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
๐Ÿ‡ง๐Ÿ‡ช NBN EN 13262 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN 13262 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN 13262 ๐Ÿ‡ซ๐Ÿ‡ท NF EN 13262 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN 13262 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN 13262 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN 13262
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UKAS 9988 Eastbourne, GB
EDTA Whole Blood Blood Grouping: | SOP 1 Kings Drive | +44 (0) 300 131 4497 EDTA Whole Blood Full blood counts and a MCH | HAJ-184 EDTA Whole Blood Erythrocyte Sedimentati + 3 more
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UKAS 9055 Eastbourne, GB
Paediatric Audiology | Otoscopy Paediatric Audiology | History taking Paediatric Audiology | Tympanometry Paediatric Audiology | Performance Test Paediatric Audiology | Play Audiometry + 3 more
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UKAS 10169 Jordanstown, GB
EN ISO 1716 EN ISO 11925-2 BS 1363-1 DIN 10964 DIN EN 13964 + 3 more
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UKAS 4225 Deeside, GB
dbSNP rs1800562, rs1799945, rs1800730, r DIN EN 1948-4 (HSG 248) โ€“ 2021 (PCM) based on HSG 248 based on BS EN 12457
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UKAS 0621 Wednesbury, GB
ISO 3795 DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN 60068-2-78 IEC 60068-2-2 + 3 more
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UKAS 2604 Wentloog, GB
(HSG 264, 2012) Executive guides HSG 264 (2012) and Appx. 3 of HSG 227 (2004)) (HSG 248) โ€“ 2021 in Appendix 5 of HSG 227 (2004) + 3 more
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UKAS 0441 Glasgow, GB
(HSG 264, 2012) Asbestos: The Analysts' Guide (HSG 248) Surveying for asbestos in premises HSG 264 (2012) and Appx. 3 of
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UKAS 1755 Redditch, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 SOP/11, based on HSG 248
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UKAS 1227 Fareham, GB
DIN EN 12457-2 (HSG 248) โ€“ 2021 (PCM) based on HSG 248 staining based on HSG 248. 3.02 based on HSG 248
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Envirolab

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UKAS 1247 Hattersley, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 2719 Cannel Row, GB
Appendix 5 of HSG 227 (2004) (HSG 248) โ€“ 2021 (HSG 264, 2010) (PCM) based on HSG 248 TP003 based on HSG 248 + 1 more
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UKAS 2099 Exeter, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 SP1 based on HSG 248
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UKAS 9608 Basildon, GB
(HSG 264, 2012) Executive guides HSG 264 (2012) and Appx. 3 of HSG 227 (2004))
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Environtec

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UKAS 2030 Chelmsford, GB
(HSG 248) โ€“ 2021 staining based on HSG 248 (PCM) based on HSG 248
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UKAS 28785 Wolverhampton, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 SOP 3 based on HSG 248
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UKAS 8353 Buckinghamshire, GB
Epilepsy Society Serum and plasma Brivaracetam | TDM-TST- Carbamazepine + carbamazepine-epoxide (m Clobazam + Desmethylclobazam (metabolite Clonazepam + 3 more
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UKAS 8007 Corringham, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 TP03 based on HSG 248
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UKAS 2734 Darlington, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 TP005, based on HSG 248
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UKAS 0076 Northampton, GB
DIN EN 597-1 DIN EN 597-2 DIN EN 1021-1 DIN EN 1021-2 BS 5852 + 3 more
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UKAS 2183 Newmarket, GB
DIN EN 12457-2 DIN EN 12457-3 (HSG 248) โ€“ 2021 (PCM) based on HSG 248 staining based on HSG 248.
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UKAS 9256 Guildford, GB
HbA1c Cortisol Glucose CA 125 CEA + 3 more
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UKAS 27424 Guildford, GB
Whole blood Non-Invasive Prenatal Testin Aneuploidies in Chromosome 13, | Prenata Non-Invasive Prenatal Testing for Aneupl 18, 21, X and Y and Foetal sexing | Illu 18, 21, X and Y and Foetal sexing | CLIN + 3 more
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UKAS 0452 Bideford, GB
Flicker Total Harmonic Distortion HF-Transmission Phase CFH-Gen, Macula-Degeneration IEC 61000-4-2: 2008 + 3 more
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UKAS 1574 York, GB
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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UKAS 9659 Grimsby, GB
ISO 21527-1 ISO 4833-1 ISO 15213-2 ISO 10272-1 ISO 16654 + 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 โ€” Running gear โ€” Wheels and wheelsets โ€” Part 2: Definitions and gauges
  • EN 13262 Railway applications โ€” Wheelsets and bogies โ€” Safety requirements for wheels
  • UIC 644 Railway โ€” behaviour of coach bogies โ€” Y25 bogie type

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