scope:

This specification covers proficiency in Ultrasonic Testing of rail and associated components. It shall apply to the certification of all LU NDT ultrasonic operators, testers and third party suppliers completing ultrasonic and NDT testing on LU Track. It meets the requirements of BS EN ISO 9712 (ex. BS EN 473) and follows the guidelines set out in the American Society for Non-destructive Testing (ASNT) document SNT-TC-1A.

Purpose

The purpose of this specification is to define London Underground's (LU) requirements for the control and administration systems for the training, examination and certification programmes for personnel who perform ultrasonic and Non-destructive Testing (NDT) on LU infrastructure.