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
🇩🇪 DIN EN 14198 🇬🇧 BS EN 14198 🇫🇷 NF EN 14198 🇮🇹 UNI EN 14198 🇪🇸 UNE EN 14198 🇳🇱 NEN EN 14198
1,560 Accredited labs
17 Countries

Showing 826–849 of 849 labs

europascal

Active
DAkkS D-K-15055-01-01 Hanau, DE
- Gleichspannung / Messgeräte > 0 V > 0,22 V > 2,2 V + 3 more
View Profile
DAkkS D-K-21048-01-00 Kirchzarten, DE
Positiver und negativer Positiver Überdruck p e 1) In den CMC sind die erweiterten Messu
View Profile

iKM Service

Active
DAkkS D-K-21115-01-00 Zwickau, DE
Industrielle Messtechnik ≤ 860 mm GmbH, Oberkochen, D
View Profile

iLF Magdeburg

Active
DAkkS D-PL-18869-01-01 Magdeburg, DE
DIN EN ISO 9117-3 DIN EN ISO 9117-5 DIN EN ISO 1463 DIN EN ISO 2808 DIN EN ISO 2178 + 3 more
View Profile
DAkkS D-K-17060-01-00 Tettnang, DE
Taupunkttemperatur –0,91 bar bis Positiver und negativer Überdruck p *) (ein- oder mehrgängige + 3 more
View Profile

ift Rosenheim

Active
DAkkS D-PL-11349-01-01 Rosenheim, DE
ASTM E 330/E 330M ASTM E 283/E283M DIN 4103-1 DIN 68706-1 UNE-EN 12211 + 3 more
View Profile
DAkkS D-PL-21129-01-03 Gießen, DE
DIN EN ISO 5667-1 (A 4) DIN ISO 5667-5 (A 14) DIN EN ISO 5667-3 (A 21) DIN EN ISO 19458 (K 19) DIN 19643-1 + 3 more
View Profile
DAkkS D-K-15219-01-02 Helmstadt, DE
Taupunkttemperatur fixpunktzellen Railway braking — urban guided transport Railway vehicle body structural requirem SPRT-Sensor + 3 more
View Profile
DAkkS D-K-19194-01-00 Idstein, DE
Absolutdruck p abs > 0,8 bar > 1,2 bar > 20 bar + 3 more
View Profile

iocto

Active
DAkkS D-K-21204-01-00 Hofheim am Taunus, DE
Taupunkttemperatur direktanzeigende −45 °C Railway vehicle body structural requirem Widerstandssensor direktanzeigende > 200 °C + 3 more
View Profile
DAkkS D-ML-13309-01-00 Dresden, DE
Basophile Eosinophile Erythrozyten Hämatokrit Leukozyten + 3 more
View Profile
DAkkS D-ML-19652-01-00 Frankfurt, DE
Großes Blutbild TSH Immunglobulin E 25-OH-Vitamin D Vitamin B12 + 3 more
View Profile
DAkkS D-ML-13067-01-00 Berlin, DE
Basophile Eosinophile Erythrozyten Hämatokrit Leukozyten (Zellzahl) + 3 more
View Profile

qbig

Active
DAkkS D-K-21619-01-00 Leer, DE
Durchflussmess- 13 m³/h - Hochspannungsmessgrößen > 25 m³/h Volumendurchfluss > 40 m³/h + 3 more
View Profile

seca

Active
DAkkS D-K-22590-02-01 Hamburg, DE
nichtselbsttätige elektronische Waagen − Waagen
View Profile
DAkkS D-K-21353-01-01 Manching-Oberstimm, DE
Absolutdruck 10 hPa Relativdruck −1 000 hPa Durchfluss von Gasen + 3 more
View Profile
DAkkS D-PL-12064-01-01 Bonn, DE
DIN EN 55016-1-4 VDE 0877-16-1-4 DIN EN 55016-2-1 VDE 0877-16-2-1 DIN EN 55016-2-2 + 3 more
View Profile
DAkkS D-ML-13149-01-00 München, DE
Blutungszeit 5-Hydroxyindolessigsäure Aminosäuren Carbohydrate-Deficient-Transferrin Everolimus + 3 more
View Profile
DAkkS D-K-15210-01-00 München, DE
Gleichspannung 0,01 V Messgeräte 0,33 V 3,3 V 330 V Gleichstromstärke 30 µA + 3 more
View Profile

velotech.de

Active
DAkkS D-PL-17439-02-00 Schweinfurt, DE
DIN EN ISO 4210-1 DIN EN 15194: 2018 DIN 33946 DIN EN 15918 DIN EN ISO 11243 + 3 more
View Profile
DAkkS D-PL-17881-01-01 Darmstadt, DE
ISO 534 ISO 536 rs11887534 HABP2-Gen (c.1601G>A) rs7080536 ISO 1974 + 3 more
View Profile
DAkkS D-ML-13062-01-00 Köln, DE
Liste aller Untersuchungsverfahren Webpräsenz des Medizinischen Laboratoriu Cannabinoide (Cannabinol, Cannabidiol) Cannabinoide (THC) Cannabinoide (THC-COOH) + 3 more
View Profile
DAkkS D-ML-19859-01-00 Bochum, DE
Adrenalin Amiodaron, Desmethylamiodaron CDT Amiodaron, Desethylamiodaron Dopamin + 3 more
View Profile
DAkkS D-ML-13403-01-00 Dortmund, DE
11-Desoxycortisol Acylcarnitine Agomelatin Albendazolsulfoxid a-Hydroxy-Alprazolam + 3 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