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
🇧🇪 NBN EN 14531-1 🇩🇪 DIN EN 14531-1 🇬🇧 BS EN 14531-1 🇫🇷 NF EN 14531-1 🇮🇹 UNI EN 14531-1 🇪🇸 UNE EN 14531-1 🇳🇱 NEN EN 14531-1
3,525 Accredited labs
21 Countries

Showing 126–150 of 773 labs

UKAS 9102 Bellshill, GB
(HSG 248) – 2021 (PCM) based on HSG 248 SRV-002 based on HSG 248
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UKAS 0318 Derby, GB
Temperatur-Simulation Chronic progressive external PRESSURE ELECTRICAL Hydraulic pressure (gauge) + 3 more
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UKAS 0595 1 South Gyle Crescent, GB
parameters and ranges) simulation. digital and analogue HTM 2010:Part 3:1994
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Compli Group

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UKAS 4332 Poole, GB
Chronic progressive external DC Resistance Hydraulic pressure (gauge) Temperature surveys DC VOLTAGE + 3 more
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UKAS 4161 Syston, GB
DIN EN 12350-1 DIN EN 12350-6 DIN EN 12390-1 DIN EN 12390-2 DIN EN 12390-3 + 3 more
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Core Surveys

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UKAS 6830 Polegate, GB
(HSG 264, 2012) (HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 0756 Redruth, GB
DIN EN 12390-1 DIN EN 12390-2 DIN EN 12390-3 DIN EN 12504-1 DIN EN 932-1 + 3 more
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UKAS 9341 Durham, GB
Serum | Detection of: bioMérieux VIDAS u Faeces | SOP: MIC-UKHSA-CDRN-EP-1 Faeces | Campylobacter spp. Faeces | Shigella spp. Routine samples: | Isolation of microorg + 3 more
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UKAS 8666 Durham, GB
Digoxin Cortisol NTproBNP D-Dimer Ferritin + 3 more
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UKAS 9717 Durham, GB
Tissue: biopsy, excision, and | Histopat FFPE slides | Lymphatic endothelium D2-4 Tissue for frozen sections | LP/PA/HP/SO FFPE slides | CP/PA/CP/SOP6 FFPE slides | CP/PA/CP/SOP8 + 3 more
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UKAS 9904 Whiteley, GB
Audiology | Adult Hearing Services: Audiology | Otoscopy Audiology | History Taking Audiology | Pure Tone Audiometry Audiology | Impression Taking + 2 more
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UKAS 9418 Worthing, GB
(HSG 264, 2012)
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UKAS 6856 Basildon, GB
(HSG 264, 2012) (HSG 248) – 2021
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Curesponse

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UKAS 22683 Maidstone, GB
Next generation sequencing ME15 6AW Fresh tissue Tissue slicing | SOP-004 Sa Fresh tissue Tissue slicing | SOP-005 Me Fresh tissue Tissue slicing | SOP-006 Ti + 3 more
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UKAS 8192 Abercynon, GB
Digoxin HbA1c Cortisol Glucose AFP + 3 more
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Cyted UK

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UKAS 9923 Huntingdon, GB
Fungi Amyloid Histopathological examination activities Special stains for the detection of: Gra Elastin Fibres + 3 more
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UKAS 0138 Irlam, GB
Betriebsübertragungsmaß Hydraulic pressure (gauge) Gas pressure (absolute) Gas pressure (gauge) Hydraulic Pressure (absolute) + 1 more
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DNKA

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UKAS 9730 Govan, GB
(HSG 248) – 2021 (PCM) based on HSG 248 QSOP 01 based on HSG 248 QSOP 03 based on HSG 248 staining based on HSG 248.
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UKAS 8817 Dartford, GB
HbA1c Cortisol Glucose Gentamicin Procalcitonin + 3 more
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UKAS 9746 Dartford, GB
Haemoglobin ABO Measurement Antibody identification: Detection of | Thrombophilia screening: | Chromogenic d + 3 more
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UKAS 8803 Dartford, GB
Anti-HBe Anti-HBs EBV VCA IgM Parvovirus IgG Parvovirus IgM + 3 more
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UKAS 22238 Guildford, GB
Measurement VEGFR1 VEGFR2 Identification of: | Using culture media EGFR + 3 more
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UKAS 4303 Ammanford, GB
1) MS08P based on BS EN ISO MS02P based on BS EN ISO MS03P based on BS EN ISO MS06P based on BS EN ISO MF07P based on BS EN ISO + 3 more
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UKAS 0254 Plymouth, GB
RF Power Specific Values 1  RF Attenuation 10 MHz to 1 GHz Other values -20 dBm to +20 dBm
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UKAS 0687 Devonport, GB
ASTM D 445 ASTM D 93 ISO 6507-1 DIN EN ISO 13287 ISO 7438 + 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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