UIC 541-04

Automatic Variable Load Brake Testing

This test defines specifications for automatic variable load braking systems that adjust braking force proportionally to the vehicle's loading condition, optimizing stopping distance and wheel adhesion. The standard covers the design, functionality, and performance requirements of automatic load-sensing brake control equipment fitted to freight and passenger trains. Testing verifies that braking force automatically adjusts across the range from empty to fully loaded conditions, enhancing safety and reducing wheel slide risk. Accreditation for this test is critical for manufacturers of brake control systems and railway operators ensuring consistent, safe braking performance regardless of train loading.

What it measures

  • Load-proportional braking force adjustment mechanisms
  • Response characteristics across loading range
  • Wheel adhesion optimization and anti-lock performance
  • System reliability and fail-safe functionality
  • Pressure modulation and control accuracy
🇧🇪 NBN EN 14198 🇩🇪 DIN EN 14198 🇬🇧 BS EN 14198 🇫🇷 NF EN 14198 🇮🇹 UNI EN 14198 🇪🇸 UNE EN 14198 🇳🇱 NEN EN 14198
2,795 Accredited labs
21 Countries

Showing 2,626–2,650 of 2,795 labs

VKTA - Strahlenschutz, Analytik & Entsorgung Rossendorf e.V. Labor für Umwelt- und Radionuklidanalytik

Active
DAkkS D-PL-14498-01-02 Dresden, DE
DIN EN 12880 DIN EN 12004-2 DIN EN ISO 17892-4 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) + 3 more
View Profile

VKTA-Strahlenschutz, Analytik & Entsorgung Rossendorf e. V. Inkorporationsmessstelle

Active
DAkkS D-PL-14498-02-00 Dresden, DE
Aktivität inkorporierter Radionuklide
View Profile

VL Thermo Solutions

Active
DAkkS D-PL-21133-01-00 Versmold, DE
DIN EN 1815 DIN 8959 DIN SPEC 91323 DIN 8959 Ber. 1 DIN 1815 + 1 more
View Profile

VLAAMSE MAATSCHAPPIJ VOOR WATERVOORZIENING (De Watergroep) cv - Centraal laboratorium

Active
BELAC 201-TEST Heverlee, BE
ISO 19458 Multiparameterkit cfr. WAC/I/A/011 CMA/2/I/A.3 , WAC/III/A/001 WAC/I/A/001 WAC/III/D/002 + 3 more
View Profile

VOLKSWAGEN AKTIENGESELLSCHAFT TE, 011-17850, Messtechnik/Kalibrierung

Active
DAkkS D-K-18263-01-02 Wolfsburg, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Railway composite brake blocks — require Absolutdruck p * Kraft + 3 more
View Profile

VSL

Active
RvA K999 Delft, NL
albicans, Chlamydia pneumoniae, Chlamydi HCS LF 1 3 HCS LF 3 2 HCS LF 3 3 HCS LF 4 2 + 3 more
View Profile

VWR International

Active
UKAS 0593 Lutterworth, GB
TEMPERATURE parameters and ranges) indicators or recorders WEIGHING INSTRUMENTS
View Profile

VYNOVA BELGIUM nv

Active
BELAC 217-TEST Tessenderlo-Ham, BE
ISO 10523 WAC/III/A/003 WAC/III/D/001 WAC/III/D/002 WAC/III/A/005 + 3 more
View Profile

Valitech

Active
DAkkS D-PL-18539-01-00 Falkensee, DE
DIN EN ISO 10993-5 DIN EN ISO 10993-1 DIN EN 868-5 DIN EN 13060 DIN EN ISO 15883-7 + 3 more
View Profile

Vantify

Active
UKAS 7892 Stoke Prior, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004)
View Profile

VdS Schadenverhütung GmbH Prüflaboratorien

Active
DAkkS D-PL-11149-01-01 Köln, DE
DIN EN ISO 6988 VDE 0468-2-1 DIN EN IEC 60068-2-11 DIN EN 60068-2-30 DIN EN 60068-2-42 + 3 more
View Profile

