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
🇩🇪 DIN EN 13715 🇬🇧 BS EN 13715 🇫🇷 NF EN 13715 🇮🇹 UNI EN 13715 🇪🇸 UNE EN 13715 🇳🇱 NEN EN 13715 🇩🇪 DIN EN 13296 🇬🇧 BS EN 13296 🇫🇷 NF EN 13296 🇮🇹 UNI EN 13296 🇪🇸 UNE EN 13296 🇳🇱 NEN EN 13296
1,632 Accredited labs
19 Countries

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Institut Technique des Gaz et de l'Air - ITGA - Site de Saint Etienne

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COFRAC 1-1761 Saint Etienne, FR
NF X 43-269 NF X 43-007 NF X 46-032 NF X 43-014 NF X 43-259 + 3 more
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Institut Technique des Gaz et de l'Air - ITGA - Site de Saint Grégoire

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COFRAC 1-5967 Saint-Gregoire Cedex, FR
NF X 43-269 EN 13087-2 DIN EN ISO 16017-1 NF X 43-007 DIN EN ISO 16017-2 + 3 more
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KALITEO

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COFRAC 1-5835 Gasny, FR
DIN EN 27888 NF X 31-615 (Uniquement DIN EN ISO 10523
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L3A LAB

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COFRAC 1-0978 Malakoff, FR
NF X 43-050 NF X 43-269 - Annexe K NF X43-050 (parties utiles de
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LAB-EXPERT

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COFRAC 1-6752 Ivry Sur Seine, FR
NF X43-050 (parties utiles de la NF X 43-050 NF ISO 22262-1 (parties utiles
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LABOCEA - Site de Brest

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COFRAC 1-7014 Plouzane, FR
DIN EN 13346 CEN / TS 14235 NF T 90-412 DIN EN ISO 7899-1 DIN EN 12880 + 3 more
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LABOCEA - Site de Ploufragan

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COFRAC 1-7015 Ploufragan, FR
NF U47-210 NF U47-036-1 NF U47-108 NF U47-100 NF U47-107 + 3 more
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LABORATOIRE DEP ANALYSES RECHERCHES

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COFRAC 1-0871 Coulounieix-Chamiers, FR
DIN EN ISO 17294-2 DIN EN ISO 14403-2 DIN EN ISO 10304-1 NF-T 90-101 NF T90-015-1 + 3 more
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LABORATOIRE DEPARTEMENTAL D'ANALYSES DE GIRONDE

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COFRAC 1-1466 Pessac Cedex, FR
NF V08-106 NF T 90-412 NF EN ISO 7887 – VDE 414-9-11 DIN EN ISO 7899-1 + 3 more
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LABORATOIRE DEPARTEMENTAL D'ANALYSES ET DE RECHERCHE (L.D.A.R.)

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COFRAC 1-0551 Laon Cedex, FR
DIN ISO 11466 NF X31-120 DIN EN ISO 11885 NF X31-147 DIN EN 16175-1 + 3 more
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LABORATOIRE DU COMMISSARIAT DES ARMEES (LABOCA)

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COFRAC 1-1046 Les Ponts De Ce, FR
NF V08-401 DIN EN ISO 6888-2 DIN ISO 16649-2 BS ISO 15214:1998 NF V08-409 + 3 more
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LABORATOIRE ECCI

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COFRAC 1-1105 Serres-Castet, FR
DIN EN 10002-1 ASTM E8/E 8M ASTM A 370 NF EN ISO 6892-1 (méthodes A1, A2 et DIN EN 2002-001 + 3 more
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LABORATOIRE ICARE

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COFRAC 1-1021 Saint Beauzire, FR
ISO 14698-1 DIN EN ISO 17141 DIN EN 12469 DIN EN ISO 11138-2 DIN EN ISO 11737-2 + 3 more
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LABORATOIRE KEYBIO - LA CIOTAT

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COFRAC 1-6990 La Ciotat, FR
DIN EN 13624 DIN EN 13727 DIN EN ISO 11930 DIN EN 17387 DIN EN ISO 22717 + 3 more
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LABORATOIRE LHYAL

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COFRAC 1-1979 Limoges, FR
NF V 04-407 DIN EN ISO 6888-1 NF V04-403 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 + 3 more
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LABORATOIRE MIDAC

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COFRAC 1-0019 Loos Lès Lille, FR
DIN EN 14562 DIN EN ISO 16212 DIN EN 14349 DIN EN ISO 18416 DIN EN 14563 + 3 more
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LABORATOIRES POURQUERY

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COFRAC 1-1847 Lyon 7Eme, FR
DIN EN 10002-1 BS ISO 9227:2022 DIN EN ISO 643 EN ISO 12624 DIN EN 10045-1 + 3 more
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LABSUD7

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COFRAC 1-7045 Sete, FR
NF X 43-050 (parties utiles NF X 43-269 NF X 43-050
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LABÔNOR – Site de LA CAPELLE

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COFRAC 1-1734 La Capelle, FR
DIN EN ISO 8968-1 DIN 19662 DIN EN ISO 5534 DIN EN ISO 8968-4 DIN EN ISO 5764 + 3 more
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LDA 13

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COFRAC 1-1290 Marseille Cedex 13, FR
NF V08-106 DIN EN ISO 17294-2 NF T 90-412 NF U47-105 DIN EN ISO 7899-1 + 3 more
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LDA DE L'AIN - Site Agro-Alimentaire

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COFRAC 1-2193 Bourg-En-Bresse Cedex 9, FR
DIN EN ISO 17604 NF V08-401 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN ISO 16649-2 + 3 more
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LEPBI - Laboratoire d'Expertise des Polluants du Bâtiment et de l'Industrie

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COFRAC 1-2350 Villepinte, FR
NF X 43-269 DIN 51750-3 NF X 46-032 NF EN 15934 – NF X 43-269 – Annexe K + 3 more
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LHEM

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COFRAC 1-0053 Gonfreville L'Orcher, FR
NF EN ISO 6892-1 Méthode B DIN EN ISO 6508-1 ISO 4969 DIN EN 10002-1 DIN EN ISO 643 + 3 more
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LIDAL

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COFRAC 1-0600 Annecy, FR
NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 DIN EN ISO 6888-2 DIN ISO 16649-2 + 3 more
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LNE - Laboratoires de Trappes

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COFRAC 1-0606 Trappes Cedex, FR
DIN EN ISO 2505 ISO 18553 AMD 1 DIN EN 12099 ISO 13480 ISO 6964 + 3 more
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Industries

Railway rolling stock manufacturers Wheelset component suppliers Railway depot maintenance facilities Infrastructure maintenance organizations Rail research and development organizations

Related Standards

  • EN 13715 Railway applications - Wheel sets and bogies - Technical file requirements for wheels
  • EN 13296 Railway applications - Wheelsets and bogies - Wheels - Technical specifications for wheels
  • EN 14363 Railway applications - Testing and Simulation for the acceptance of running characteristics of railway vehicles - Running behaviour and stationary tests

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