Scope
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
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cartridges, based on HTM 2030
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35 °C/3 days based on HTM 2030
section 9.201 to 9.212, BS EN
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E203 based on HSG 248
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TEMPERATURE
PRESSURE
AC VOLTAGE (continued)
DC VOLTAGE
Generation only
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HSG 227 (2004)
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ALS Laboratories (UK)
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ISO 12966-2
AM/C/108 based on BS EN ISO
BS 684 2.14:2001
BS EN 288-Part 9 :1999
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QOP03 based on HSG 248
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AS International Corporation
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ISO 5983-1:2005/Cor.1:2008, ISO20483:201
07L.1.07 based on ISO 6865:2001
ISO 712
07L.1.02 based on ISO 6496:1999,
ISO 12966-2
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the guidance of GPG 14
PERSONAL DOSE EQUIVALENT:
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Absolute Calibration
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DC Resistance
CFH-Gen, Macula-Degeneration
DC RESISTANCE (continued)
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Appendix 5 of HSG 227
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ISO 7171
ISO 354
BS EN ISO 10140-3:2021
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