Vectoflow

Active
DAkkS D-K-21643-02-00 Gilching, DE
− Strömungsgeschwindigkeit von Gasen Strömungsgeschwindigkeit am Standort Vectoflow Windtunnel A, Frie von Gasen 15 m/s bis > 38 m/s + 3 more
View Profile

Velindre University NHS Trust

Active
UKAS 9326 Talbot Green, GB
Whole Blood Blood grouping: A, B, O, Rh 9326 Pontyclun | [email removed] ABO | Beckman Coulter PK7400 analyser Rh D | 210/AUT Rh D | 211/AUT + 3 more
View Profile

Verein des Hygiene-Instituts des Ruhrgebiets e.V. Hygiene-Institut des Ruhrgebiets

Active
DAkkS D-PL-13042-02-01 Gelsenkirchen, DE
DIN EN 27888 DIN EN ISO 18593 DIN EN ISO 19458 ASTM E 114-20 DIN EN 932-2 + 3 more
View Profile

Versuchs- und Lehranstalt für Brauerei in Berlin (VLB) e. V.

Active
DAkkS D-PL-14173-01-03 Berlin, DE
DIN EN ISO 19458 DIN EN ISO 6508-1 DIN ISO 5667-5 DIN EN ISO 19458 (K 19) DIN EN ISO 11731 (K 23) + 3 more
View Profile

Vibration Research Europe

Active
DAkkS D-K-22858-01-01 Neustadt b. Coburg, DE
Railway brake — magnetic track brakes (U - Gleichspannung - Wechselspannung auch Vor-Ort Kalibrierung − Frequenz und Drehzahl
View Profile

Vincentius-Diakonissen-Kliniken gemeinnützige AG Zentrallabor

Active
DAkkS D-ML-13393-01-00 Karlsruhe, DE
Absolutdruck tration von Harnsäure tration von Harnstoff Digitoxin Digoxin + 3 more
View Profile

Vine Consultant Services

Active
UKAS 10213 Sawbridgeworth, GB
5 of HSG 227 (2004)) (HSG 264:2012)
View Profile

Vintec Laboratories

Active
UKAS 1249 Garston, GB
(HSG 248) – 2021 (PCM) based on HSG 248 P052 based on HSG 248
View Profile

Viro Vet Diagnostik

Active
DAkkS D-PL-18166-01-00 Gießen, DE
zytopathogene Viren nicht-zytopathogene Pestiviren Influenzavirus A/equi-1 A/equi-2 Viruspartikel FCoV (AK) (Feline Coronaviren) + 3 more
View Profile

Visithealth

Active
UKAS 22522 London, GB
Combined Nasopharyngeal & Detection of S Oropharyngeal (Nose & Throat) 19) virus
View Profile

Vistec Electron Beam

Active
DAkkS D-K-18737-01-01 Jena, DE
Winkel > 10 µm Position − Permanentes Laboratorium Positionen und Abstände + 3 more
View Profile

Vrije Universiteit Brussel – Vestigingsplaats UZ Brussel

Active
BELAC 141-TEST Brussel, BE
See CU-UK-DTA-5 | Holland kits
View Profile

W H Stephens

Active
UKAS 7855 Belfast, GB
(HSG 264, 2012)
View Profile

WAAGEN-SANDER

Active
DAkkS D-K-20038-01-01 Stade, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) − Waagen Optoelektronische + 1 more
View Profile

No matching labs found.

Industries

Railway rolling stock manufacturers Brake control system suppliers Freight train operators Passenger rail services Railway certification and safety authorities

Related Standards

  • UIC 541-01 Railway brakes — Braking power
  • UIC 541-05 Railway brakes — Anti-slide device
  • EN 14198 Railway applications — Wheelsets and bogies — Safety requirements for thermal management

Other Test Methods

0 labs selected
Compare