It is used when product standards (like ISO 1005 series) require mandatory ultrasonic tests or when specifically ordered for a contract. Key Technical Requirements

: If you are working in engineering or manufacturing, your organization may have a subscription to standards databases like IHS Markit or ASTM Compass . Technical Context

ISO 5948 is an international standard developed by the International Organization for Standardization (ISO). It specifies the requirements for the ultrasonic testing of solid wheels and tyres used on railway rolling stock.

This standard provides the technical requirements and acceptance criteria for ultrasonic examination. It ensures that the steel components used in train wheels (tires) are free from internal defects that could lead to catastrophic failure under the high-stress conditions of rail travel. Key Content of the Standard

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