An interesting piece on is its central role in the invisible "pulse check" of global rail safety. Specifically, the standard, titled ISO 5948:2018 — Railway rolling stock material — Ultrasonic acceptance testing , provides the technical blueprint for detecting hidden flaws in high-stress train components like wheels, tires, and axles. The "Pulse Check" for High-Speed Trains
The standard defines the conditions and acceptance criteria for non-destructive ultrasonic testing (NDT). It is typically invoked when product-specific standards (such as , ISO 1005-3 , or ISO 1005-6 ) require mandatory ultrasonic testing or when such tests are agreed upon during the ordering process. Key components covered include: Solid Wheels: For both tractive and trailing stock. Axles: Both solid and hollow variants. Tyres: Rough-rolled tyres for various railway applications. Evolution of the Standard
ISO (International Organization for Standardization) holds the copyright for this document. Unauthorized distribution is illegal and potentially dangerous if you rely on a corrupted version.
If you are currently writing a procedure or specification, do not reference ISO 5948. You should reference EN 13698-2 for acceptance levels or the component-specific standards (EN 13261 for axles, EN 13262 for wheels) which contain the most up-to-date acceptance criteria tables.