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
🇩🇪 DIN EN 13262 🇬🇧 BS EN 13262 🇫🇷 NF EN 13262 🇮🇹 UNI EN 13262 🇪🇸 UNE EN 13262 🇳🇱 NEN EN 13262
1,632 Accredited labs
19 Countries

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UKAS 1089 Burton-on-Trent, GB
(HSG 248) – 2021 SCI/ASB/003 based on HSG 248 (PCM) based on HSG 248 SCI/ASB/001 based on HSG 248
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UKAS 0148 Burton-upon-Trent, GB
(HSG 264, 2012) 5 of HSG 227 (2004)
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COFRAC 1-7125 Guyancourt, FR
DIN EN 14385 ETSI EN 301 489-1 V2.2.3 2019-11 DIN EN ISO 21877 NF X 43-317 DIN EN 14181 + 3 more
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COFRAC 1-2383 Hombourg, FR
ISO 11737-3 DIN EN ISO 11737-2 NF EN 13824 (norme BS EN ISO 11737-1:2018
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DAkkS D-K-20497-01-01 Twist, DE
- Gleichspannung Messgeräte 1 mV > 330 mV 3,3 V Messgeräte 0,33 V + 3 more
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DAkkS D-K-17475-01-00 Hilden, DE
Vibration measuring instruments — test m Vibration measurements near traffic — me Härteprüfmaschinen Acoustics — tonality assessment (DIN 456 Noise measurement on railway vehicles — + 3 more
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STEARO

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COFRAC 1-7174 Velaux, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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STUDIO F2 SRL

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ACCREDIA 00638 Castellucchio, IT
ISO 17604 ISO 6888-2 ISO 18787 ISO 19250 AOAC 2012.01 2016 + 3 more
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SYNLAB GHANA

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DAkkS D-ML-20424-01-00 Accra, DE
Alpha-Fetoprotein Beta Human Chorionic Gonadotrophin (BHCG), quantitative CA 125 CEA + 3 more
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DAkkS D-ML-13225-01-01 Augsburg, DE
HbA1c Bilirubin Kapillare Ethanol (Blutalkohol) Parvovirus-B19-IgG, -IgM Salmonellen IgA + 3 more
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DAkkS D-ML-22313-01-00 Gauting, DE
Mycobacterium tuberculosis Komplex Mykobakterien Obligat aerobe Aktinomyceten Interferon-gamma nach + 3 more
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DAkkS D-ML-20649-01-00 Kassel, DE
HbA1c Großes Blutbild Kleines Blutbild Retikulozyten Natriumchlorid + 3 more
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DAkkS D-ML-13123-01-01 Leinfelden-Echterdingen, DE
HS Omega3 Index Steroidprofil Albendazol Beta Carotin Coenzym Q10 + 3 more
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DAkkS D-ML-13014-06-01 Regensburg, DE
HbA1c Erythrozyten Leukozyten Leukozytendifferenzierung Reticulozyten + 3 more
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DAkkS D-ML-13014-02-01 Nürnberg, DE
HbA1c Albumin Oestradiol 17ß Cortisol Salmonella spp. + 3 more
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DAkkS D-ML-13225-01-00 Augsburg, DE
HbA1c β-HCG Blutbild, automatisch Differentialblutbild, automatisch Hb-Äquivalent der Retikulozyten + 3 more
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DAkkS D-ML-13225-07-00 München, DE
angeborener Chromosomensatz partieller angeborener partieller Chromosomensatz (zur Abklärung bekannter familiärer Chromosomenveränderung) + 3 more
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DAkkS D-ML-13202-01-00 Berlin, DE
HbA1c Blutbild, maschinell Differentialblutbild, maschinell Zellzählung Retikulozyten, maschinell + 3 more
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DAkkS D-ML-13095-01-00 Ettlingen, DE
RPR (Cardiolipin) Amiodaron, Desmethylamiodaron Clozapin, Norclozapin HbA1c Cyclosporin A, Everolimus, Sirolimus, Ta + 3 more
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DAkkS D-ML-21958-01-00 Hamburg, DE
Benzodiazepine Kokain Opiate Amphetamine THC + 3 more
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DAkkS D-ML-13129-01-00 Eppelheim, DE
HbA1c Differentialblutbild Erythrozyten Hämatokrit Leukozyten + 3 more
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DAkkS D-ML-21093-01-01 Freiburg, DE
BTD PAH Prader-Willi-Syndrom (PWS) / (PWS)WS/Angelman-Syndrom (AS) Familiärer Brust- und Eierstockkrebs + 2 more
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DAkkS D-ML-13293-01-00 Mannheim, DE
ABCC6 Pseudoxanthoma elasticum (PXE) Arterienkalzifikation, generalisierte in ABCC8 Hyperinsulinämische + 3 more
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DAkkS D-ML-18938-01-01 Varel, DE
HbA1c Differentialblutbild, maschinell Kleines Blutbild Retikulozyten, maschinell Zellzahl (Leukozyten, Erythrozyten) + 3 more
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DAkkS D-ML-13122-01-00 Trier, DE
Cardiolipin (CMT) HbA1c Basophile Eosinophile Erythrozyten + 3 more
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Industries

Wheelset and bogie manufacturing Rolling stock design and engineering Track maintenance and infrastructure management Vehicle certification and type approval Railway research and development

Related Standards

  • UIC 510-2 Railway vehicles — Running gear — Wheels and wheelsets — Part 2: Definitions and gauges
  • EN 13262 Railway applications — Wheelsets and bogies — Safety requirements for wheels
  • UIC 644 Railway — behaviour of coach bogies — Y25 bogie type

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