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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Laborarztpraxis Rhein-Main MVZ GmbH & Co. e

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COFRAC 1-6419 Sainghin-En-Melantois, FR
DIN EN 17126 DIN EN 14562 DIN EN 14348 IEC 60127-5 DIN EN 14563 + 3 more
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LEAV

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COFRAC 1-1064 La Roche-Sur-Yon Cedex 9, FR
DIN ISO 11665-4 DIN 53483-2 DIN EN ISO 7937 NF V08-050 NF V 08-060 + 3 more
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Laborgemeinschaft Berlin - Labor 28

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DAkkS D-ML-17159-01-00 Berlin, DE
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DAkkS D-ML-18493-01-00 Darmstadt, DE
HbA1c Großes Blutbild Kleines Blutbild Retikulocyten Natriumchlorid + 3 more
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Lambda Calibration

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UKAS 0495 Chorley, GB
PRESSURE (cont’d) Distortion Factor Spot frequency Phase angle (Herpes simplex virus type + 3 more
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Lambeth Scientific Services

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UKAS 0937 Chessington, GB
(HSG 248) – 2021 (PCM) based on HSG 248 P-12 based on HSG 248
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Lancashire County Scientific Services

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UKAS 0625 Preston Riversway Docklands, GB
(HSG 248) – 2021 (PCM) based on HSG 248 ISO 12966-2 F06 6 & F06 5 based on BS EN F05 4 based on BS 770:Part + 3 more
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Landesuntersuchungsanstalt für das Gesundheits- und Veterinärwesen Sachsen

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Leadec BV &

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DAkkS D-K-21171-01-01 Chemnitz, DE
Gleichspannung 33 mV Messgeräte 0,33 V 330 V Gleichstromstärke 33 µA Messgeräte 0,33 mA + 3 more
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Leftfield Environmental

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UKAS 6998 Port Talbot, GB
(HSG 264, 2012)
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Leftfield Environmental

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UKAS 4707 Port Talbot, GB
(HSG 248) – 2021 LSOP6 based on HSG 248 (PCM) based on HSG 248
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Lehren- und Meßgerätewerk Schmalkalden GmbH LMW-Kalibrierservice

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DAkkS D-K-21443-01-00 Schmalkalden, DE
(ein- und mehrgängige zylindrische Außen- und symmetrischem und unsymmetrischem Profil) Außengewinde + 3 more
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Leibniz-Institut für Ostseeforschung Warnemünde (IOW) Analytik-Gruppe (Kalibrierlabor) des IOW

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DAkkS D-K-14544-01-00 Rostock-Warnemünde, DE
Taupunkttemperatur - Direktanzeigende Thermometer (SPRT) *) thermometer *) −2 °C bis Transmitter und + 3 more
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Leibniz-Institut für Werkstofforientierte Technologien - IWT Amtliche Materialprüfungsanstalt der Freien Hansestadt Bremen

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DAkkS D-PL-11240-01-01 Bremen, DE
DIN EN 60601-2-4 IEC 60512-4-1 DIN EN 124-2 IEC 60512-4-3 DIN EN 60601-2-44 + 3 more
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Life Environmental Services

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UKAS 0610 Bishop's Stortford, GB
(HSG 248) – 2021 QSOP 01 based on HSG 248 (PCM) based on HSG 248 QSOP 03 based on HSG 248
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Life Environmental Services

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UKAS 0340 Bishop's Stortford, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004)
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Limbach Nord GmbH MVZ Labor Limbach Lehrte

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DAkkS D-ML-21457-02-00 Lehrte, DE
Aluminium Blei Eisen, Kupfer Ampicillin Cefepim + 3 more
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Linde GmbH Linde Gas Deutschland

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anteile Kohlenstoffmonoxid Kohlenstoffdioxid Methan Ethan + 3 more
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Linsch Consultants

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UKAS 2432 Newport, GB
(HSG 248) – 2021 staining based on HSG 248
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Liverpool University Hospitals NHS Foundation Trust

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UKAS 9656 70 Pembroke Place, GB
accordance with (EN ISO 14644- BS EN ISO 14644-1:2015
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Logical Compliance

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UKAS 29622 Chelmsford, GB
(HSG 264, 2012)
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London Borough of Enfield

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UKAS 1119 Enfield, GB
staining based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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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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