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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Normec VRO

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RvA I203 Geldermalsen, NL
#EN ISO 5164:14 # EN 116-97 NEN 4400-1 # ISO 13736 #ISO 6618 + 3 more
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Normec Valitech

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DAkkS D-K-18539-01-00 Falkensee, DE
Tensile testing of metallic materials (I positiver Überdruck -0,01 bar Absolutdruck p abs Taupunkttemperatur + 3 more
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Norsonic-Tippkemper

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DAkkS D-K-15132-01-00 Oelde, DE
Akustik Übertragungsmaß von Messmikrofonen Messmikrofonen mit Dämpfung eines + 3 more
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North Star Environmental

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UKAS 7691 Shotton, GB
(HSG 248) – 2021 NSDOC 47 based on HSG 248 staining based on HSG 248. (PCM) based on HSG 248
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Not One Iota

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UKAS 8998 Portadown, GB
(HSG 248) – 2021 SOP-12, based on HSG 248 staining based on HSG 248 (PCM) based on HSG 248
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Nuclear Restoration Services

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UKAS 0573 Thurso, GB
AIR KERMA RATE AMBIENT DOSE HBs-Antigen (Hepatitis B-Surface RESPONSE: PERSONEL DOSE
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Nuovo Istituto Italiano Sicurezza dei Giocattoli Srl - in breve Istituto Italiano Sicurezza dei Giocattoli Srl - in breve IISG Srl

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ACCREDIA 00271 Cabiate, IT
ISO 11423-1 DIN EN 17394-2 ISO 6703-1 EPA 160.1 1971 ISO 14189 + 3 more
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O.C. Consulting (UK)

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UKAS 0282 Harlow, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248
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OCA INSPECCIÓN, CONTROL Y PREVENCIÓN, S.A. (Unipersonal) (OCA GLOBAL)

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ENAC LE2316 Pozuelo de Alarcón, ES
UNE-EN 14385 UNE-EN 15259 UNE-EN 13211 BS ISO 9096:2017 UNE 77216 + 3 more
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OHEC (uk)

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UKAS 0394 Prestwich, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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OHS

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UKAS 21882 Manchester, GB
(HSG 264, 2012)
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ONNEKEN Meß- und Prüftechnik

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DAkkS D-K-15218-01-00 Friedrichsdorf (Taunus), DE
Druck 0,03 bar Absolutdruck Pabs > -0,3 bar > 3,0 bar > −0,02 bar + 3 more
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ONTRAS Gastransport

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DAkkS D-K-20502-01-01 Leipzig, DE
Positiver und negativer Positiver Überdruck p e −0,95 bar > 2,5 bar > 25 bar + 3 more
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OPTOLUTION Messtechnik

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DAkkS D-K-20427-01-00 Lörrach, DE
− Wärmezähler Durchflusssensoren als Teilgeräte von Wärme- und Kältezählern: + 3 more
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OTECH Environnement

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COFRAC 1-5809 Bruay La Buissiere, FR
DIN EN 27888 NF X 31-615 (Uniquement DIN EN ISO 10523
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Ober Berg & Lukowiak

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DAkkS D-PL-12032-01-02 Hüllhorst, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847-4-3 IEC 61000-4-4: 2012 + 3 more
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Oberndorfer Präzisions-Werk

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DAkkS D-K-15148-01-00 Oberndorf am Neckar, DE
Lehrdorne Railway maintenance — track geometry (EN > 100 mm Lehrringe 10 mm Rundheitsabweichung + 2 more
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Oelze Präzisions-Meßzeugfabrik

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DAkkS D-K-15021-01-01 Aschaffenburg, DE
Railway brake — magnetic track brakes (U − Ebenheit − Geradheit − Winkelnormale auch als Vor-Ort-Kalibrierung + 3 more
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Offshore Renewable Energy Catapult

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UKAS 2769 Blyth, GB
IEC 61400-23 ASTM G73 (2012) IEC 60885-3, 2.4.1 IEC 60502-2 IEC 60840 + 3 more
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Omgevingsdienst Midden- en West-Brabant

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RvA I073 Tilburg, NL
ISO 11819-1 (N 2 O) 0,000008 DIN EN ISO 16911-1 AG2 and IS EN 15259:2007 DIN EN 14790 + 3 more
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One Scientific

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UKAS 2048 Avonmouth, GB
ISO 6888-1 ISO 21528-2 BS ISO 4832:2006 ISO 4833-1 ISO 6579-1 + 3 more
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Optical Test & Calibration

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UKAS 0286 Bradford, GB
DC Resistance DC CURRENT DC VOLTAGE DC RESISTANCE (cont’d)
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Oracle Solutions Asbestos

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UKAS 4600 Kettering, GB
(HSG 264, 2012)
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Ostthüringische Materialprüfgesellschaft für Textil und Kunststoffe mbH Rudolstadt (OMPG)

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DAkkS D-PL-11118-01-01 Rudolstadt, DE
DIN EN 1264-5 DIN EN 13647 DIN EN 71-10 DIN EN 50642 DIN EN ISO 14184-2 + 3 more
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Oxford Technical Solutions

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UKAS 4647 Upper Heyford, GB
UNITS
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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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