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
๐Ÿ‡ฉ๐Ÿ‡ช DIN EN 15152 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN 15152 ๐Ÿ‡ซ๐Ÿ‡ท NF EN 15152 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN 15152 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN 15152 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN 15152 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN 13571 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN 13571 ๐Ÿ‡ซ๐Ÿ‡ท NF EN 13571 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN 13571 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN 13571 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN 13571
1,323 Accredited labs
15 Countries

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Cardiff and Vale University Health Board, operating as WEQAS

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UKAS 4301 Llanishen, GB
Electrolytes in blood serum: Enzymes in blood serum: (Chlamydia pneumoniae, Mycoplasma urine: Hormones in blood serum: + 1 more
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Carymar Construction Services

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UKAS 27202 Paisley, GB
(HSG 264, 2012)
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Casa Environmental Services

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UKAS 7914 Willsbridge, GB
5 of HSG 227 (2004)) (HSG 264, 2012)
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Cavendish Laboratories

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UKAS 1643 Chelmsford, GB
(cdt), Deletion an Pos 117 (HSG 248) โ€“ 2021 (PCM) based on HSG 248 BS 6068-4.12:1998 (withdrawn)
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Chamois Metrology

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UKAS 0822 Southam, GB
Calibration of pressure Gas pressure (gauge) Gas Pressure (Differential) common mode pressure of 3.5 Hydraulic pressure (gauge) + 3 more
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Clearview Environmental

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UKAS 6536 Leicester, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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Clyde Environmental Consultants

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UKAS 9102 Bellshill, GB
(HSG 248) โ€“ 2021 SRV-002 based on HSG 248 (PCM) based on HSG 248
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CoMech Metrology

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UKAS 0318 Derby, GB
Chronic progressive external Depth Internal Dial gauges and dial test Caliper + 3 more
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Common Services Agency โ€“ NHS National Services Scotland

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UKAS 0595 1 South Gyle Crescent, GB
simulation. parameters and ranges) digital and analogue
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Compli Group

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UKAS 4332 Poole, GB
DC CURRENT DC Resistance Oscilloscope Calibration DC VOLTAGE CAPACITANCE + 3 more
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Construction Testing Solutions

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UKAS 4161 Leicester Forest East, GB
DIN EN 933-11 DIN EN 12390-3 DIN EN 933-3 DIN EN 12390-7 DIN EN 12697-5 + 3 more
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Construction Testing Solutions

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UKAS 0783 Duckmanton, GB
DC CURRENT LENGTH DC Resistance DC VOLTAGE Cold junction compensation + 3 more
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Core Surveys

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UKAS 6830 Fletching Common, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 (HSG 264, 2012)
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Corserv Solutions

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UKAS 0756 Redruth, GB
DIN EN 933-1 (PCM) based on HSG 248 (HSG 248) โ€“ 2021 DIN EN 932-1 DIN EN 932-2 + 3 more
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Crucial Environmental

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UKAS 9418 Worthing, GB
(HSG 264, 2012)
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Crusader Risk Management

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UKAS 31255 Swinton, GB
(HSG 264, 2012)
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Cube Environmental

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UKAS 6856 Basildon, GB
(HSG 248) โ€“ 2021 (HSG 264, 2012)
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DH Budenberg A division of WIKA Instruments

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UKAS 0138 Irlam, GB
Gas pressure (absolute) Gas pressure (gauge) Hydraulic pressure (gauge) Hydraulic Pressure (absolute) PRESSURE (contโ€™d) + 1 more
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DNKA

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UKAS 9730 Govan, GB
staining based on HSG 248. (PCM) based on HSG 248 (HSG 248) โ€“ 2021 QSOP 03 based on HSG 248 QSOP 01 based on HSG 248
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Decus Research

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UKAS 4303 Ammanford, GB
1) MS08P based on BS EN ISO MS02P based on BS EN ISO MS03P based on BS EN ISO MS06P based on BS EN ISO MF07P based on BS EN ISO + 3 more
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Devonport Royal Dockyard

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UKAS 0254 Plymouth, GB
Specific Values 1 ๏— RF Power RF Attenuation 10 MHz to 1 GHz Other values -20 dBm to +20 dBm
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Devonport Royal Dockyard

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UKAS 0687 Devonport, GB
BS 4206:1967 (superseded) ISO 5173 ISO 7438 BS EN ISO 9606-2:2004 BS 131-5:1965 + 3 more
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Don Whitley Scientific

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UKAS 0560 Bingley, GB
TIME INTERVAL TEMPERATURE parameters and ranges)
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E C L (2000)

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UKAS 0709 Forest Hall, GB
(PCM) based on HSG 248) (HSG 248) โ€“ 2021
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EDP Health Safety and Environment Consultants

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UKAS 9982 Waterside Court, GB
and Appx. 3 of HSG 227 (2004)) in Appendix 5 of HSG 227 (2004) guides HSG 264 (2012) and (HSG 264, 2012)
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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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