BS EN 970 requires the inspector to identify and measure imperfections. These are generally categorized as follows:
The standard instructs the inspector to refer to the relevant application standard or specification for acceptance criteria. The most common referenced standards for quality levels are:
was the primary British and European standard for the visual examination of fusion welds
. However, it is important to note that this standard has been withdrawn and superseded BS EN ISO 17637 Intertek Inform bs en 970 visual inspectionpdf best
While many legacy procedures still refer to BS EN 970, current quality management systems and projects (such as those under
) typically require compliance with the updated ISO version. SteelConstruction.info Key Components of the Standard
The standard provides a systematic framework for inspecting welds at various stages of production to ensure structural integrity and compliance with design specifications. irp.cdn-website.com BS EN 970 requires the inspector to identify
To use BS EN 970 effectively (achieving the "best" results), the following workflow should be adopted:
Project ID: _____________ Weld No: _____________ Inspector: _____________
Lighting Conditions: >500 Lux verified? ☐ Yes ☐ No (Per Annex A) was the primary British and European standard for
Visual Aid: Illuminated magnifier (2-5x) used? ☐ Yes ☐ No
| Stage | Feature to Inspect | BS EN 970 Clause | Accept (Y/N) | | :--- | :--- | :--- | :--- | | Pre-weld | Parent metal laminations | 5.2 | ☐ | | Pre-weld | Fit-up gap (mm) | 5.3 | ☐ | | In-process | Interpass cleaning | 6.2 | ☐ | | Post-weld | Surface cracks (VT) | 8.1 | ☐ | | Post-weld | Undercut depth (max 0.5mm) | Table 1 | ☐ | | Post-weld | Crater pipe | 8.4 | ☐ |
Downloadable Tip: To get the best results from your PDF, copy the tables directly into your ERP or QMS software.
The standard specifies that inspection must be performed with the naked eye or with the aid of optical instruments.
BS EN 970 applies to the visual inspection of fusion welds in metallic materials. It details how the inspection should be performed, the equipment required, and the necessary skills of the inspector. It does not, however, define acceptance criteria (what constitutes a "pass" or "fail") on its own.