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
🇧🇪 NBN EN 15152 🇩🇪 DIN EN 15152 🇬🇧 BS EN 15152 🇫🇷 NF EN 15152 🇮🇹 UNI EN 15152 🇪🇸 UNE EN 15152 🇳🇱 NEN EN 15152 🇧🇪 NBN EN 13571 🇩🇪 DIN EN 13571 🇬🇧 BS EN 13571 🇫🇷 NF EN 13571 🇮🇹 UNI EN 13571
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BELAC 753-TEST Glabbeek, BE
NBN T96-102 HSG248 - appendix 2
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UKAS 4021 Rogerstone, GB
PRESSURE Hydraulic pressure (gauge) TEMPERATURE DC VOLTAGE INDUCTANCE + 3 more
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(HSG 248) – 2021 staining based on HSG 248 (PCM) based on HSG 248 QP23 based on HSG 248
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DIN EN 27888 DIN EN 13126-19 DIN EN 15408 DIN EN 14346 DIN EN 15935 + 3 more
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ENAC LE026 Terrassa, ES
Sound power — engineering method using a Mechanical mounting of accelerometers (I Railway brake — anti-slide device (UIC 5 c.1772A>G rs11568367 ISO 3795 + 3 more
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(HSG 264, 2012) HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248
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COFRAC 1-5574 Bourg-En-Bresse, FR
ISO 13299 ISO 4120 NF V 09-500
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NEN-EN 15567-1
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NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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ISO 4832 ISO 21527-1 DIN ISO 16649-2 DIN EN ISO 18593 BS EN 15662 + 3 more
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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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