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 (λ)
- Wheelset geometric parameters and deviation
- Contact point position relative to wheel center
- Stability characteristics and steering forces
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DIN EN 13262
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BS EN 13262
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NF EN 13262
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UNI EN 13262
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UNE EN 13262
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NEN EN 13262
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EOLIA
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DIN EN 12469
NF S 90-351
NF X 44-201 (Octobre 1984) pour PSM
BS EN ISO 14644-1:2015
ISO 14644-3
Railway brake — anti-slide device (UIC 5
Railway brake — magnetic track brakes (U
Railway brakes — conditions for homologa
Railway brakes — disc brake pads (UIC 54
− Durchfluss von Gasen
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EPTA NORD
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DIN CEN ISO 15216-2
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AOAC 2012.01 2016
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EPA 300.1 1997
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DIN EN 10002-1
ASTM E 8
ASTM E 208
ASTM E208-06
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ERC Testing
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DIN EN 1863-1
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published 2024) for BS EN
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ERGO Umweltinstitut
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Quellen und Messgeräte > 1 mV bis
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DIN ISO 16649-2
DIN EN ISO 19020
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NF X43-050 (parties utiles de
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NF X 43-050
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NF X43-050 (parties utiles de la
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UNE-EN ISO 712
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ISO 13580
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SM 4500-NH3 F
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DIN EN ISO 21528-2
DIN EN ISO 6888-1
0.95) based on BS ISO 21527-2:2008
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DIN ISO 16649-2
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DIN ISO 11665-4
DIN EN ISO 7932
DIN 53483-2
DIN EN ISO 15213-2
NF V08-050
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