ISO 3834-2 addresses comprehensive, -3 standard and -4 elementary welding quality requirements. Select the level using ISO 3834-1 together with product risk, manufacturing complexity, customer contracts and applicable product standards. These parts are alternative requirement levels, not a substitute for procedure or personnel qualifications or product conformity obligations.
Part 2 addresses comprehensive, Part 3 standard and Part 4 elementary quality requirements. Company size alone does not determine selection; consider products, welding risks, customers and applicable product standards. ISO 3834-1 provides the selection framework. Identify the necessary technical level instead of choosing only by price.
No. ISO 3834 concerns welding quality requirements. EN 1090, PED or other routes may also apply to the product. Shared records can help, but one certificate does not complete another product procedure. Track each document's scope and conditions separately during surveillance and renewal.
The exact records for ISO 3834-2, ISO 3834-3 and ISO 3834-4 Between Difference depend on the confirmed scope. Current, consistent and traceable information reduces avoidable revisions.
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