EN 15302
Railway Wheelset Equivalent Conicity Measurement
This test method defines procedures for determining the equivalent conicity of railway wheelsets, a critical geometric parameter that affects vehicle stability, curving behavior, and wear characteristics. Equivalent conicity influences hunting oscillations, lateral forces, and noise generation during operation. The measurement is essential for railway manufacturers, maintainers, and operators to ensure safe and economical wheelset performance across different track geometries. Accreditation ensures consistent, reproducible measurements that support compliance with European interoperability standards and informed maintenance decisions.
What it measures
- Equivalent conicity value of wheelset profiles
- Wheel profile geometry and wear patterns
- Contact angle and friction coefficient relationships
- Stability margin and hunting potential
- Comparative conicity values for different operating conditions
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DIN EN 13715
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BS EN 13715
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NF EN 13715
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UNI EN 13715
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UNE EN 13715
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NEN EN 13715
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DIN EN 13296
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BS EN 13296
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NF EN 13296
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UNI EN 13296
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UNE EN 13296
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NEN EN 13296
1,399
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Polytest Ingenieure
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DIN EN ISO 9934-1
DIN ISO 815-1
DIN ISO 815-2
DIN ISO 4593
DIN EN 50178: 1998
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Poulten Selfe and Lee
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TEMPERATURE
Viscosity constant ‘C’
Reference viscometers:
ASTM D4052 (Digital density
Power Diagnostix Systems
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Impulsladung
Anstiegszeit
Impulsdauer
Wechselspannung 1 V
> 1,1 kV
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Differentialblutbild
Erythrozyten
Hämatokrit
Leukozyten
Retikulozyten
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External (Tip) Diameter
Helix (lead) total deviation (F
GEARS SPUR/HELICAL EXTERNAL (cont’d)
As for Involute Spline Gauges
HbA1c
Automatisches Blutbild
Leukozyten
Normoblasten
Retikulozyten
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Calcium
Bilirubin gesamt
Creatinkinase-Muscle-Brain
TPZ nach Quick
Immunglobulin A
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Vickers hardness test (ISO 6507)
Frost- / Taupunkt- –90 °C
Taupunkttemperatur
Taupunktspiegel, –80 °C
–60 °C
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ProfEC Ventus
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IEC 61400-12 Ed.1 *
IEC 61400-12-1 Ed.3 *
IEC 61400-12-3 Ed.1 *
IEC 61400-12-4 Ed.1 *
IEC 61400-12-5 Ed.1 *
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ISO 6579-1
ISO 15213-2
ISO 11290-1
ISO 7932
F100 based on BS EN ISO
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Pullman Instruments (UK)
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DC CURRENT
Measurement
DC VOLTAGE
AC Current Generation
DC RESISTANCE (cont’d)
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QIMA Testing (Germany)
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DIN EN 16711-2
DIN EN 16711-1
IEC 62321-2
DIN EN 12472
DIN CEN ISO/TS 16179
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QMK
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Gleichspannung 10 mV
Quellen > 120 mV
Vorverstärker > 1,2 V
> 12 V
> 120 V
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QS-Grimm
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Parallelendmaße * 0,5 mm
DIN EN ISO 3650:1999
Zylindrische Normale 1 mm
Innenzylinder *
> 100 mm
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QUALILAB
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EN 12966: 2014 Section 4.5.4
DIN EN 55025: 2018
DIN EN 60068-2-30
(CISPR 25:2002) Section 6
ISO 11452-4: 2020
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ISO 13320
VDE 414-9-11
NF V08-250
ISO 19343
DIN EN ISO 7899-1
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Qopas
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Koordinatenmessgeräte geräte mit einem
Chorus, Help-PJM von
DEA Hexagon Metrology
S.p.A., Turin, I
Associates EMS Products, ≤ 1500 mm
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Quality Consultants (NI)
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(HSG 248) – 2021
(PCM) based on HSG 248
QSOP 03 based on HSG 248
Quality in Progress Srls
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ISO 18787
DIN EN ISO 6888-1
DIN EN ISO 10304-1
ISO 4832
DIN EN ISO 18593
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ISO 4832
DIN EN ISO 5764
ISO 16649-2
ISO 18593
DIN EN ISO 6579-1
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R-TECH Services
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ÖNORM EN ISO 17637
BS EN ISO 15614-1:2017
ASTM A 370
DIN EN 10080
BS EN ISO 9015-1:2011
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