Project number: 2022-STN-021

Making non-destructive testing processes in rail more efficient and safer

This project updated RIS-2701-RST Rail Industry Standard for NDT Processes on Rail Vehicles to improve readability and usability. It also updated its references to external standards to reflect enhancements in methods and technology that may bring both performance and safety benefits.

'The update has enabled this key document to remain current and to capture the most up-to-date approaches.'

Mark Oakley
Professional Head of Rolling Stock, RSSB

The challenge

RIS-2701-RST sets out requirements for non-destructive testing. The standard needed updating to bring it up to date, extend the scope, and make the requirements clearer.

NDT is an important part of rail vehicle maintenance. Processes, equipment, facilities, and operatives are assessed and certified for competence and fitness for purpose. RIS-2701-RST contains guidance on the preparation, validation, and certification of these elements.

Several external standards are referenced in RIS-2701-RST. These provide a presumption of compliance to the standard. In addition, the standard specifically mentions axle testing. However, it is also to be applied to other forms of NDT used to maintain railway vehicles.

What we did

The requirements within RIS-2701-RST are now clearly distinguished from other content, aiding clarity.

The technical content has not been significantly altered. However, rationale has been added to improve users’ understanding of the intent of the requirements. The guidance in the standard has also been improved to provide greater assistance to the user.

To improve readability, the revision of RIS-2701-RST has updated the sequence, structure, and layout of its clauses.

Finally, the references to external standards have been updated to the current versions. Where possible, these references are now to recognised European or international standards. This makes the standard up to date and fit for purpose.

Benefits delivered

The revisions made to RIS-2701-RST provide greater clarity on a number of procedures related to NDT.

These include:

the preparation of test procedures
the approval of new techniques
the certification of equipment, facilities, and operatives.

The changes made as part of this project should result in improvements to the procedures in organisations conducting NDT. The aim is to introduce efficiencies, implement new techniques, and improve overall safety.