NR/L3/TRK/3416 ISSUE 1
Management of Rails Ultrasonically Tested by the Ultrasonic Test Unit (UTU)
|Publication Date:||7 March 2020|
This standard applies to:
a) all track segments authorised by the RAM[T] and recorded on a NR/L3/TRK/003/TEF325
b) all P1*- P4 UTU ultrasonic suspects identified by the UTU.
It does not apply to: eddy current testing; the ultrasonic testing of planed rail sections; or additional specified ultrasonic testing.
NOTE: The UTU estimates the size of ultrasonic suspects to assign a verification priority to each suspect.
This document provides a process for the management of UTU ultrasonic suspects and UTU ultrasonically untested track sections.
a) the requirements outlined in NR/L2/TRK/001/06; and
b) the Non-Actionable Repeat Marked Object (NARMO) process.