: Inspectors check for contaminants (oil, rust), correct bevel angles, and proper fit-up/alignment. During Welding
For a visual inspection to be valid under ISO 17637, the environmental conditions must optimize the human eye's capability.
When searching for an , it is crucial to acquire it through legitimate engineering channels to ensure you are referencing the most up-to-date revision. Standardizing bodies continuously update guidelines to match evolving manufacturing technologies. iso 17637 pdf
While direct visual inspection is preferred, ISO 17637 recognizes that human vision often requires mechanical assistance to verify precise measurements or access restricted spaces. Approved inspection aids include:
In practice, these two standards are used together. An inspector follows the to prepare for the inspection, but they use the criteria of ISO 5817 to make the pass/fail decision. You cannot have effective visual quality control without both documents. : Inspectors check for contaminants (oil, rust), correct
: Inspections must be carried out by qualified personnel, often recommended to be certified according to or equivalent regional standards. Inspection Stages
Inspecting the quality, size, and pitch of tack welds. 2. In-Process Inspection An inspector follows the to prepare for the
The primary objective of ISO 17637 is to identify surface imperfections (non-conformities) in the weld. Common defects found during visual testing include:
Scanning for undercut, overlap, surface porosity, stray arcs, and surface cracks.
Complete Guide to ISO 17637 PDF: Visual Testing of Fusion-Welded Joints
: Inspectors must be appropriately qualified and experienced to identify surface discontinuities and interpret results. Inspection Phases Before Welding