NR/L3/TRK/055/U8
Work Instructions for Ultrasonic Rail Testing: Conformation and Examination of Vertical Longitudinal Defects
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| Organization: | NR |
| Publication Date: | 3 September 2016 |
| Status: | active |
| Page Count: | 16 |
scope:
This procedure is used to examine a rail when piping or vertical longitudinal splitting is suspected in the head or web. If the presence of such a defect is confirmed, this procedure may be used to assess the length of the rail defect.
A rail is considered suspect and examined by this procedure if:-
- There are visual indications of piping or vertical longitudinal splitting.
- There is a loss or partial loss of the rail bottom signal as defined in procedure NR/L3/TRK/055/U15 or when examining rail ends.
- Bulging of the head or web is detected.
Purpose
This ultrasonic procedure is to be used to determine the presence of and classify vertical longitudinal defects to prevent broken rails..
Document History
NR/L3/TRK/055/U8
September 3, 2016
Work Instructions for Ultrasonic Rail Testing: Conformation and Examination of Vertical Longitudinal Defects
This procedure is used to examine a rail when piping or vertical longitudinal splitting is suspected in the head or web. If the presence of such a defect is confirmed, this procedure may be used to...