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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ACCREDIA 00365 Teramo, IT
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ATESTEO GmbH & Co. KG ATESTEO Kalibrierlabor

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Gleichstromleistung / Messgeräte Wirkleistung Leistungsfaktor - Gleichspannung + 3 more
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ACCREDIA 02321 Roma, IT
IEC 15408-1 IEC 18045 IEC 18367 IEC 20543 IEC 20004
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COFRAC 1-2005 Firminy, FR
ASTM E8/E 8M DIN EN 10002-1 DIN EN 10002-5 DIN EN ISO 6892-2 DIN EN ISO 643 + 3 more
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DIN EN ISO 14403-2 NF V 04-407 NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 + 3 more
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DAkkS D-K-20974-01-00 Cadolzburg, DE
Abgasmessgeräte für − Abgasmessgeräte für Fremdzündungsmotor Kohlenstoffmonoxid Kohlenstoffmonoxid CO Kohlenstoffdioxid CO2 + 3 more
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AVL IBERICA

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ENAC LC10.240 Valladolid, ES
CEM ME-003
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AWE

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UKAS 1854 Reading, GB
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UKAS 0477 Gosport, GB
the guidance of GPG 14 PERSONAL DOSE EQUIVALENT: RESPONSE:
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TORQUE
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Absolute Calibration

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DC Resistance CFH-Gen, Macula-Degeneration DC RESISTANCE (continued) DC VOLTAGE DC VOLTAGE (continued) + 3 more
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UKAS 2418 Cleckheaton, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227
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Acoustical Investigation & Research Organisation Ltd (AIRO)

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UKAS 0483 Hemel Hempstead, GB
ISO 11654 BS EN ISO 10140-2:2021 ISO 7171 ISO 354 BS EN ISO 10140-3:2021 + 3 more
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Acoustics Noise and Vibration

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Sound Calibrators Pistonphones based: level Microphones + 2 more
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Acron Asbestos

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(HSG 264:2012) HSG 227 Appendix 5: By HSG 227 Appendix 3: By
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UKAS 9064 Paignton, GB
DIN EN ISO 11127-6 DIN EN 13727 1) BS EN ISO 11930:2019+ 2) QMIC WI 22, based on BS EN
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Ahlborn Meß- und Regelungstechnik

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DAkkS D-K-19342-01-02 Holzkirchen, DE
Taupunkttemperatur Railway braking — urban guided transport Temperaturtransmitter Widerstandssensor *) –30 °C + 3 more
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Air Surveys

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UKAS 0553 Wandsworth, GB
(HSG 248) – 2021 APP 7 based on HSG 248 (PCM) based on HSG 248 (PCM) based on HSG 248) APP 15 based on HSG 248 + 2 more
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Airborne Environmental Consultants

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UKAS 0232 Manchester, GB
(HSG 264, 2012)
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Airborne Environmental Consultants

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UKAS 2054 Manchester, GB
(HSG 248) – 2021 AEC 1 based on HSG 248 (PCM) based on HSG 248 AEC 6 based on HSG 248
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Airbus Defence and Space

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DAkkS D-K-18731-01-01 Manching, DE
- Gleichspannung / Messgeräte 1 µV Quellen > 1 V + 3 more
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Airsafe Analytical

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UKAS 4376 Alton, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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Airtech Analysis

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UKAS 0681 Writtle, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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Alfred H Knight Energy Services

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UKAS 1765 Kilmarnock, GB
BS ISO 18283:2022 ASTM D2234 (location E) ASTM D2013 (location B) BS ISO 5074:2015; and ASTM D409:2016 + 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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