic materials
(ISO 3834-4 looses its validity per April 30th, 2024 and will be replaced by ISO 3834-4:2021.)


The ISO 9001 standard stipulates the regulation of specific processes, such as the welding of components. The specific requirements are defined in the ISO 3834-4 standard. It is suitable for welding operations that make products in regulated and unregulated fields. Certification pursuant to ISO 3834-4 highlights the great significance of welding.


ISO 3834-4 supports customer-oriented solutions and optimises process control. It reduces risks and costs.

Target groups

Manufacturers of welded components in regulated and unregulated fields.


3 years - there is an annual audit to ensure that standards are being maintained and a recertification audit after 3 years.


The SQS certificate of conformity with ISO 3834-4 has international validity and is recognised worldwide through the IQNET membership.


ISO 3834-4 can be extended to the integrated management system in combination with ISO 9001 (quality management), ISO 14001 (environmental management) and ISO 45001 (Occupational Health and Safety Management).

Lead Auditor
Christoph Abert
Would you like
(*) are mandatory