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Articles on welding, testing and quality

Practical notes on welder qualification, non-destructive testing, inspection and standards.

23 July 2026 EN 1090 and ISO 3834: which quality level at which execution class A common misreading is that ISO 3834 only kicks in at EXC2. It does not. EN 1090-2 requires it at every execution class — what changes is the level.

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