UIC 541-1

Railway Brake Blocks Homologation Testing

This test establishes the homologation (type approval) conditions and performance criteria for new types of brake blocks intended for use on European railway vehicles. It defines the testing protocols, acceptance criteria, and documentation requirements that manufacturers must meet to gain approval for market use. Brake blocks must demonstrate consistent friction coefficient, wear resistance, thermal stability, and compatibility with various disc types and operating conditions. Accreditation for homologation testing is mandatory for brake block manufacturers and ensures that only proven, safe brake components are deployed on European rail networks, protecting operational safety and enabling interoperability.

What it measures

  • Friction coefficient (warm and cold conditions)
  • Wear rate and service life prediction
  • Thermal behavior and heat resistance
  • Dimensional stability and tolerances
  • Compatibility with standard disc materials and designs
🇩🇪 DIN EN 15877 🇬🇧 BS EN 15877 🇫🇷 NF EN 15877 🇮🇹 UNI EN 15877 🇪🇸 UNE EN 15877 🇳🇱 NEN EN 15877
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Nemko S.p.A. a socio unico

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ACCREDIA 00036 Biassono, IT
DIN EN 62368-1: 2016 DIN EN 61326-2-6 DIN EN 61010-2-101 EN IEC 62368-1 IEC 61326-2-6 + 3 more
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Nestlé Qualité Assurance Center

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COFRAC 1-0646 - Cergy Saint-Christophe, FR
DIN EN ISO 7932 DIN EN ISO 6888-1 ISO 15213-1 DIN ISO 16649-2 DIN EN ISO 6888-3 + 3 more
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Nichol & Clarke Environmental Services

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UKAS 32076 Clervaux Terrace, GB
(HSG 264, 2012)
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Niedersächsisches Landesgesundheitsamt

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DAkkS D-PL-17693-02-01 Hannover, DE
DIN EN ISO 15061 (D 34) DIN EN 27888 (C 8) DIN EN 1484 (H 3) ISO 5667-21 DIN 38404-C 10 + 3 more
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Nordwestdeutsche Zählerrevision Aug. Knemeyer

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DAkkS D-K-18679-01-02 Bad Laer, DE
− Durchfluss von Gasen Railway brakes — brake performance (UIC − Wärmezähler Volumendurchfluss und 25 L/h Volumen strömender + 3 more
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Normec DETS

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UKAS 2139 Consett, GB
BS 1377: Part 2: 1990 DIN EN 12457 No DETSC 5012 based on BS EN staining based on HSG 248. (HSG 248) – 2021 + 1 more
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Normec VRO

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RvA I203 Geldermalsen, NL
#EN ISO 5164:14 # EN 116-97 NEN 4400-1 # ISO 13736 #ISO 6618 + 3 more
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Normec Valitech

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DAkkS D-K-18539-01-00 Falkensee, DE
Tensile testing of metallic materials (I positiver Überdruck -0,01 bar Absolutdruck p abs Taupunkttemperatur + 3 more
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Norsonic-Tippkemper

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DAkkS D-K-15132-01-00 Oelde, DE
Akustik Übertragungsmaß von Messmikrofonen Messmikrofonen mit Dämpfung eines + 3 more
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North Star Environmental

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UKAS 7691 Shotton, GB
(HSG 248) – 2021 NSDOC 47 based on HSG 248 staining based on HSG 248. (PCM) based on HSG 248
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Not One Iota

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UKAS 8998 Portadown, GB
(HSG 248) – 2021 SOP-12, based on HSG 248 staining based on HSG 248 (PCM) based on HSG 248
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Nuclear Restoration Services

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UKAS 0573 Thurso, GB
AIR KERMA RATE AMBIENT DOSE HBs-Antigen (Hepatitis B-Surface RESPONSE: PERSONEL DOSE
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O.C. Consulting (UK)

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UKAS 0282 Harlow, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248
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OCA INSPECCIÓN, CONTROL Y PREVENCIÓN, S.A. (Unipersonal) (OCA GLOBAL)

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ENAC LE2316 Pozuelo de Alarcón, ES
UNE-EN 14385 UNE-EN 15259 UNE-EN 13211 BS ISO 9096:2017 UNE 77216 + 3 more
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OHEC (uk)

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UKAS 0394 Prestwich, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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OHS

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UKAS 21882 Manchester, GB
(HSG 264, 2012)
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ONNEKEN Meß- und Prüftechnik

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DAkkS D-K-15218-01-00 Friedrichsdorf (Taunus), DE
Druck 0,03 bar Absolutdruck Pabs > -0,3 bar > 3,0 bar > −0,02 bar + 3 more
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ONTRAS Gastransport

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DAkkS D-K-20502-01-01 Leipzig, DE
Positiver und negativer Positiver Überdruck p e −0,95 bar > 2,5 bar > 25 bar + 3 more
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OPTOLUTION Messtechnik

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DAkkS D-K-20427-01-00 Lörrach, DE
− Wärmezähler Durchflusssensoren als Teilgeräte von Wärme- und Kältezählern: + 3 more
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OTECH Environnement

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COFRAC 1-5809 Bruay La Buissiere, FR
DIN EN 27888 NF X 31-615 (Uniquement DIN EN ISO 10523
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Oelze Präzisions-Meßzeugfabrik

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DAkkS D-K-15021-01-01 Aschaffenburg, DE
Railway brake — magnetic track brakes (U − Ebenheit − Geradheit − Winkelnormale auch als Vor-Ort-Kalibrierung + 3 more
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Offshore Renewable Energy Catapult

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UKAS 2769 Blyth, GB
IEC 61400-23 ASTM G73 (2012) IEC 60885-3, 2.4.1 IEC 60502-2 IEC 60840 + 3 more
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Omgevingsdienst Midden- en West-Brabant

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RvA I073 Tilburg, NL
ISO 11819-1 (N 2 O) 0,000008 DIN EN ISO 16911-1 AG2 and IS EN 15259:2007 DIN EN 14790 + 3 more
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One Scientific

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UKAS 2048 Avonmouth, GB
ISO 6888-1 ISO 21528-2 BS ISO 4832:2006 ISO 4833-1 ISO 6579-1 + 3 more
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Optical Test & Calibration

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UKAS 0286 Bradford, GB
DC Resistance DC CURRENT DC VOLTAGE DC RESISTANCE (cont’d)
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Industries

Brake block material manufacturers Railway component suppliers Railway rolling stock manufacturers Railway operators and maintenance services Notified bodies and certification authorities

Related Standards

  • UIC 541-02 Railway brakes — Brake blocks
  • UIC 541-03 Railway brakes — Disc brake components
  • EN 15877 Railway applications — Brake blocks — Specification and approval of composite brake blocks for freight wagons

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