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
1,632 Accredited labs
19 Countries

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VEGA Environmental Consultants

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UKAS 1634 Whitley Bay, GB
(HSG 248) – 2021 ASB/10 based on HSG 248 (PCM) based on HSG 248 ASB/6 based on HSG 248 BS EN ISO 14644-1:2015 + 3 more
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VERIFICACIÓN Y CALIBRACIÓN

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ENAC LC10.251 Hospitalet de Llobregat, ES
CEM ME009
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VHT Institut für Leichtbau Trockenbau Holzbau

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DAkkS D-PL-19465-01-00 Darmstadt, DE
Myopathie, Nemaline (TyP1, 3-10: ASTM E 23-18 ASTM D 1322 Toxizität UGT1A1-Gen rs3064744, rs414832 DIN EN 1789 + 3 more
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VIRLAB

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ENAC LE131 Asteasu, ES
IEC 60068-2-6 UNE-EN 60068-2-6 UNE-EN 60068-2-27 IEC 60068-2-27 UNE-EN 60068-2-57 + 3 more
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VL Thermo Solutions

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DAkkS D-PL-21133-01-00 Versmold, DE
DIN SPEC 91323 DIN EN 1815 DIN 8959 DIN 8959 Ber. 1
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VSL

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RvA K999 Delft, NL
HCS LF 1 1 HCS LF 2 1 HCS LF 1 3 HCS LF 12 HCS LF 22 + 3 more
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VWR International

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UKAS 0593 Lutterworth, GB
TEMPERATURE parameters and ranges) indicators or recorders WEIGHING INSTRUMENTS
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Vantify

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UKAS 7892 Stoke Prior, GB
Appendix 5 of HSG 227 (2004) (HSG 264, 2012)
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Vectoflow

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DAkkS D-K-21643-02-00 Gilching, DE
am Standort Vectoflow Windtunnel A, Frie Strömungsgeschwindigkeit von Gasen 15 m/s bis > 38 m/s
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Vibtec GmbH Engineering and Testing

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DAkkS D-PL-17716-01-00 Zuzenhausen, DE
VDE 0468-2-2 IEC 60068-2-2 VDE 0468-2-6 IEC 60068-2-6 DIN EN 60068-2-14 + 3 more
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Vier Gas Services GmbH & Co. KG pigsar

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DAkkS D-K-19206-01-00 Dorsten, DE
Durchflussmessgrößen 8 m³/h Volumendurchfluss Q v 9 m³/h bzw. Volumen von strömenden Gasen 12 m³/h 19 m³/h + 3 more
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Vincentius-Diakonissen-Kliniken gemeinnützige AG Zentrallabor

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DAkkS D-ML-13393-01-00 Karlsruhe, DE
Blutbild, kleines (Erythrozyten, Leukozy Erythrozyten Leukozyten Retikulozyten Thrombozyten + 3 more
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Vine Consultant Services

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UKAS 10213 Bishops Stortford, GB
(HSG 264:2012) 5 of HSG 227 (2004))
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Vintec Laboratories

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UKAS 1249 Garston, GB
(HSG 248) – 2021 (PCM) based on HSG 248 P052 based on HSG 248
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Vistec Electron Beam

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DAkkS D-K-18737-01-01 Jena, DE
− Permanentes Laboratorium Positionen und Abstände gleichgerichteter Kanten positionen von Strukturen (Hartschichtmasken) + 3 more
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W H Stephens

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UKAS 7855 Belfast, GB
(HSG 264, 2012)
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WENZEL Metrology

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DAkkS D-K-17723-01-00 Wiesthal, DE
Koordinatenmessgeräte von <7000 mm under-Edge, UK INCA3D, Software von Inspect 3D, Cholet, F + 3 more
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WIKA Alexander Wiegand SE &

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DAkkS D-K-15105-01-00 Klingenberg, DE
Positiver und −1 bar bis −0,03 bar Positiver und negativer (ein- oder mehrgängige > −0,03 bar bis > 0,15 bar bis + 3 more
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WIN Messmittel und Service

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DAkkS D-K-17410-01-01 Korbußen, DE
− Parallelendmaße − Längenmessmittel − Durchmesser − Formabweichung − Gewinde + 3 more
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WSP UK

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UKAS 2538 London, GB
(HSG 248) – 2021 AFC based on HSG 248 (PCM) based on HSG 248 SSA based on HSG 248
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WTLAB

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ACCREDIA 01077 Tribano, IT
IEC 62109-1 IEC 61400-21-1 IEC 62109-2 DIN EN 60598-2-4 DIN EN 60068-2-30 + 3 more
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Waagen-Dienst Kirste

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DAkkS D-K-20130-01-00 Meissen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen verwendete Abkürzungen: 1) In den CMC sind die erweiterten Messu + 2 more
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Waagen-Jöhnk

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DAkkS D-K-19520-01-00 Dätgen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) verwendete Abkürzungen:
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Waagen-Kissling

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DAkkS D-K-19038-01-00 Rimbach, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) verwendete Abkürzungen:
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Waagenfachhandel Hilke

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DAkkS D-K-17685-01-00 Hardegsen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen verwendete Abkürzungen:
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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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