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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DAkkS Professional D-K-22606-01-01 Winnenden, DE
absolute Feuchte Taupunkttemperatur Taupunktspiegel Taupunkttransmitter Railway bogies — wheelsets and bogies st + 3 more
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DAkkS D-K-15115-01-00 Kassel, DE
- Gleichspannung Josephson-Josephson Multimeter Quellen > 0,2 V Spannungsnormale + 3 more
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UKAS 4236 Northampton, GB
cartridges, based on HTM 2030 9.201 to 9.212 and BS EN ISO 35 °C/3 days based on HTM 2030 section 9.201 to 9.212, BS EN ISO 15883-1:2009 6.4.2.3 and + 3 more
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DAkkS D-K-15158-01-00 Haiger, DE
Sound intensity — scanning method (ISO 9 Härteprüfmaschinen Knoop- und 70 HR15N 42 HR30N + 3 more
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DAkkS D-K-18164-01-00 Partenstein, DE
Metrologic, Software von Metrologic Group ≤ 9090 mm CAM 2, Software von Münchingen, D Chur, CH, ≤ 5000 mm + 3 more
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UKAS 0173 London, GB
(HSG 264, 2012)
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UKAS 1931 London, GB
(HSG 248) – 2021 E203 based on HSG 248 (PCM) based on HSG 248 E200 based on HSG 248 E201 based ISO 14966:2019 using + 1 more
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UKAS 9372 West Chiltington, GB
(HSG 264, 2012)
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8tree GmbH 8tree Calibration Lab

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DAkkS D-K-21981-01-00 Konstanz, DE
8tree Scanner / 0 mm bis 100 mm Laterale Größe von Tiefenmaß/ -unterstand (Härteskalen HV0,01
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DAkkS D-K-21221-01-00 Altenbuch, DE
Vickers hardness test (ISO 6507) Koordinatenmessgeräte Koordinatenmessger Steuerungssoftware Messvolumen mit einer Metromec CM, Software Raumdiagonale von von Metromec Software ≤ 750 mm + 3 more
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UKAS 9260 Dukinfield, GB
(HSG 264, 2012)
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A.G.A. Lab di Bruno Augusta & C S.n.c.

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ACCREDIA 00819 Grazzanise, IT
ISO 4832 ISO 4833-1 ISO 18593 DIN EN ISO 6888-1 DIN EN ISO 11290-1 + 3 more
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ACCREDIA 00925 Napoli, IT
ASTM E 415 21 DIN EN 10164 DIN EN ISO 3651-1 ASTM A 262-15 ASTM G48-11 + 3 more
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COFRAC 1-2303 Thiant, FR
ASTM E8/E 8M DIN EN 10002-1 ASTM E 21 DIN EN 10002-5 DIN EN ISO 6892-2 + 3 more
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COFRAC 1-6312 Gardanne, FR
DIN EN 27888 DIN EN ISO 10523 DIN EN ISO 7393-2 NF X 31-615 (Uniquement
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COFRAC 1-1249 Fraisses, FR
(BS EN ISO 6892-1: 2019) DIN EN 10002-1 ISO 6892-1 -2009 ASTM E8/E 8M ISO 6892-1 -2016 + 3 more
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ABB AG Kalibrierlaboratorium für Druck, Durchfluss und Temperatur

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DAkkS D-K-12115-01-00 Minden, DE
Absolutdruck p abs positiver Überdruck Positiver Überdruck p e Überdruck p + 3 more
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UKAS 4021 Rogerstone, GB
TEMPERATURE PRESSURE AC VOLTAGE (continued) DC VOLTAGE Generation only + 3 more
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UKAS 4494 Southampton, GB
(HSG 248) – 2021 staining based on HSG 248 QP23 based on HSG 248 (PCM) based on HSG 248
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UKAS 2742 Canvey Island, GB
Analysts’ Guide (HSG 248) (PCM) based on HSG 248
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UKAS 0162 Ashwellthorpe, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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COFRAC 1-6001 Riorges, FR
NF ISO 21438-3 NF X 43-269 NF ISO 21438-1 DIN EN ISO 16017-2 NF X 43-259 + 3 more
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COFRAC 1-6133 Cherbourg-En-Cotentin, FR
NF X 43-269 NF X 43-269 – NF X 43-050 NF ISO 22262-1 (parties utiles ISO 16000-7
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COFRAC 1-7464 Bellegarde, FR
DIN EN 17126 DIN EN 13624 DIN EN 13727 DIN EN ISO 11930 DIN EN 14476 + 3 more
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UKAS 0144 Glasgow, GB
(HSG 264, 2012) HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248
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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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