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
Accredited labs
19
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Fourstage Environmental
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(HSG 248) โ 2021
(PCM) based on HSG 248
DOC/002 based on HSG 248
Fugro GB
Active
BS 1377: Part 2: 1990
BS 1377-3:2018 + A1:2021
ASTM D4186-12: 2020
ASTM D5334-22
ASTM D2216-19
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Furness Controls
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FLOW
Gas pressure (absolute)
Gas pressure (gauge)
DC CURRENT
TEMPERATURE
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G&L Consultancy
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(HSG 248) โ 2021
M4 based on HSG 248
(PCM) based on HSG 248
M3 based on HSG 248
(HSG 264, 2012)
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G&M Procter
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based on ISO 11133:2014+Amd
dependent) based on BS EN
based on BS EN 12322:1999
G.B.N.S. Partnership
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(HSG 248) โ 2021
(PCM) based on HSG 248
PRO02 based on HSG 248
Gaspack Services
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BS EN ISO 18119:2018+A1:2021
BS EN 14876:2007/Internal proceduresDiss
BS EN ISO 10460:2018
ISO 23088:2020
Glasgow City Council
Active
(HSG 248) โ 2021
staining based on HSG 248
F2011 (BS 696:Part 2:1989)
F0131 (BS 1741:10-1:1989) using
F0008 (BS 696:Part 2:1989) using
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Gully Howard Technical
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HSG 227 (2004))
(HSG 264, 2012)
HSG 264 (2012) and Appx. 3 of
Appendix 5 of HSG 227 (2004))
HORIBA MIRA
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IEC/CISPR 25
DIN EN 55025: 2018
ISO 7637-2
ISO 11451-1
IEC/CISPR 12
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HSL Compliance
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(HSG 248) โ 2021
M003 based on HSG 248
(PCM) based on HSG 248
M002based on HSG 248
HSG 227 (2004))
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Hampshire Scientific Service
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(HSG 248) - 2021
ASB/SOP/OM8 based on HSG 248
ASB/SOP/OM6 based on HSG 248
DIN EN 12697-11
on BS 4401:Part 3:1970(1986)
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Hartford Steam Boiler UK
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BS 2790 - Specification for the design a
BS 1113 - Specification for the design a
BS EN 13480 Parts 1 to 8 - Metallic
EN 13445 โ Parts 1 to 10 Unfired pressur
BS EN ISO 15614 and ASME IX
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(HSG 264, 2012)
and Appx. 3 of HSG 227 (2004))
Executive guides HSG 264 (2012)
Heywood Williams Components
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DIN EN 1026
DIN EN 12046-2
BS 6375-1:2015 + A1:2016 and the
DIN EN 1027
DIN EN 1629
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I2 Analytical
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staining based on HSG 248.
(HSG 248) โ 2021
(PCM) based on HSG 248
A007B based on BS EN15051-2:2013 +1:2016
DIN EN 12457-3
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IFS Laboratories
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BS 5852
BS 6807:1986
BS 5866:Part 1:1990
DIN EN 1021-1
BS 7175:1989
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ITS Testing Services (UK)
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BS EN ISO 1833-1:2020
And the following parts of ISO 1833
ISO 1833-4:2017/EU Reg. method 2ISO 1833
ISO 1833-3: 2019
ISO 1833-6: 2019
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