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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NBN EN 13262
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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
3,987
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ASTM D2240-15
CEM DI-012
CEM DI-008
CEM DI-021
CEM DI-005
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Railway wheel-rail interaction — roughne
DIN EN 13126-19
DIN EN ISO 16911-1
ISO 5667-11
ISO 5667-10
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AQA Wasseranalysen
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DIN 38404-C 4
DIN EN ISO 19458 (K 19)
DIN EN ISO 16266 (K 11)
DIN EN ISO 9308-1 (K 12)
DIN EN ISO 11731 (K 23)
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DIN EN ISO 11885
DIN EN ISO 17294-2
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ISO 18787
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DIN EN ISO 4833-1
DIN EN ISO 19458
DIN EN 846-7
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ISO/IEC 25010
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Tensile testing of metallic materials (I
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
DIN EN 10160
DIN EN ISO 17637
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AQRAT
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und Radsatzmerkmale 22 mm
133 mm
Antastelementen mit
Messschieber für 0 mm
Bügelmessschrauben* 0 mm
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AQUABIO
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DIN EN 27888
DIN EN ISO 10523
DIN ISO 17289
DIN EN ISO 5667-15
ISO 10523
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NF T 90-333
NF T 90-388
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NF T 90-395
NF T 90-328
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ARACE LABORATORI Srl
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ISO 4832
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DIN EN ISO 4833-1
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DIN EN ISO 665
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DIN ISO 16649-2
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ARC Regulatory
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Morphological assessment and interpretat
Molecular examination activities
Immunohistochemistry examination activit
Immunohistochemistry to detect
CLDN 18
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ARCADIA S.R.L. a socio unico
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DIN EN 15408
DIN EN 13657
DIN EN 14346
DIN EN ISO 10304-1
DIN EN ISO 17294-2
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ARCALAB
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ISO 5667-5
APAT CNR IRSA 2060 Man 29 2003
APAT CNR IRSA 4020 Man 29 2003
Rapporti ISTISAN 2019/07 pag 99 Met
ARGANO ASESORES
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Railway wheel-rail interaction — roughne
BS ISO 15713:2006
UNE-EN ISO 16911-1
UNE-EN 15058
UNE-EN 14792
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ARGO GROUP S.C.a R.L.
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DIN EN ISO 4833-1
DIN EN ISO 6888-2
DIN EN ISO 17141
DIN EN 1186-3
ISO 11731
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ISO 18787
ISO 21527-1
ISO 21527-2
DIN EN ISO 6579-1
DIN EN ISO 7932
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ISO 11731
ISO 16649-2
ISO 11290-1
ISO 11290-2
ISO 21528-2
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ARPA Abruzzo - Agenzia Regionale per la Protezione Ambientale - Distretto Provinciale di Teramo
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DIN EN ISO 10304-1
VDE 414-9-11
ISO 10304-1
ISO 6222
ISO 7899-2
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