To ensure you have a valid, safe, and current copy of ISO 17637, it is recommended to purchase the PDF directly from authorized sources:
The International Organization for Standardization (ISO) has developed a series of standards for non-destructive testing (NDT) of welds, including ISO 17637. This standard specifically focuses on the radiographic testing of welds, providing guidelines for the inspection of welded joints using X-ray or gamma-ray techniques. iso 17637 pdf
The maintenance of preheat and interpass temperatures (often linked with auxiliary welding standards). Phase 3: After Welding (Final Evaluation) To ensure you have a valid, safe, and
The standard typically includes the following sections to guide inspectors through the visual testing process: Phase 3: After Welding (Final Evaluation) The standard
| Risk | Consequence | |------|-------------| | | ISO 17637 may be updated (check iso.org for current version). Using old criteria could mean accepting defects now considered rejectable. | | Missing pages or illegible tables | You cannot measure porosity limits or undercut depths correctly. | | Copyright violation | Fines up to $20,000 per instance for industrial use. | | No revision history | Official PDFs contain watermarks and revision status on every page. |
ISO 17637 explicitly states that the acceptance levels for the imperfections identified during testing must be defined by an applicable application standard or specified by the contract. In the vast majority of European and international welding projects, ( Quality levels for imperfections in fusion-welded joints ) is used in tandem with ISO 17637. ISO 5817 categorizes weld quality into three levels: Level B (Stringent), Level C (Intermediate), and Level D (Moderate). Why You Must Buy the Official ISO 17637 PDF
Kael loomed over him, but the smirk was gone. Elias zoomed in on the PDF. "According to , specifically regarding visual inspection of the root pass... any indication of lack of fusion greater than 2mm requires immediate remedial action. I count three instances in these photos alone."