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
3,963 Accredited labs
21 Countries

Showing 1,976–2,000 of 3,963 labs

ENAC LE504 Bonares, ES
UNE-EN 15604 AOAC 993.13 UNE-EN 15475 UNE-EN 15958 UNE-EN 15956 + 3 more
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ENAC LE1718 Sevilla, ES
ASTM D 5867 ASTM D5866 ASTM D5867
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ENAC LE299 Santander, ES
UNE-EN ISO 6892-1 UNE-EN ISO 15630-1 UNE 36065 UNE-EN ISO 15630-2 UNE-EN ISO 945-1 + 3 more
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ENAC LC10.010 Madrid, ES
8 mT/A ≤ B/I < 500 mT/A 80 mT ≤ B ≤ 1,1 T 0,2 mT ≤ B < 1,1 T 0 mT ≤ B < 80 mT 10 Wb <   0,2 Wb + 2 more
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ENAC LE649 Coruña, ES
Tensile testing of metallic materials (I ISO 6439 ISO 15923-1 ISO 29441 ISO 6059 + 3 more
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ENAC LC10.110 Vilanova i la Geltrú, ES
EURAMET CG-6 CEM DI-008 CEM DI-021 CEM DI-005 CEM DI-010 + 2 more
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ENAC LC10.063 Valladolid, ES
3,5 kPa  P  70 kPa 70 kPa < P  700 kP 3,5 kPa  P  2,0 MPa 2,0 MPa < P  7,0 3,5 kPa  P  20 kPa 20 kPa < P  70 kPa 100 kPa  P  6,1 MPa 6,1 MPa < P  100 100 kPa  P 70 MPa + 3 more
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ENAC LC10.002 Madrid, ES
nach DIN EN ISO 3650:1999 EURAMET CG-6 ISO 5436-1 CEM DI-013 CEM DI-012 + 3 more
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ENAC LE1260 Cáceres, ES
ISO 13164-4 OM H-3 based on ISO 9698:2019 ISO 13161 ISO 18589-6 ISO 11665-4 + 3 more
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ENAC LE2203 Tajonar, ES
DIN CEN/TS 16165 UNE 41901 UNE 41902 UNE-EN 1097-8 UNE-EN 13036-4 + 3 more
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ENAC LE1189 Valencia, ES
Tensile testing of metallic materials (I DIN EN ISO 6887-2 ISO 4832 DIN EN ISO 23500-3: ISO 16649-2 + 3 more
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ENAC LE406 Madrid, ES
Tensile testing of metallic materials (I ISO 4832 ISO 21527-1 ISO 21527-2 ISO 16649-2 + 3 more
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ACCREDIA 00712 Barcellona Pozzo Di Gotto, IT
ISO 4832 DIN EN ISO 7932 DIN EN ISO 15586 ISO 11731 ISO 16649-2 + 3 more
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ACCREDIA 00842 Bari, IT
ISO 21527-1 DIN EN ISO 4833-1 ISO 11731 DIN EN ISO 6888-1 ISO 16649-2 + 3 more
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ACCREDIA 00352 Conegliano, IT
BS EN 15662 UNI EN 15662 OIV-MA-AS313-01 cap 5.2 R2015 OIV-MA-AS313-02 R2015 OIV-MA-AS2-04 R2009 + 3 more
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ACCREDIA 01085 Atena Lucana, IT
ISO 4832 ISO 21527-1 DIN EN ISO 4833-1 DIN EN ISO 21528-2 ISO 16649-2 + 3 more
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ACCREDIA 00429 Perugia, IT
DIN EN ISO 15587-2 ISO 11731 ISO 6222 ISO 7899-2 ISO 9308-1 + 3 more
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ACCREDIA 00354 Refrontolo, IT
OIV-MA-AS313-01 cap 5.2 R2015 OIV-MA-AS313-02 R2015 OIV-MA-AS2-04 R2009 OIV-MA-AS2-03B R2012 OIV-MA-AS311-02 R2009 + 3 more
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ENAC LE878 Olite, ES
OIV-MA-AS312-01 OIV-MA-AS2-01 OIV-MA-AS2-03B OIV-MA-AS313-15 OIV-MA-AS323-04A1 + 3 more
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ACCREDIA 00820 Castellabate, IT
DIN EN ISO 6579-1 DIN EN ISO 18593 ISO 11731 ISO 18743 ISO 6579-1 + 3 more
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ACCREDIA 00776 Cavriago, IT
ISO 4832 ISO 21527-2 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 + 3 more
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ACCREDIA 00815 Nocera Inferiore, IT
ISO 21527-1 DIN EN ISO 10523 ISO 6222 ISO 7899-2 ISO 9308-1 + 3 more
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ACCREDIA 00042 Vaprio d'Adda, IT
DIN 1048-2 DIN ISO 48-4 DIN ISO 815-2 DIN ISO 1817 ISO 37 + 3 more
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ENAC LE391 Jerez de la Frontera, ES
OIV-MA-AS312-01 OIV-MA-AS2-01 OIV-MA-BS-06 OIV-MA-AS2-03B OIV-MA-BS-10 + 3 more
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ACCREDIA 00827 Matera, IT
ISO 18787 DIN EN ISO 6579-1 DIN EN ISO 6888-2 ISO 16649-2 ISO 11290-1 + 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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