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
1,399
Accredited labs
17
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Showing 1–25 of 1,399 labs
Techmetrics
Active
absolute Feuchte
Taupunkttemperatur
Taupunktspiegel
Taupunkttransmitter
Railway bogies — wheelsets and bogies st
+ 3 more
View Profile
Verified
1A CAL
Active
- Gleichspannung
Josephson-Josephson
Multimeter
Quellen > 0,2 V
Spannungsnormale
+ 3 more
20/30 Labs
Active
cartridges, based on HTM 2030
9.201 to 9.212 and BS EN ISO
35 °C/3 days based on HTM 2030
section 9.201 to 9.212, BS EN
ISO 15883-1:2009 6.4.2.3 and
+ 3 more
3-Rath Kalibrier+Prüftechnik
Active
Sound intensity — scanning method (ISO 9
Härteprüfmaschinen
Knoop- und
70 HR15N
42 HR30N
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3D Service
Active
Münchingen, D
CAM 2, Software von
Holos, Software von Carl
Metrologic, Software
von Metrologic Group ≤ 9090 mm
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4-RAIL Services
Active
(HSG 248) – 2021
E203 based on HSG 248
(PCM) based on HSG 248
E200 based on HSG 248
E201 based ISO 14966:2019 using
+ 1 more
8tree Scanner / 0 mm bis 100 mm
Laterale Größe von
Tiefenmaß/
-unterstand
(Härteskalen HV0,01
ISO 4832
ISO 4833-1
ISO 18593
DIN EN ISO 6888-1
DIN EN ISO 11290-1
+ 3 more
A.Q.C. SRL
Active
ASTM E 415 21
DIN EN 10164
DIN EN ISO 3651-1
ASTM A 262-15
ASTM G48-11
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-95 kPa ≤ P < -1 kPa -1 kPa ≤ P < -100 P
5 kPa ≤ P < 80 kPa 80 kPa ≤ P ≤ 120 kPa
0 MPa ≤ P ≤ 2 MPa 2 MPa < P ≤ 20 MPa 20
Punto triple del agua (0,01 °C)
Punto de fusión del hielo (0,00 °C) -80
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Absolutdruck p
abs
positiver Überdruck
Positiver Überdruck p e
Überdruck p
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ABLE Calibration Services
Active
TEMPERATURE
PRESSURE
AC VOLTAGE (continued)
DC VOLTAGE
Generation only
+ 3 more
ABP Associates
Active
(HSG 248) – 2021
staining based on HSG 248
QP23 based on HSG 248
(PCM) based on HSG 248
ACM PHARMA
Active
DIN EN 17126
DIN EN 13624
DIN EN 13727
DIN EN ISO 11930
DIN EN 14476
+ 3 more
(HSG 264, 2012)
HSG 227 (2004)
(HSG 248) – 2021
(PCM) based on HSG 248
AD-LAB - Brussieu
Active
NF X 43-269
NF X 43-050
NF X43-269 – Annexe
NF X43-050 (parties utiles de la norme)
NF X43-050 (useful parts of the standard
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