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NR RT/CE/S/014

Rail Testing - Detection Criteria (aka NR/SP/TRK/014)

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Organization: NR
Publication Date: 1 October 1997
Status: active
Page Count: 13
scope:

The specification applies to the testing of all rails in Railtrack owned permanent way. It does not cover the detection of defects in alumino-thermic welds or cast crossings.

PURPOSE

This document defines the performance specification for the non-destructive testing of normal (pearlitic) rail and is expressed in terms of defect size thresholds and their probabilities of detection.

Document History

NR RT/CE/S/014
October 1, 1997
Rail Testing - Detection Criteria (aka NR/SP/TRK/014)
The specification applies to the testing of all rails in Railtrack owned permanent way. It does not cover the detection of defects in alumino-thermic welds or cast crossings. PURPOSE This document...
RT/CE/S/014 ISSUE 1
October 1, 1995
Rail Testing - Detection Criteria (aka NR/SP/TRK/014)
The specification applies to the testing of all rails in Railtrack owned permanent way. It does not cover the detection of defects in alumino-thermic welds or cast crossings. PURPOSE This document...

References

This document references:
NR RT/CE/S/057 - Rail Failure Handbook (aka NR/SP/TRK/057)
Published by NR on October 6, 2001
The contents of this standard apply to all running lines on Railtrack controlled infrastructure. PURPOSE This specification defines: - • The reporting requirements for broken and defective rails,...
This document references:
NR RT/CE/S/057 - Rail Failure Handbook (aka NR/SP/TRK/057)
Published by NR on October 6, 2001
The contents of this standard apply to all running lines on Railtrack controlled infrastructure. PURPOSE This specification defines: - • The reporting requirements for broken and defective rails,...
This document is referenced by:
NR/L2/CTM/012/055 - SIG 55: G110 Tester/Lead Tester
Published by NR on September 3, 2011
This competence standard covers the role of persons undertaking G110 testing to demonstrate that the appropriate design, installation and testing specifications are met and that assets are fit to be...
This document is referenced by:
NR/L3/TRK/055/U1 - Work Instructions for Ultrasonic Rail Testing: Ultrasonic Inspection of Fishplated Joints and Holes in Plane Line Using Hand Held Transducers
Published by NR on September 3, 2016
This procedure applies to all pearlitic rail ends applying both compression and shear wave scans. This procedure is capable of detecting the following defect types:- Horizontal defects Bolt hole...
This document is referenced by:
NR/L3/TRK/055/U5 - Work Instructions for Ultrasonic Rail Testing: Ultrasonic Assessment of Rail Head Defects to Determine Horizontal Length and Vertical Depth of Reported Discontinuity
Published by NR on September 3, 2016
This procedure applies to the defects listed below in all pearlitic rails as far as coupling conditions allow, see table 1. Squats Wheelburns Arc weld head repairs Tache Ovales Severe/Heavy rolling...
This document is referenced by:
NR/L3/TRK/055/U6 - Work Instructions for Ultrasonic Rail Testing: Ultrasonic Inspection for Lack of Fusion of Aluminothermic Welds
Published by NR on September 3, 2016
This procedure details the manner in which aluminothermic welds will be ultrasonically tested in the track, for vertically orientated lack of fusion defects in the head, web and foot areas of the...
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