EN 15461

Railway Brake Friction Material Characterisation

This test characterises the friction properties and thermal behavior of brake pads and brake blocks used in railway braking systems, ensuring consistent performance and safety across diverse operating conditions. The test evaluates friction coefficients at various temperatures, pressure levels, and speeds to validate that materials meet performance specifications for both passenger and freight applications. Accurate characterisation is essential for brake system designers to predict braking performance and prevent brake fade or instability. Accreditation guarantees that testing is performed with validated equipment and procedures, supporting regulatory compliance and safe brake system design.

What it measures

  • Friction coefficient at varying temperatures
  • Friction coefficient dependence on pressure and sliding speed
  • Thermal fade and recovery characteristics
  • Wear rate and material degradation
  • Vibration and noise generation potential
🇩🇪 DIN EN 15152 🇬🇧 BS EN 15152 🇫🇷 NF EN 15152 🇮🇹 UNI EN 15152 🇪🇸 UNE EN 15152 🇳🇱 NEN EN 15152 🇩🇪 DIN EN 13571 🇬🇧 BS EN 13571 🇫🇷 NF EN 13571 🇮🇹 UNI EN 13571 🇪🇸 UNE EN 13571 🇳🇱 NEN EN 13571
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DAkkS Professional D-K-22606-01-01 Winnenden, DE
absolute Feuchte Taupunkttemperatur Taupunktspiegel Taupunkttransmitter Railway bogies — wheelsets and bogies st + 3 more
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UKAS 4236 Northampton, GB
cartridges, based on HTM 2030 9.201 to 9.212 and BS EN ISO 35 °C/3 days based on HTM 2030 section 9.201 to 9.212, BS EN ISO 15883-1:2009 6.4.2.3 and + 3 more
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ENAC LC10.134 Castellón de la Plana, ES
1 mg ≤ m ≤ 10 g 10 g < m ≤ 100g 100 g< m
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UKAS 0173 London, GB
(HSG 264, 2012)
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UKAS 9372 West Chiltington, GB
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8tree Scanner / 0 mm bis 100 mm Laterale Größe von Tiefenmaß/ -unterstand (Härteskalen HV0,01
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UKAS 9260 Dukinfield, GB
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ENAC LC10.160 San Fernando de Henares, ES
-95 kPa ≤ P < -1 kPa -1 kPa ≤ P < -100 P 5 kPa ≤ P < 80 kPa 80 kPa ≤ P ≤ 120 kPa 0 MPa ≤ P ≤ 2 MPa 2 MPa < P ≤ 20 MPa 20 Punto triple del agua (0,01 °C) Punto de fusión del hielo (0,00 °C) -80 + 3 more
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ABB AG Kalibrierlaboratorium für Druck, Durchfluss und Temperatur

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Absolutdruck p abs positiver Überdruck Positiver Überdruck p e Überdruck p + 3 more
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TEMPERATURE PRESSURE AC VOLTAGE (continued) DC VOLTAGE Generation only + 3 more
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(HSG 248) – 2021 staining based on HSG 248 QP23 based on HSG 248 (PCM) based on HSG 248
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UKAS 2742 Canvey Island, GB
Analysts’ Guide (HSG 248) (PCM) based on HSG 248
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(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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ENAC LC10.162 Tres Cantos, ES
L ≤ 150 mm L ≤ 25 mm
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COFRAC 1-7464 Bellegarde, FR
DIN EN 17126 DIN EN 13624 DIN EN 13727 DIN EN ISO 11930 DIN EN 14476 + 3 more
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NEN-EN 15567-1
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COFRAC 1-5606 Brussieu, FR
NF X 43-269 NF X 43-050 NF X43-269 – Annexe NF X43-050 (parties utiles de la norme) NF X43-050 (useful parts of the standard + 3 more
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COFRAC 1-6680 Hrabakova 1861/1 | 702 00 Moravska Ostrava A Privoz | Republique Tcheque, CZ
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Industries

Brake pad and block manufacturers Rolling stock manufacturers Braking system integrators and suppliers Railway maintenance and depot operators Material testing and research laboratories

Related Standards

  • EN 15152 Railway applications - Braking systems on rail vehicles - General requirements and definitions
  • EN 13571 Railway applications - Brakes - Disc brake pads - Specifications and approval
  • EN 14363 Railway applications - Testing and Simulation for the acceptance of running characteristics of railway vehicles

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