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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DAkkS D-K-15115-01-01 Kassel, DE
Gleichstrom- und Niederfrequenzmessgröße - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand - Wechselspannung + 3 more
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UKAS 4236 Northampton, GB
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UKAS 23262 London, GB
Whole Blood Full blood count | 520 Whole Blood Full blood count | SOP LAB 1 A, B, O, Rh (D) | SOP LAB 11 Blood Phlebotomy | SOP LAB 03 Biochemistry examination activities | Ro + 3 more
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29 Fleet Street

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DAkkS D-K-15158-01-00 Haiger, DE
Sound intensity — scanning method (ISO 9 Hand-arm vibration — measurement (ISO 53 Railway testing reference handbook part messeinrichtungen von Pendelschlagwerke und + 3 more
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DAkkS D-K-18164-01-01 Partenstein, DE
Railway braking — adhesion under braking Koordinatenmessgeräte geräte mit einem DEA Hexagon Metrology Polyworks, Software von Metrologic, Software von + 3 more
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BELAC 772-TEST Bruxelles, BE
IEC 61400-50-1 IEC 61400-50-2 MEASNET “Evaluation of si
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UKAS 0173 London, GB
(HSG 264, 2012)
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UKAS 1931 London, GB
BS 7976-2 (HSG 248) – 2021 (PCM) based on HSG 248 E203 based on HSG 248 E200 based on HSG 248 + 1 more
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UKAS 9372 West Chiltington, GB
(HSG 264, 2012)
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8tree GmbH 8tree Calibration Lab

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DAkkS D-K-21981-01-00 Konstanz, DE
(Härteskalen HV0,01 8tree Scanner / 0 mm bis 100 mm Laterale Größe von Tiefenmaß/ -unterstand + 2 more
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9 Harley Street

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UKAS 25321 London, GB
HUMAN BODY FLUIDS Clinical Biochemistry Alkaline Phosphatase (ALP) | Phosphate Alkaline Phosphatase (ALP) | SOP: LAB-SO Alanine Aminotransferase (ALT) | Absorba Alanine Aminotransferase (ALT) | SOP: LA + 3 more
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UKAS 9260 Dukinfield, GB
(HSG 264, 2012)
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COFRAC 1-5950 Vannes, FR
NF X 43-050 ISO 16000-7 FD T 90-522 FD X 46-033
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ACCREDIA 00925 Napoli, IT
DIN EN ISO 7438 DIN EN ISO 4136 DIN EN ISO 5173 DIN EN ISO 9016 DIN EN ISO 9017 + 3 more
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DAkkS D-PL-14087-01-03 Plauen, DE
DIN EN ISO 2719 DIN EN 12879 DIN EN 12880 DIN EN ISO 19458 DIN EN 932-1 + 3 more
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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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COFRAC 1-6467 Limoges, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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ABB AG Kalibrierlaboratorium für Druck, Durchfluss und Temperatur

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DAkkS D-K-12115-01-00 Minden, DE
Railway overhead lines — pantograph head - Direktanzeigende Thermometer - Thermopaare, Thermoelemente abs positiver Überdruck + 3 more
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ABESCO CONTRACTS bv

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BELAC 753-TEST Glabbeek, BE
NBN T96-102 HSG248 - appendix 2
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ABLE Calibration Services

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UKAS 4021 Rogerstone, GB
PRESSURE Hydraulic pressure (gauge) TEMPERATURE DC VOLTAGE INDUCTANCE + 3 more
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UKAS 4494 Southampton, GB
(HSG 248) – 2021 staining based on HSG 248 (PCM) based on HSG 248 QP23 based on HSG 248
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ABPI Aalener Baustoffprüfinstitut

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DAkkS D-PL-19436-01-01 Aalen, DE
DIN EN 932-1 DIN EN ISO 17892-4 DIN 19682-1 DIN 19682-2 DIN EN ISO 14688-2 + 3 more
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UKAS 2742 Canvey Island, GB
(PCM) based on HSG 248 Analysts’ Guide (HSG 248)
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UKAS 0162 Ashwellthorpe, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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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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