Magnifying fine surface defects or inspecting inaccessible internal pipe welds. Calibrated steel rulers, Vernier calipers Measuring overall weld length and defect distribution. Surface Preparation Wire brushes, grinders, solvent wipes Cleaning slag, spatter, and scale before inspection. 6. The Three Phases of Visual Inspection
Ultimate Guide to ISO 17637: Non-Destructive Testing of Welds
Re-inspect repaired areas using the same original requirements to ensure all imperfections were effectively removed. Acceptance Criteria and Reference Standards iso 17637 pdf
ISO 17637 outlines how to perform the visual inspection, but it does not specify whether a weld passes or fails. To determine acceptance, inspectors use ISO 17637 in tandem with .
Once the weld is completed and cooled to ambient temperature, the final evaluation takes place. The inspector evaluates: To determine acceptance, inspectors use ISO 17637 in
The current version of this standard is , which technically revised and superseded the older ISO 17637:2003 edition. Managed by the ISO Technical Committee ISO/TC 44/SC 5 (Testing and inspection of welds), the standard establishes a uniform methodology for executing visual examinations. ISO 17637:2016 - Visual testing of fusion-welded joints
ISO 17637 breaks down the visual testing workflow into three distinct stages: Pre-Welding Inspection : Observation of the arc
Radiographic testing, also known as X-ray testing, is a non-destructive testing technique that uses ionizing radiation to inspect the internal structure of materials. In the context of weld inspection, radiographic testing allows for the detection of defects such as cracks, porosity, and lack of fusion, which can compromise the strength and integrity of the weld.
: Observation of the arc, slag removal between passes, and checking for obvious defects like cracks or lack of fusion before they are buried by subsequent layers. After Welding
Testing helps find flaws in welded metals. It ensures machines, buildings, and bridges stay safe. The standard covers the examination of fusion welds. It applies to metallic materials.