UIC 544-2

Railway Braking Force Estimation Methods

UIC 544-2 provides standardized calculation and estimation methods for determining braking force in railway rolling stock across different brake system types and operational scenarios. This technical standard defines mathematical models for translating brake system pressure, line force, and mechanical leverage into actual stopping power, accounting for variables such as wheel slip, temperature effects, and load conditions. The standard enables consistent performance prediction and certification across diverse European rail systems. Accreditation for this calculation methodology ensures reproducible, safety-critical engineering assessments used in rail fleet design and operational planning.

What it measures

  • Brake force calculation from system pressure and geometry
  • Adhesion coefficient effects on available braking force
  • Load-dependent braking force variations
  • Dynamic brake force response characteristics
  • Braking force distribution optimization
🇩🇪 DIN EN 14531-1 🇬🇧 BS EN 14531-1 🇫🇷 NF EN 14531-1 🇮🇹 UNI EN 14531-1 🇪🇸 UNE EN 14531-1 🇳🇱 NEN EN 14531-1
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Minebea Intec Bovenden

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DAkkS D-K-20451-01-00 Bovenden, DE
Konventioneller Wägewert/ Massenormale Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO + 3 more
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Ministerium für Soziales, Gesundheit und Integration Baden-Württemberg Landesgesundheitsamt Baden-Württemberg

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Mitteldeutsches Kalibrierlabor GbR Udo Herr und Oliver Martin

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DAkkS D-K-18097-01-01 Glindenberg, DE
Railway brake — magnetic track brakes (U auch Vor-Ort Kalibrierung Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32)
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Mitutoyo Deutschland

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DAkkS D-K-15096-01-00 Neuss, DE
Parallelendmaße 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße > 10 mm Parallelendmaße > 100 mm + 3 more
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Mobiler Kalibrierdienst Fini

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DAkkS D-K-21161-01-01 Esslingen, DE
Gleichspannung 3 mV Messgeräte 10 mV > 100 mV > 220 mV > 11 V + 3 more
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MonTech Werkstoffprüfmaschinen GmbH Kalibrierlabor

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DAkkS D-K-11292-01-00 Buchen Odenwald, DE
Temperatur 50 °C Railway brake handbooks (UIC 547) 1) In den CMC sind die erweiterten Messu
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Murrelektronik GmbH Prüfzentrum (4)

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DAkkS D-PL-19306-01-00 Oppenweiler, 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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Mühlenkreiskliniken AöR Institut für Laboratoriumsmedizin, Transfusionsmedizin und Mikrobiologie

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DAkkS D-ML-20225-01-00 Minden, DE
Differentialblutbild Kleines Blutbild (maschinell) Thrombozyten Unreife Thrombozyten (IPF) Urinsediment (maschinell) + 3 more
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München Klinik gGmbH Medizet - Institut für Laboratoriumsmedizin und medizinische Mikrobiologie

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NATEC Sensors

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DAkkS D-K-15139-01-01 Garching, DE
Railway brakes — conditions for homologa − Durchfluss von Flüssigkeiten Gleichspannung U (Simulation des Signals generators) + 3 more
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NEMKO

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DAkkS D-PL-22131-01-01 Pfinztal, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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Narda Safety Test Solutions

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DAkkS D-K-17726-01-00 Pfullingen, DE
Elektrische Feldstärke / 2 V/m 2,5 V/m 1 V/m Magnetische Feldstärke / + 3 more
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Niedersächsisches Landesgesundheitsamt

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DAkkS D-PL-17693-02-01 Hannover, DE
DIN EN ISO 15061 (D 34) DIN EN 27888 (C 8) DIN EN 1484 (H 3) ISO 5667-21 DIN 38404-C 10 + 3 more
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Nordwestdeutsche Zählerrevision Aug. Knemeyer

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DAkkS D-K-18679-01-02 Bad Laer, DE
− Durchfluss von Gasen Railway brakes — brake performance (UIC − Wärmezähler Volumendurchfluss und 25 L/h Volumen strömender + 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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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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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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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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PETROLAB GmbH Laboratorium für Mineralöl- und Umweltanalytik

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DAkkS D-PL-14361-01-01 Speyer, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 ASTM D 86 DIN EN 13016-1 + 3 more
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PHOENIX TESTLAB

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DAkkS D-PL-17186-01-01 Blomberg, DE
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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PID test & engineering

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DAkkS D-PL-21530-01-01 Sand am Main, DE
DIN EN IEC 60068-2-38 DIN EN IEC 60068-2-11 BS ISO 9227:2022 DIN EN 60068-2-14 IEC 60068-2-60 + 3 more
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PLANCO-TEC

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DAkkS D-PL-22217-01-00 Neu-Eichenberg, DE
DIN EN 12457-4 DIN EN 12579 DIN EN 13040 DIN EN ISO 10523 (C 5) DIN EN 12880 (S 2a) + 3 more
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Industries

Railway rolling stock engineering and design Brake system manufacturers and integrators Railway fleet operators Rail vehicle certification authorities Transport safety and compliance consulting

Related Standards

  • UIC 544-1 Railway brakes — Braking performance
  • UIC 541-01 Railway brakes — Brake pads — Part 1: Friction material specification
  • EN 14531-1 Railway applications — Safety requirements for the design of rolling stock

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