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
1,560 Accredited labs
17 Countries

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Crown Windley

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UKAS 30213 Derby, GB
Surface plates LENGTH Straight edges
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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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DM Calibration

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UKAS 0143 Letchworth Garden City, GB
LENGTH Blade type Straight edges Surface plates External micrometer + 3 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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Davidson and Hardy (Laboratory Supplies)

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UKAS 7783 Belfast, GB
DIN EN 12469 EN 14175-3-2004
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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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ENV Surveys

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UKAS 2794 Brighton, GB
staining based on HSG 248 (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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ERC Testing

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UKAS 23361 Leigh, GB
DIN EN 1863-1 BS EN ISO 10077-1:2006 published 2024) for BS EN DIN EN 1863-2 BS EN ISO 10077-2:2017 + 3 more
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East Riding Laboratories

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UKAS 2398 Hull, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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Efectis UK/Ireland

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UKAS 10169 Jordanstown, GB
EN 1364-3 DIN EN 1366-4 EN 1364-4 BS 476-21 BS 476-22 + 3 more
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Element Materials Technology Environmental UK

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UKAS 4225 Deeside, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 based on BS EN 12457 DIN EN 1948-4 dbSNP rs1800562, rs1799945, rs1800730, r
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Element Materials Technology Environmental UK

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UKAS 0170 Heaton Mersey, GB
(HSG 264, 2012) HSG 227 (2004)) (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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Element Materials Technology Sheffield

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UKAS 0136 Rotherham, GB
ISO 3651-2 ASTM A262 Methods A, C & E ISO 7438 ASTM G28-2022 Method A ASTM G48 Method A + 3 more
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Element Materials Technology Wednesbury

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UKAS 0621 Wednesbury, GB
DIN EN 1303 DIN EN 12209 DIN EN 14846 BS 3621:2007+A2:2012 BS 8621:2007+A2:2012 + 3 more
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Enertek International

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UKAS 9141 Sutton Fields, GB
DIN EN 12279 DIN EN 12278 -22018G/A, rs182549 DIN EN 303-2 DIN EN 15502-2-1 + 3 more
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Enquin Environmental

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UKAS 2604 Wentloog, GB
(HSG 248) โ€“ 2021 (Section 2) based on HSG 248 (Section 4) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) + 3 more
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Enviraz Surveys

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UKAS 0441 Glasgow, GB
HSG 264 (2012) and Appx. 3 of (HSG 264, 2012) HSG 227 (2004)) 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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