EN 17285

Railway Composite Brake Blocks - Requirements

This test method establishes performance requirements and acceptance criteria for composite (non-asbestos) brake blocks used in freight wagon braking systems. It evaluates friction characteristics, thermal stability, wear resistance, and compatibility with brake disc or wheel surfaces under representative operational conditions. Freight operators and brake block manufacturers use this test to ensure component reliability and safe braking performance in heavy-duty rail transport. Accreditation is critical for laboratories conducting brake block qualification testing to provide independent verification of compliance with European technical specifications for freight wagon safety.

What it measures

  • Coefficient of friction under varied temperatures
  • Wear rate and durability characteristics
  • Thermal stability and fade resistance
  • Compatibility with disc or wheel materials
  • Dimensional stability and surface integrity
🇩🇪 DIN EN 16185-1 🇬🇧 BS EN 16185-1 🇫🇷 NF EN 16185-1 🇮🇹 UNI EN 16185-1 🇪🇸 UNE EN 16185-1 🇳🇱 NEN EN 16185-1 🇩🇪 DIN EN 13979-1 🇬🇧 BS EN 13979-1 🇫🇷 NF EN 13979-1 🇮🇹 UNI EN 13979-1 🇪🇸 UNE EN 13979-1 🇳🇱 NEN EN 13979-1
1,323 Accredited labs
15 Countries

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UKAS 2794 Brighton, GB
staining based on HSG 248 (HSG 248) – 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) – 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) – 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) – 2021 (PCM) based on HSG 248
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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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Enquin Environmental

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UKAS 2604 Wentloog, GB
(HSG 248) – 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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Envirocare Midlands

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UKAS 1755 Redditch, GB
(HSG 248) – 2021 SOP/11, based on HSG 248 (PCM) based on HSG 248
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Envirochem Analytical Laboratories

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UKAS 1227 Fareham, GB
(HSG 248) – 2021 DIN EN 12457-2 3.02 based on HSG 248 staining based on HSG 248. (PCM) based on HSG 248
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Envirolab

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UKAS 1247 Hattersley, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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Environmental Essentials

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UKAS 2719 Cannel Row, GB
(HSG 248) – 2021 TP003 based on HSG 248 (PCM) based on HSG 248 TP002 based on HSG 248 Appendix 5 of HSG 227 (2004) + 1 more
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Environmental Inspection

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UKAS 27551 Crook, GB
(HSG 264, 2012)
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Environmental Management Solutions

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UKAS 4238 Hereford, GB
Appendix 5 of HSG 227 (2004) (HSG 264, 2012)
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Environmental Services

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UKAS 2099 Exeter, GB
(HSG 248) – 2021 (PCM) based on HSG 248 SP1 based on HSG 248
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Environmental and Site Safety Solutions

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UKAS 9608 Basildon, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) Executive guides HSG 264 (2012)
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Environtec

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UKAS 2030 Chelmsford, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248
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Envirosafe Testing

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UKAS 28785 Wolverhampton, GB
(HSG 248) – 2021 SOP 3 based on HSG 248 (PCM) based on HSG 248
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Essex Asbestos Testing

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UKAS 8007 Corringham, GB
(HSG 248) – 2021 (PCM) based on HSG 248 TP03 based on HSG 248
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Eton Environmental Group

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UKAS 2734 Darlington, GB
(HSG 248) – 2021 TP005, based on HSG 248 (PCM) based on HSG 248
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Eurofins Chemtest

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UKAS 2183 Newmarket, GB
staining based on HSG 248. (PCM) based on HSG 248 (HSG 248) – 2021 DIN EN 12457-2 DIN EN 12457-3
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Eurofins Electrical & Electronic UK

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UKAS 0452 Bideford, GB
AC CURRENT AC VOLTAGE (continued) Measurement (continued) DC CURRENT Generation (continued) + 3 more
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Eurofins Electrical & Electronic UK

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UKAS 1574 York, GB
IEC 61000-6-1 IEC 61000-4-29: 2000 DIN EN 62233 IEC 61000-4-11: 2004 DIN EN 61000-4-12 + 3 more
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Eurofins Food Testing UK

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UKAS 2262 Ipswich, GB
ISO 6579-1 ISO 6888-1 ISO 16649-2 ISO 11290-1 1) AM/M/11-2 based on BS EN + 3 more
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Industries

Freight wagon operators Brake block manufacturers Brake system component suppliers Rolling stock maintenance providers Railway type-approval bodies

Related Standards

  • EN 16185-1 Railway applications - Brake friction pairs - Part 1: Friction behaviour assessment and acceptance criteria
  • EN 13979-1 Railway applications - Braking systems - Part 1: General requirements and definitions
  • EN 16834 Railway applications - Adhesion under braking and traction conditions

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