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
1,560 Accredited labs
17 Countries

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Technological Laboratory of Uruguay

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UKAS 1893 Uruguay, UY
ISO 3727-1/IDF 80-1:2001 ISO 5534/IDF 4:2004 ISO 6731/IDF 21:2010 ISO 6734/IDF 15:2010 according to ISO 6091/IDF + 3 more
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Telsy

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ACCREDIA 01747 Orvieto, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
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Temperaturmeßtechnik Geraberg

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DAkkS D-K-18197-01-00 Martinroda, DE
Taupunkttemperatur Railway braking — urban guided transport Widerstandssensor –40 °C bis > 5 °C bis + 3 more
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Teramess

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DAkkS D-K-18666-01-02 Germering, DE
Absolutdruck p 0,015 bar abs > 1,7 bar > 70 bar > 100 bar + 3 more
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Tesat-Spacecom GmbH & Co. KG Kalibrierlaboratorium

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DAkkS D-K-18316-01-00 Backnang, DE
Gleichspannung 0 mV Messgeräte 10 mV Wechselspannung 0,22 mV > 220 mV > 2,2 V + 3 more
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Test-Fuchs, Fritz Fuchs Gesellschaft mit beschränkter Haftung Kalibrierlaboratorium Deutschland

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DAkkS D-K-22318-01-00 Neu Wulmstorf, DE
Positiver Überdruck p e > 70 bar Überdruck p (ein- oder mehrgängige
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Testo Industrial Services

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DAkkS D-K-15070-01-01 Kirchzarten, DE
- Gleichspannung / Messgeräte Quellen Hochspannung - Gleichstromstärke + 3 more
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Testo Industrial Services

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UKAS 0805 Ramsdell, GB
RELATIVE HUMIDITY HUMIDITY continued loggers Gas Pressure Gauge Saturated salt capsules + 2 more
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Tetra Consulting

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UKAS 0175 London, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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Tetra Tech Consulting

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UKAS 1709 London, GB
(HSG 248) – 2021 RPSCA1 based on HSG 248 (PCM) based on HSG 248 RPSCA2 based on HSG 248 BS 7592:2008, BS 8554:2015 + 2 more
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Tetra Tech

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UKAS 6060 Leeds, GB
(HSG 248) – 2021 &10 based on HSG 248 (PCM) based on HSG 248
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TetraTec Instruments

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DAkkS D-K-17589-01-01 Steinenbronn, DE
Railway brakes — disc brake pads (UIC 54 Volumendurchfluss bzw. 0,01 m Railway pantographs — requirements for m 39 mL/h + 3 more
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The Auditing Company

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RvA I309 Culemborg, NL
#EN ISO 5164:14 # EN 116-97 # ISO 13736 NEN 4400-1 #ISO 6618
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The Equipment Calibration Business

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UKAS 20765 High Wycombe, GB
DC CURRENT DC Resistance Measurement DC VOLTAGE CAPACITANCE + 3 more
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The Hazard Management and Environmental Services Laboratories

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UKAS 0225 Fenstanton, GB
(HSG 264, 2012)
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The Hazard Management and Environmental Services Laboratories

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UKAS 0575 Fenstanton, GB
(HSG 248) – 2021 03 based on HSG 248) QOP01 based on HSG 248 (PCM) based on HSG 248
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The Original Gauge Company

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UKAS 4699 New Milton, GB
LENGTH Screw ring gauges (parallel) LENGTH cont. As for Involute Spline Gauges See Note 2 + 3 more
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The Testing Lab

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UKAS 7758 Doncaster, GB
DIN EN 933-11 BS EN ISO 17892-1:2014+A1:2022 BS EN ISO 17892-10:2018 BS EN ISO 17892-11:2019 BS EN ISO 17892-2:2014 + 3 more
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The Tintometer

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UKAS 0630 Amesbury, GB
SPECTRAL TRANSMITTANCE Wavelength 380 nm materials
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Themisis

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RvA I381 Zaltbommel, NL
#EN ISO 5164:14 # EN 116-97 # ISO 13736 NEN 4400-1 #ISO 6618
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Thermo Electron LED

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DAkkS D-K-17616-01-01 Langenselbold, DE
- Gleichspannung Messgeräte 0,001 V bis 0,33 V bis 3,3 V bis 330 V bis + 3 more
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Thermo Sensor

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DAkkS D-K-18093-01-00 Werne, DE
Tensile testing of metallic materials (I Temperaturmessgrößen thermometer und Railway braking — urban guided transport Railway vehicle body structural requirem + 3 more
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ThermoTEC Weilburg

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DAkkS D-K-19243-01-00 Weilburg, DE
Vickers hardness test (ISO 6507) Taupunkttemperatur Widerstandssensor * –90 °C –80 °C –40 °C + 3 more
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Third Dimension Software

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UKAS 9951 Filton, GB
LENGTH
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Thomas Dudley

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UKAS 20013 Dudley, GB
BS 1212-2:1990 Clause 4 BS 1212-3:1990 Clause 4 DIN EN 997 Laktoseintoleranz (LCT -14055 BS 1212-4:1991 Clause 4, 13, 14
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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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