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
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ASOCIACIÓN NOTIO. LABORATORIO DE MATERIALES DE LA CONSTRUCCIÓN

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ENAC LE2422 Toledo, ES
UNE-EN 772-11 UNE 136029 DIN 4772:1979 DIN EN 16510-2-4 DIN EN 17539 + 3 more
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ASTRA STUDIO CHIMICO ASSOCIATO

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ACCREDIA 00365 Teramo, IT
ISO 5667-5 DIN EN 12457-2 ISO 18787 DIN EN ISO 6888-1 UNI 10802 + 3 more
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ATESTEO GmbH & Co. KG ATESTEO Kalibrierlabor

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DAkkS D-K-19792-01-01 Alsdorf, DE
Gleichstromleistung / Messgeräte Wirkleistung Leistungsfaktor - Gleichspannung + 3 more
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ATSEC Information Security srl

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ACCREDIA 02321 Roma, IT
IEC 15408-1 IEC 18045 IEC 18367 IEC 20543 IEC 20004
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AUBERT & DUVAL - Site de Firminy

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COFRAC 1-2005 Firminy, FR
ASTM E8/E 8M DIN EN 10002-1 DIN EN 10002-5 DIN EN ISO 6892-2 DIN EN ISO 643 + 3 more
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AVEYRON LABO

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COFRAC 1-1706 Rodez, FR
DIN EN ISO 14403-2 NF V 04-407 NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 + 3 more
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AVL DiTEST

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DAkkS D-K-20974-01-00 Cadolzburg, DE
Abgasmessgeräte für − Abgasmessgeräte für Fremdzündungsmotor Kohlenstoffmonoxid Kohlenstoffmonoxid CO Kohlenstoffdioxid CO2 + 3 more
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AVL IBERICA

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ENAC LC10.240 Valladolid, ES
CEM ME-003
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AWE

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UKAS 1854 Reading, GB
(HSG 248) – 2021 LQP007 based on HSG 248 LQP003 based on HSG 248 (PCM) based on HSG 248
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AWE PLC – Defence Radiation Protection Services (DRPS)

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UKAS 0477 Gosport, GB
the guidance of GPG 14 PERSONAL DOSE EQUIVALENT: RESPONSE:
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Abbey Industrial Solutions

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UKAS 31383 Wakefield Europort, GB
TORQUE
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Absolute Calibration

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UKAS 0078 Portchester, GB
DC Resistance CFH-Gen, Macula-Degeneration DC RESISTANCE (continued) DC VOLTAGE DC VOLTAGE (continued) + 3 more
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Acorn Analytical Services

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UKAS 2418 Cleckheaton, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227
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Acoustical Investigation & Research Organisation Ltd (AIRO)

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UKAS 0483 Hemel Hempstead, GB
ISO 11654 BS EN ISO 10140-2:2021 ISO 7171 ISO 354 BS EN ISO 10140-3:2021 + 3 more
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Acoustics Noise and Vibration

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UKAS 0653 Milton Keynes, GB
Sound Calibrators Pistonphones based: level Microphones + 2 more
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Acron Asbestos

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UKAS 8504 Glasgow, GB
(HSG 264:2012) HSG 227 Appendix 5: By HSG 227 Appendix 3: By
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Advanced Development & Safety Laboratories

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UKAS 9064 Paignton, GB
DIN EN ISO 11127-6 DIN EN 13727 1) BS EN ISO 11930:2019+ 2) QMIC WI 22, based on BS EN
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Ahlborn Meß- und Regelungstechnik

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DAkkS D-K-19342-01-02 Holzkirchen, DE
Taupunkttemperatur Railway braking — urban guided transport Temperaturtransmitter Widerstandssensor *) –30 °C + 3 more
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Air Surveys

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UKAS 0553 Wandsworth, GB
(HSG 248) – 2021 APP 7 based on HSG 248 (PCM) based on HSG 248 (PCM) based on HSG 248) APP 15 based on HSG 248 + 2 more
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Airborne Environmental Consultants

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UKAS 0232 Manchester, GB
(HSG 264, 2012)
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Airborne Environmental Consultants

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UKAS 2054 Manchester, GB
(HSG 248) – 2021 AEC 1 based on HSG 248 (PCM) based on HSG 248 AEC 6 based on HSG 248
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Airbus Defence and Space

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DAkkS D-K-18731-01-01 Manching, DE
- Gleichspannung / Messgeräte 1 µV Quellen > 1 V + 3 more
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Airsafe Analytical

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UKAS 4376 Alton, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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Airtech Analysis

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UKAS 0681 Writtle, GB
(HSG 248) – 2021 (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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Alfred H Knight Energy Services

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UKAS 1765 Kilmarnock, GB
BS ISO 18283:2022 ASTM D2234 (location E) ASTM D2013 (location B) BS ISO 5074:2015; and ASTM D409:2016 + 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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