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
🇧🇪 NBN EN 13262 🇩🇪 DIN EN 13262 🇬🇧 BS EN 13262 🇫🇷 NF EN 13262 🇮🇹 UNI EN 13262 🇪🇸 UNE EN 13262 🇳🇱 NEN EN 13262
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UKAS 0630 Amesbury, GB
SPECTRAL TRANSMITTANCE Wavelength 380 nm materials
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UKAS 8642 Liverpool, GB
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Themisis

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RvA I381 Zaltbommel, NL
#ISO 6618 # EN 116-97 #EN ISO 5164:14 # ISO 13736 NEN 4400-1
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DAkkS D-K-17616-01-01 Langenselbold, DE
Railway braking — urban guided transport Railway vehicles — specific test require - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand + 3 more
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Thermo Sensor

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DAkkS D-K-18093-01-00 Werne, DE
Tensile testing of metallic materials (I Railway braking — urban guided transport Railway vehicle body structural requirem Temperaturmessgrößen thermoelemente und + 3 more
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DAkkS D-K-19243-01-00 Weilburg, DE
Vickers hardness test (ISO 6507) Railway braking — urban guided transport Railway bogies — wheelsets and bogies st Railway vehicles — gauge limits (UIC 505 Taupunkttemperatur + 3 more
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Thermowatt

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ACCREDIA 01561 Arcevia, IT
DIN EN 50440 DIN EN 50440
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Thomas Dudley

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UKAS 20013 Dudley, GB
Laktoseintoleranz (LCT -14055 DIN EN 997 BS 1212-2:1990 Clause 4 BS 1212-3:1990 Clause 4 BS 1212-4:1991 Clause 4, 13, 14
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UKAS 0249 Kenilworth, GB
LENGTH LENGTH (cont’d)
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DAkkS D-PL-17471-01-01 Duisburg, DE
20 HR10/60 EN ISO 1716 DIN EN ISO 6506-1 DIN EN ISO 6507-1 DIN EN ISO 643 + 3 more
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DAkkS D-PL-14600-01-05 Jena, DE
DIN EN 15621 DIN EN 15111 DIN EN 15763 DIN EN ISO 6579-1 DIN EN ISO 10523 (C 5) + 3 more
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DAkkS D-K-18223-01-02 Ilmenau, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Railway braking — urban guided transport > 100 G Frequenz + 3 more
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DAkkS D-PL-17582-01-00 Jena, DE
tration von Harnstoff pH - Wert Glucose Natriumchlorid Kalium + 3 more
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DAkkS D-PL-18094-01-00 Poing, DE
Salmonellen Chlamydien Influenza A RNA DIN EN ISO 6579-01 PCV2 + 3 more
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DAkkS D-PL-14030-01-01 Ankum, DE
Salmonella spp. Yersinia spp. Enterobacteriaceae Campylobacter spp. Corynebakterien + 3 more
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DAkkS D-K-17246-01-00 Berlin, DE
Vickers hardness test (ISO 6507) Acoustics — tonality assessment (DIN 456 Railway brake — magnetic track brakes (U Werkstoffprüfmaschinen Länge (WPM) + 3 more
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ACCREDIA 02071 Montoro, IT
DIN EN ISO 10304-1 DIN EN 14039 DIN EN ISO 16703 ISO 10304-1 ISO 6222 + 3 more
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UKAS 8916 Lowe’s Bridge, GB
Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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UKAS 8915 Lowe’s Bridge, GB
Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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UKAS 8917 Lowe’s Bridge, GB
D-Dimer Measurement Detection of the following: | Special St Antibodies: | Adrenal Factor assays: | Werfen ACL TOP 550 + 3 more
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UKAS 8914 Torquay, GB
Cytomegalovirus Fungi Measurement Nuclear protein in lung and thyroid | Th Detection of the following: | Special St + 3 more
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UKAS 8299 Torbay Hospital, GB
Routine Hearing Services: Otoscopy Hearing Diagnostic History Taking Pure Tone Audiometry Tympanometry Acoustic Reflex Testing + 3 more
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UKAS 27642 Somerset, GB
DIN EN 14175-3 DIN EN 14175-4 DIN EN 12469 ISO 14644-3 BS EN ISO 14644-1:2015 + 3 more
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Trescal

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DAkkS D-K-15015-01-01 Darmstadt, DE
Salt spray / neutral salt fog test (ISO Technical cleanliness of fluid system co Sound power — survey method (ISO 3746) Environmental noise — determination of s Vibration measuring instruments — test m + 3 more
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UKAS 8188 Sunderland, GB
(PCM) based on HSG 248 Analysts’ Guide (HSG 248)
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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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