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
2,700 Accredited labs
20 Countries

Showing 2,676–2,700 of 2,700 labs

iki Institut für Krankenhaushygiene und Infektionskontrolle

Active
DAkkS D-PL-21129-01-03 Gießen, DE
10/1500 DIN EN ISO 19458 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) DIN EN ISO 5667-3 (A 21) + 3 more
View Profile

imat-uve

Active
DAkkS D-PL-14052-01-01 Mönchengladbach, DE
Bauart wie GR 1482 17 I/D rs1799752 AK gegen BP 180 rs2066845 OMIM# 188400, 192430 + 3 more
View Profile

imetrologie GmbH Institut für Metrologie und Prozesstechnologie

Active
DAkkS D-K-15219-01-02 Helmstadt, DE
Vibration measuring instruments — test m Acoustics — tonality assessment (DIN 456 Whole-body vibration — evaluation of hum Railway braking — urban guided transport Railway vehicle body structural requirem + 3 more
View Profile

innomatec Mess- und Schnellanschluss-Systeme

Active
DAkkS D-K-19194-01-00 Idstein, DE
Railway brakes — disc brake pads (UIC 54 Railway pantographs — requirements for m abs > 2,0 bar Druck −1,0 bar + 3 more
View Profile

innomatec Mess- und Schnellanschluss-Systeme

Active
DAkkS D-K-19194-01-01 Idstein, DE
abs > 2,0 bar Druck −1,0 bar > 0,0 bar > 20 bar + 3 more
View Profile

iocto

Active
DAkkS D-K-21204-01-00 Hofheim am Taunus, DE
Railway braking — urban guided transport Railway braking — urban guided transport Railway vehicle body structural requirem abs direktanzeigende > 200 °C + 3 more
View Profile

labopart - Medizinische Laboratorien

Active
DAkkS D-ML-13309-01-00 Dresden, DE
Ethanol Absolutdruck Plasma, Serum, Plasma tration von Harnsäure tration von Harnstoff + 3 more
View Profile

Infektiologikum Fachärzte für Innere Medizin, Mikrobiologie, Virologie und Infektionsepidemiologie sowie Laboratoriumsmedizin

Active
DAkkS D-ML-19652-01-00 Frankfurt, DE
Testosteron Folsäure Homocystein Thyroxin, freies (fT4) Urinsediment + 3 more
View Profile

mib Medizinisches Infektiologiezentrum Berlin

Active
DAkkS D-ML-13067-01-00 Berlin, DE
Railway running behaviour and bogies — t Plasma, Serum, Plasma tration von Harnsäure tration von Harnstoff pH-Messgeräte 1,68 pH bis 10 pH + 3 more
View Profile

muva kempten

Active
DAkkS D-PL-20469-01-01 Kempten, DE
DIN EN 15111 ISO 18787 DIN 10964 DIN EN ISO 4120 DIN EN ISO 6887-2 + 3 more
View Profile

qbig

Active
DAkkS D-K-21619-01-00 Leer, DE
Elektrische Messgrößen - Hochspannungsmessgrößen Volumendurchfluss − Hochspannungsmessgrößen Durchflussmess- 13 m³/h + 3 more
View Profile

seca

Active
DAkkS D-K-22590-02-01 Hamburg, DE
elektronische Waagen − Waagen nichtselbsttätige
View Profile

simtec Siebenlist Messtechnik

Active
DAkkS D-K-21353-01-01 Manching-Oberstimm, DE
Railway braking — urban guided transport Railway vehicle body structural requirem Railway pantographs — requirements for m positiver Überdruck Taupunkttemperatur + 3 more
View Profile

steep GmbH EMV-Zentrum

Active
DAkkS D-PL-12064-01-01 Bonn, DE
DIN EN 50155 VDE 0115-200 IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 + 3 more
View Profile

stichting star-shl

Active
RvA M025 Etten-Leur, NL
BS SOP004 using sandwich immunoassay Massaspectrometrie Bloedafname (extra-muraal) Chromatografie waaronder HPLC,UPLC,GC Semenanalyse incl. morfologie en motilit + 3 more
View Profile

synlab Medizinisches Versorgungszentrum Labor München Zentrum

Active
DAkkS D-ML-13149-01-00 München, DE
Antennenfaktor -regler mit einer > 0,03 L/min Aldosteron Cortisol Hydroxy-progesteron + 3 more
View Profile

tech-team Kalibrierlabor

Active
DAkkS D-K-15210-01-00 München, DE
- Gleichstromwiderstand 1) In den CMC sind die erweiterten Messu > 100 µA 330 V Wechselstromstärke 100 µA + 3 more
View Profile

velotech.de

Active
DAkkS D-PL-17439-02-00 Schweinfurt, DE
DIN EN 15194: 2018 DIN EN 15496 DIN EN 14619 DIN EN 15918 DIN 79008-1 + 3 more
View Profile

wbm Prüflabor

Active
DAkkS D-PL-11215-01-02 Eberswalde, DE
DIN EN 10160 DIN EN ISO 16810 DIN EN ISO 17637 DIN EN ISO 17638 DIN EN ISO 9934-1 + 3 more
View Profile

wfp Institut für Wellpappenforschung und -prüfung

Active
DAkkS D-PL-17881-01-01 Darmstadt, DE
HABP2-Gen (c.1601G>A) rs7080536 rs11887534 DIN EN ISO 16535 DIN EN 303-4 DIN EN 303-5 + 3 more
View Profile

ÖHMI Analytik

Active
DAkkS D-PL-14020-01-01 Magdeburg, DE
DIN EN 12879 DIN EN 12880 DIN EN ISO 19458 DIN EN ISO 11885 DIN EN ISO 10523 (C 5) + 3 more
View Profile

ÖP Öffentliche Prüfstelle für das Textilwesen der Hochschule Niederrhein

Active
DAkkS D-PL-19506-01-01 Mönchengladbach, DE
DIN EN 12681-1 ASTM D 3343 DIN EN 50491-5-1 DIN EN 1015-10 DIN EN 20105-A02 + 3 more
View Profile

Labor Wisplinghoff

Active
DAkkS D-ML-13062-01-00 Köln, DE
Railway running behaviour and bogies — t (ein- oder mehrgängige (DIN EN 61094-4:1996) Ethanol % (Hz) 0 | ± 1 + 3 more
View Profile

Überörtliche Berufsausübungsgemeinschaft Fachärzte für Laboratoriumsmedizin und Mikrobiologie

Active
DAkkS D-ML-19859-01-00 Bochum, DE
(ein- oder mehrgängige IRHD - L 10 IRHD-L % (Hz) 0 | ± 1 tration von Harnsäure tration von Harnstoff + 3 more
View Profile

Überörtliche Berufsausübungsgemeinschaft MVZ Eberhard & Partner Dortmund

Active
DAkkS D-ML-13403-01-00 Dortmund, DE
Absolutdruck tration von Harnsäure tration von Harnstoff pH - Wert homogene + 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