Scope
UIC 519
Railway Wheelset Equivalent Conicity Determination
This test method specifies procedures for determining the equivalent conicity of railway wheelsets, a critical parameter governing vehicle stability and steering behavior on curves. Conicity describes the geometric relationship between wheel profiles and rail geometry, affecting how vehicles negotiate curves and respond to track irregularities. The measurement is essential for wheelset manufacturers, vehicle designers, and track maintenance specialists to ensure stable, safe operation and minimize wear and derailment risk. Accredited testing provides objective verification that wheelsets meet design specifications and regulatory requirements for dynamic safety.
What it measures
- Wheel profile geometry and taper angles
- Equivalent conicity value (ฮป)
- Wheelset geometric parameters and deviation
- Contact point position relative to wheel center
- Stability characteristics and steering forces
๐ฉ๐ช
DIN EN 13262
๐ฌ๐ง
BS EN 13262
๐ซ๐ท
NF EN 13262
๐ฎ๐น
UNI EN 13262
๐ช๐ธ
UNE EN 13262
๐ณ๐ฑ
NEN EN 13262
1,632
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Air Surveys
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(HSG 248) โ 2021
APP 7 based on HSG 248
(PCM) based on HSG 248
(PCM) based on HSG 248)
APP 15 based on HSG 248
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(HSG 248) โ 2021
AEC 1 based on HSG 248
(PCM) based on HSG 248
AEC 6 based on HSG 248
Airtech Analysis
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(HSG 248) โ 2021
(PCM) based on HSG 248
staining based on HSG 248
(HSG 264, 2012)
Appendix 5 of HSG 227 (2004))
BS ISO 18283:2022
ASTM D2234 (location E)
ASTM D2013 (location B)
BS ISO 5074:2015; and
ASTM D409:2016
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Allied Aerosystems
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DC Resistance
2.92 mm systems (continued)
DC VOLTAGE
AC CURRENT
DC Power
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Amentum Clean Energy
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OM H-3 based on ISO 9698:2019
ISO 9696:2017 and ISO
(HSG 248) โ 2021
(PCM) based on HSG 248
staining based on HSG 248.
Amentums Materials Testing and Research Laboratory part of Energy Safety and Risk Consultants (UK)
Active
a) BS 7270:2006
b) BS 3518-3:1963 (Withdrawn)
ASTM E1820-18ae1 (Withdrawn)
ISO 6892-2
BS EN ISO 204
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Anchem Laboratories
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(HSG 248) โ 2021
ANC/AS/2 based on HSG 248
DIN EN 14791
IEC 60519-11
DIN EN 13284-1
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Andersen Caledonia
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requirements of HTM 01-06 Part E
35 ยฐC/3 days based on HTM 2030
Part E, WHTM 01-06 Part E & BS EN
ISO 15883-4 using R2A and
Part E, HTM 0106 Part E, WHTM 01-
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Asbestos Analytical Services
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(HSG 248) โ 2021
LSD.ASB.02 based on HSG 248
LSD.ASB.04 based on HSG 248
(PCM) based on HSG 248
(HSG 248) โ 2021
QOP03 based on HSG 248
(PCM) based on HSG 248
(PCM) based on HSG 248)
QOP01 based on HSG 248
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