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
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Esenwein

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DAkkS D-K-15168-01-00 Hochdorf, DE
/ Messgeräte > 220 mV Quellen > 0,2 V 120 V 200 V + 3 more
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UKAS 8007 Corringham, GB
(HSG 248) – 2021 (PCM) based on HSG 248 TP03 based on HSG 248
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Eton Environmental Group

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UKAS 2734 Darlington, GB
(HSG 248) – 2021 TP005, based on HSG 248 (PCM) based on HSG 248
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Eurofins Chemtest

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UKAS 2183 Newmarket, GB
staining based on HSG 248. (PCM) based on HSG 248 (HSG 248) – 2021 DIN EN 12457-2 DIN EN 12457-3
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UKAS 0452 Bideford, GB
AC CURRENT AC VOLTAGE (continued) Measurement (continued) DC CURRENT Generation (continued) + 3 more
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Eurofins Electrical & Electronic UK

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UKAS 1574 York, GB
IEC 61000-6-1 IEC 61000-4-29: 2000 DIN EN 62233 IEC 61000-4-11: 2004 DIN EN 61000-4-12 + 3 more
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UKAS 2262 Ipswich, GB
ISO 6579-1 ISO 6888-1 ISO 16649-2 ISO 11290-1 1) AM/M/11-2 based on BS EN + 3 more
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UKAS 9659 Grimsby, GB
Method 15.2 based on BS EN ISO ISO 15213-2 Method 9.8 based on BS EN BS EN Method 5.11 based on BS EN ISO Method 4.3 based on BS EN ISO + 3 more
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Eurofins Food Testing UK

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UKAS 2622 Linlithgow Bridge, GB
ISO 6579-1 ISO 4832 EUMM 3.03 based on BS EN EUMM 3.07 based on BS EN ISO BS ISO 21528-2:2017 + 3 more
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UKAS 0342 Wolverhampton, GB
ISO 712 ISO 4833-1 on BS EN ISO 1736:2008 ISO 21528-2 BS ISO 4832:2006 + 3 more
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DAkkS D-ML-17481-01-01 Gelsenkirchen, DE
Thrombozytenfunktion Agomelatin Amisulprid (Psychopharmaka) Amitriptylin (TZA) Aripiprazol (Neuroleptika) + 3 more
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Evangelisches Klinikum Niederrhein Laboratoriumsmedizin

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Glykohämoglobin A1C (HbA1c) Basophile Granulozyten Eosinophile Granulozyten Erythrozytenverteilungsbreite (RDW) + 3 more
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Evangelisches Krankenhaus Oberhausen GmbH Institut für Laboratoriumsmedizin und Klinische Mikrobiologie

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DAkkS D-ML-18340-01-00 Oberhausen, DE
Blutzellen Basophile Granulozyten Basophile Granulozyten, Eosinophile Gran Eosinophile Granulozyten, Erythrozyten, Basophile Leukozyten, absolut + 3 more
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Evolution Environmental

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UKAS 9661 Teston, GB
(HSG 264, 2012)
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Evonik Operations

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DAkkS D-K-21594-01-00 Hanau, DE
Taupunkttemperatur Railway braking — urban guided transport Widerstandssensor *) Edelmetall- und standssensor + 3 more
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F.S. Fehrer Automotive

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DAkkS D-PL-21199-01-01 Kitzingen, DE
DIN EN ISO 1798 DIN EN ISO 1856 Myopathie, Nemaline (TyP1, 3-10: DIN EN ISO 14125 DIN EN ISO 179-1 + 3 more
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FCBA - Bordeaux

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COFRAC 1-0201 Bordeaux, FR
DIN EN 947 ISO 24339 DIN CEN TS 15119-2 DIN EN ISO 3741 NF P 20-501 + 3 more
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FGH Engineering & Test

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DAkkS D-PL-12110-01-00 Mannheim, DE
IEC 62271-1: 2017-07 IEC 62271-100: 2021 IEC 62271-108 IEC 62271-110 VDE 0115 + 3 more
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FGQ-Control GmbH Kalibrierdienst für mechanische, elektrische und physikalische Messgrößen

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DAkkS D-K-19502-01-01 Furtwangen, DE
Frequenz - Gleichspannung Spannungsquellen 5 µV 1 mV Messgeräte > 10 mV + 3 more
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FILK Freiberg Institute g

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DAkkS D-PL-17362-01-01 Freiberg, DE
DIN ISO 48-4 ISO 21527-1 ISO 21527-2 DIN EN ISO 527-3 rs2066844 + 3 more
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FRAMATOME - Saint-Marcel

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COFRAC 1-6514 Saint-Marcel, FR
DIN EN ISO 6507-1 DIN EN ISO 643 NF EN ISO 6520-1 DIN EN ISO 17639 NF EN ISO 6520-2 + 3 more
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FREMAP, MUTUA COLABORADORA CON LA SEGURIDAD SOCIAL Nº 61

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ENAC LC10.004 Majadahonda, ES
CEM DI-013 UNE 17-710-78
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FUNDACION TEKNIKER

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ENAC LC10.018 Eibar, ES
EURAMET CG-2 CEM DI-014 CEM DI-037 UNE-EN ISO 2178 UNE-EN ISO 16809 + 3 more
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FUNDACIÓN CENTRO TECNOLÓGICO DE MIRANDA DE EBRO.

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ENAC LE2003 Miranda de Ebro, ES
UNE-EN 2557 UNE-EN 2002-001 ISO 6508-1 UNE-EN 2559 ASTM B557 + 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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