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
1,399 Accredited labs
17 Countries

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Ahlborn Meß- und Regelungstechnik

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DAkkS D-K-19342-01-02 Holzkirchen, DE
Taupunkttemperatur Railway braking — urban guided transport Temperaturtransmitter Widerstandssensor *) –30 °C + 3 more
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Air Surveys

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UKAS 0553 Wandsworth, GB
(HSG 248) – 2021 APP 7 based on HSG 248 (PCM) based on HSG 248 (PCM) based on HSG 248) APP 15 based on HSG 248 + 2 more
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Airborne Environmental Consultants

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UKAS 0232 Manchester, GB
(HSG 264, 2012)
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Airborne Environmental Consultants

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UKAS 2054 Manchester, GB
(HSG 248) – 2021 AEC 1 based on HSG 248 (PCM) based on HSG 248 AEC 6 based on HSG 248
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Airbus Defence and Space

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DAkkS D-K-18731-01-01 Manching, DE
- Gleichspannung / Messgeräte 1 µV Quellen > 1 V + 3 more
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Airsafe Analytical

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UKAS 4376 Alton, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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Airtech Analysis

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UKAS 0681 Writtle, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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Akustikberatung Wiemers

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DAkkS D-PL-11244-01-01 Berlin, DE
EN 14033-3 ISO 9611 ISO 11201
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Alfred H Knight Energy Services

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UKAS 1765 Kilmarnock, GB
BS ISO 18283:2022 ASTM D2234 (location E) ASTM D2013 (location B) BS ISO 5074:2015; and ASTM D409:2016 + 3 more
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Allgäuer Messzentrum

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DAkkS D-K-19562-01-01 Kaufbeuren, DE
Durchmesser 1 mm 510 mm Rundheitsabweichung 1 mm Parallelitätsabweichung Rundheitsabweichung + 3 more
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Allied Aerosystems

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UKAS 0666 Pontypridd, GB
DC Resistance 2.92 mm systems (continued) DC VOLTAGE AC CURRENT DC Power + 3 more
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Allium Environmental

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UKAS 6093 Scorrier, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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Allium Environmental

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UKAS 0212 Redruth, GB
(HSG 264, 2012)
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Ambulanzzentrum des UKE GmbH Fachbereich Labormedizin

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DAkkS D-ML-19804-01-00 Hamburg, DE
Cyclosporin A Everolimus FK 506 (Tacrolimus) Sirolimus 6-Methylmercaptopurin + 3 more
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Ambulanzzentrum UKSH Genetisches MVZ Lübeck/Kiel Humangenetik

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DAkkS D-ML-13314-03-00 Lübeck, DE
Fra(X)-Syndrom, FXTAS (FMR1) Friedreich Ataxie (FXN) DRPLA (ATN1) Huntington Krankheit (HTT) Huntington-like (TBP, JPH3) + 3 more
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Ambulanzzentrum des UKSH gemeinnützige GmbH Universitäres MVZ Kiel Pädiatrische Endokrinologie und Diabetologie Kinderendokrinologisches Labor

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DAkkS D-ML-13314-04-00 Kiel, DE
Aldosteron 11-Desoxycorticosteron 11-Desoxycortisol 17-Hydroxypregnenolon 17-Hydroxyprogesteron + 3 more
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Amentum Clean Energy

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UKAS 1011 Warrington, GB
OM H-3 based on ISO 9698:2019 ISO 9696:2017 and ISO (HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248.
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UK

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UKAS 0422 Warrington, GB
a) BS 7270:2006 b) BS 3518-3:1963 (Withdrawn) ASTM E1820-18ae1 (Withdrawn) ISO 6892-2 BS EN ISO 204 + 2 more
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Amphenol Advanced Sensors Germany

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DAkkS D-K-19592-01-00 Pforzheim, DE
Tensile testing of metallic materials (I Feuchtemessgrößen 15 % *) > 30 % Railway bogies — wheelsets and bogies st Temperaturmessgrößen + 3 more
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Amstech Inspections & Testing

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UKAS 0350 Newhaven, GB
Appendix 5 of HSG 227 (2004))
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Amstech Inspections and Testing

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UKAS 2713 Newhaven, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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Anchem Laboratories

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UKAS 0934 Neath, GB
(HSG 248) – 2021 ANC/AS/2 based on HSG 248 DIN EN 14791 IEC 60519-11 DIN EN 13284-1 + 3 more
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Anchem Laboratories

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UKAS 0165 Neath, GB
(HSG 264, 2012)
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Andersen Caledonia

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UKAS 4147 Bellshill, GB
requirements of HTM 01-06 Part E 35 °C/3 days based on HTM 2030 Part E, WHTM 01-06 Part E & BS EN ISO 15883-4 using R2A and Part E, HTM 0106 Part E, WHTM 01- + 3 more
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Applus Netherlands

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RvA I251 Rotterdam, NL
DIN EN 16407-1 BS EN ISO 10675-1 ÖNORM EN ISO 17636-1 NEN-EN 12732 ÖNORM EN ISO 17636-2 + 3 more
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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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