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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DIN EN ISO 10666 DIN 53438-3 rs738409 DIN EN 1382 DIN EN 1383 + 3 more
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UKAS 4026 Meopham, GB
(HSG 248) – 2021 (PCM) based on HSG 248 (HSG 264, 2012)
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HIGHVOLT Prüftechnik Dresden GmbH Kalibrierlaboratorium

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DAkkS D-PL-21561-01-00 Brühl, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-4: 2012 VDE 0847-4-4 IEC 61000-4-5: 2005 + 3 more
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DIN EN 442-2 DIN EN 16430-1 DIN EN 16430-2 DIN EN 16430-3 DIN 4703-3 + 3 more
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COFRAC 1-6221 Strasbourg, FR
NF X43-050 (parties utiles de NF X 43-050 NF X43-050 (parties utiles de la
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UKAS 1105 Nuneaton, GB
IEC/CISPR 25 DIN EN 55025: 2018 ISO 7637-2 ISO 11451-1 IEC/CISPR 12 + 3 more
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UKAS 0642 Ross-on-Wye, GB
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Härte *) 20 HRA Härtevergleichsplatten 20 HRB nach Rockwell Verfahren 20 HRC 40 HRD 60 HRF + 3 more
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Hartford Steam Boiler UK

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UKAS 8452 Manchester, GB
BS 2790 - Specification for the design a BS 1113 - Specification for the design a BS EN 13480 Parts 1 to 8 - Metallic EN 13445 – Parts 1 to 10 Unfired pressur BS EN ISO 15614 and ASME IX + 3 more
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Harzklinikum Dorothea Christiane Erxleben GmbH Zentrum für Laboratoriumsdiagnostik

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UKAS 4659 Newry, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) Executive guides HSG 264 (2012)
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Henkel AG & Co. KGaA Corporate Scientific Solutions

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DAkkS D-PL-17150-02-04 Düsseldorf, DE
DIN EN 13727 DIN EN 13624 DIN EN 17126 DIN EN 1040 DIN EN IEC 60601-2-75 + 3 more
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Hensel Mess-, Regel- und Prüftechnik

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DAkkS D-K-15122-01-00 Cunewalde, DE
Absolutdruck p abs > 41 bar Negativer und positiver Überdruck + 3 more
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DAkkS D-K-19237-01-02 Darmstadt, DE
Masse * 1 mg konventioneller 2 mg Wägewert/ Masse > 5 mg 10 mg + 3 more
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Hexagon Metrology GmbH Hexagon Calibration Services

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Gelenkarm- Koordinatenmessgeräte mit taktiler Antastung einem Durchmesser ≤ 4500 mm Lasertracker Prismatische Werkstücke Koordinatenmessg + 3 more
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Heywood Williams Components

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UKAS 9868 Daventry, GB
DIN EN 1026 DIN EN 12046-2 BS 6375-1:2015 + A1:2016 and the DIN EN 1027 DIN EN 1629 + 3 more
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Hohenstein India Pvt.

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DAkkS D-PL-21147-01-01 Haryana, IN
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DIN 53160 DIN 54034 DIN 54056 DIN EN 20105-A02 DIN EN 20105-N01 + 3 more
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Home Counties Asbestos

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UKAS 24561 Hertford, GB
(HSG 264, 2012)
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Hoppesack Mess- und Regeltechnik Vertriebs

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DAkkS D-K-15198-01-00 Hanau, DE
Taupunkttemperatur thermometer, -80 °C bis Railway braking — urban guided transport > -35 °C bis Temperatur- −35 °C bis + 3 more
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Horiba Europe

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0,6 bar ver Überdruck p e * Absolutdruck p abs 100 mbar > 70 mbar Gaskonzentration + 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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