UIC 644

Railway Coach Bogie Behavior Assessment

This standard specifies the behavior and performance requirements for Y25 bogie type coaching stock bogies, focusing on derailment resistance, curving performance, and stability characteristics. It provides test methods and acceptance criteria for evaluating bogie performance through simulation, calculation, and track testing to ensure safe operation across varying track geometries and speeds. Compliance verification is mandatory for coach manufacturers, bogie suppliers, and infrastructure operators to maintain interoperability and prevent accidents. Accredited testing ensures comprehensive evaluation against standardized criteria, reducing operational risks and supporting evidence-based vehicle certification.

What it measures

  • Derailment coefficient and safety margin against derailment
  • Lateral and vertical wheel loads on curves
  • Curve-climbing behavior and stability
  • Dynamic response to track irregularities and switches
  • Forces on bogie frame and guidance components
🇩🇪 DIN EN 14363 🇬🇧 BS EN 14363 🇫🇷 NF EN 14363 🇮🇹 UNI EN 14363 🇪🇸 UNE EN 14363 🇳🇱 NEN EN 14363
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COFRAC 1-2416 La Ciotat, FR
DIN EN 12469 NF S 90-351 NF X 44-201 (Octobre 1984) pour PSM BS EN ISO 14644-1:2015 ISO 14644-3
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EP EHRLER PRÜFTECHNIK ENGINEERING

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DAkkS D-K-21444-01-01 Niederstetten, DE
Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Railway brakes — disc brake pads (UIC 54 − Durchfluss von Gasen + 3 more
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ACCREDIA 00253 Conselve, IT
DIN CEN ISO 15216-2 ISO 19250 AOAC 2012.01 2016 DIN EN ISO 15587-1 EPA 300.1 1997 + 3 more
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EQUIPOS NUCLEARES, S.A., S.M.E.

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ENAC LE1853 Maliaño, ES
UNE-EN ISO 6892-1 DIN EN 10002-1 ASTM E 8 ASTM E 208 ASTM E208-06 + 3 more
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ERC Testing

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UKAS 23361 Leigh, GB
DIN EN 1863-1 BS EN ISO 10077-1:2006 published 2024) for BS EN DIN EN 1863-2 BS EN ISO 10077-2:2017 + 3 more
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ERGO Umweltinstitut

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DAkkS D-PL-14613-01-03 Dresden, DE
DIN ISO 10381-5 DIN ISO 18400-102 DIN ISO 18400-104 DIN ISO 18400-105 DIN ISO 18400-203 + 3 more
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ETAS

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DAkkS D-K-19158-01-00 Stuttgart, DE
- Gleichspannung Quellen und Messgeräte > 1 mV bis > 10 mV bis > 100 mV bis > 10 V bis + 3 more
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COFRAC 1-1147 Sainte-Croix-En-Plaine, FR
DIN EN ISO 6888-1 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN ISO 16649-2 DIN EN ISO 19020 + 3 more
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COFRAC 1-1592 Bagneux, FR
NF X 43-269 NF X 43-050 NF X43-050 (parties utiles de la NF X 46-032 NF X46-031
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COFRAC 1-1593 Henin-Beaumont, FR
NF X 43-269 – Annexe K NF X 43-050 NF X43-050 (parties utiles de la
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COFRAC 1-5597 Nantes Cedex 03, FR
NF X43-050 (parties utiles de NF X 43-050 NF X 43-269 - Annexe K NF EN 14346 – NF X43-050 (parties utiles de la
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COFRAC 1-5922 Vergeze, FR
NF X 43-269 – Annexe K NF X 43-050 NF X 43-269 - Annexe K NF X43-050 (parties utiles de la
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EUROFINS ANALYSES POUR LE BATIMENT SUD-EST

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COFRAC 1-1591 Saint Etienne, FR
NF X 43-269 - Annexe K NF X 43-269 – Annexe K NF X 43-050 NF X43-050 (parties utiles de la NF X43-050 (parties + 1 more
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EUROFINS ANALYSES POUR LE BATIMENT SUD-OUEST

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COFRAC 1-5840 Gradignan, FR
NF X 43-269 - Annexe K NF X 43-269 – Annexe K NF X 43-050 NF X43-050 (parties utiles de la NF ISO 21363
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ENAC LE2182 Coslada, ES
UNE 64106 BS ISO 6731:2010 UNE-EN ISO 712 UNE-EN ISO 5534 ISO 13580 + 3 more
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EUROFINS BIOLAB

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ACCREDIA 00028 Vimodrone, IT
ISO 6341 ISO 7346-1 ISO 8692 DIN EN 13727 DIN EN 1657 + 3 more
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EUROFINS CONTROL AMBIENTAL Y ECOGESTOR, S.L. (Unipersonal)

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ENAC LE486 Llanera, ES
UNE-EN ISO 10304-3 UNE-EN ISO 10304-1 UNE-EN ISO 6878 UNE-EN 1484 SM 10200 H + 3 more
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EUROFINS HYDROLOGIE NORD

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COFRAC 1-2202 Douai, FR
NF T90-111 DIN EN ISO 14403-2 NF T 90-412 DIN EN ISO 7899-1 NF-T 90-029 + 3 more
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ENAC LE268 Castellón de la Plana, ES
UNE 77061 UNE-EN ISO 15681-2 SM 4500-NH3 F UNE-EN ISO 8467 UNE-EN ISO 6878 + 3 more
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COFRAC 1-2243 Vennecy, FR
DIN EN ISO 21528-2 DIN EN ISO 6888-1 0.95) based on BS ISO 21527-2:2008 DIN EN ISO 6888-2 DIN ISO 16649-2 + 3 more
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COFRAC 1-6881 Les Milles, FR
DIN ISO 11665-4 DIN EN ISO 7932 DIN 53483-2 DIN EN ISO 15213-2 NF V08-050 + 3 more
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EUROFINS LABORATOIRE NORD

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COFRAC 1-2241 Douai Cedex, FR
DIN EN ISO 6888-1 DIN EN ISO 21528-2 DIN EN ISO 6888-2 DIN ISO 16649-2 NF V08-054 + 3 more
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COFRAC 1-1830 Nantes, FR
DIN EN ISO 21528-1 NF V08-401 DIN ISO 16649-1 DIN EN ISO 6888-1 DIN EN ISO 21528-2 + 3 more
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ACCREDIA 00522 Castelnovo di Sotto, IT
ISO 6888-1 ISO 18787 ISO 4831 ISO 11731 DIN EN ISO 6888-3 + 3 more
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COFRAC 1-5943 Nantes, FR
NF X 43-269 NF X 43-050 ISO ISO 16000-7
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Industries

Coach and passenger vehicle manufacturers Bogie and suspension system suppliers Railway operators and depot maintenance Track infrastructure and maintenance organizations Vehicle type approval and certification bodies

Related Standards

  • UIC 518 Railway applications — Tests for the acceptance of running characteristics of railway vehicles
  • EN 14363 Railway applications — Running gear — Testing and validation of running behaviour and safety
  • UIC 505-1 Railway vehicles — gauge limits — Part 1: Rolling stock

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