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
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DAkkS D-PL-22057-01-01 Ludwigsburg, DE
DIN EN 1371-1 DIN EN 15194: 2018 DIN EN ISO 11243 DIN EN ISO 4210-1 DIN 79010 + 3 more
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Ethanol tration von Harnsäure tration von Harnstoff Creatinin Digitoxin + 3 more
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DIN EN ISO 2719 DIN EN ISO 13720 DIN EN ISO 11885 DIN 51086-2 DIN EN ISO 21078-1 + 3 more
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DAkkS D-ML-13117-01-00 Regensburg, DE
angeborener Chromosomensatz Glut1-Defizienz-Syndrom Adrenogenitales Syndrom ATP7B; Morbus Wilson Mukoviszidose + 3 more
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DAkkS D-ML-21320-01-01 Tübingen, DE
angeborener Chromosomensatz Mikrosatelliten-Instabilität SMN1; Spinale Muskelatrophie Rhesusfaktor Chorea Huntington (HTT) + 3 more
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Hämoglobin Thrombozytenfunktion Thrombozytenaggregation Thrombozyten Automatisches Blutbild + 3 more
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DAkkS D-K-15186-01-01 Bitterfeld-Wolfen, DE
Railway vehicles — specific test require Railway maintenance — track geometry (EN - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand + 3 more
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DAkkS D-K-15186-01-02 Bitterfeld-Wolfen, DE
Salt spray / neutral salt fog test (ISO Vibration measuring instruments — test m Railway braking — urban guided transport Railway bogies — wheelsets and bogies st Railway braking — thermal analysis (EN 1 + 3 more
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DAkkS D-ML-13153-01-00 Jena, DE
Matrix M.21: Absolute Messunsicherheit d angeborener Chromosomensatz erworbener Chromosomensatz BCR::ABL Fusion Peutz-Jeghers-Syndrom (STK11) + 3 more
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DAkkS D-K-18080-01-00 Friedrichshafen, DE
Railway maintenance — track geometry (EN 1) In den CMC sind die erweiterten Messu Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 1350 mm + 3 more
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DAkkS D-K-19937-01-02 Losheim am See, DE
Railway brake — anti-slide device (UIC 5 Messsysteme positiver Überdruck Gaskonzentration Kohlenstoffmonoxid CO + 3 more
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ZwickRoell

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DAkkS D-K-18351-01-00 Ulm, DE
Sound intensity — scanning method (ISO 9 Acoustics — tonality assessment (DIN 456 Railway braking — urban guided transport Railway vehicle body structural requirem messeinrichtungen von + 3 more
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DAkkS D-ML-13280-01-00 Hamburg, DE
Traversen-geschwindigkeit (ein- oder mehrgängige Ethanol Plasma, Serum, Plasma tration von Harnsäure + 3 more
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DAkkS D-ML-13432-01-00 Würzburg, DE
tration von Harnsäure tration von Harnstoff Digitoxin Digoxin HbA1c + 3 more
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DAkkS D-ML-13131-02-01 Hannover, DE
Absolutdruck tration von Harnsäure tration von Harnstoff 9 HbA1c + 3 more
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DAkkS D-ML-13131-01-01 Göttingen, DE
Ethanol Absolutdruck tration von Harnsäure tration von Harnstoff Digitoxin + 3 more
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DAkkS D-ML-20928-01-01 Jena, DE
tration von Harnsäure tration von Harnstoff HbA1c Hydroxy-progesteron Testosteron + 3 more
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DAkkS D-ML-13318-01-00 Halle (Saale), DE
Absolutdruck tration von Harnsäure tration von Harnstoff Digitoxin HbA1c + 3 more
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DAkkS D-ML-18746-01-01 Fürstenfeldbruck, DE
Absolutdruck tration von Harnsäure tration von Harnstoff Digitoxin Digoxin + 3 more
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DAkkS D-ML-20700-01-00 Hamburg, DE
Traversen-geschwindigkeit (ein- oder mehrgängige Ethanol Plasma, Serum, Plasma tration von Harnsäure + 3 more
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DAkkS D-PL-12130-01-00 Regensburg, DE
DIN EN 60068-2-14 DIN EN 60068-2-67 IEC 60068-2-2 IEC 60068-2-14 IEC 60068-2-67 + 3 more
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DAkkS D-PL-14166-01-01 Fürth in Bayern, DE
DIN EN ISO 11997-2 DIN ISO 16000-18 DIN ISO 16000-20 DIN ISO 16000-21 DIN ISO 16000-3 + 3 more
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DAkkS D-PL-17580-01-00 Reppenstedt, DE
DIN ISO 9613-2 * IEC 61400-12-1 * IEC 61400-50 * IEC 61400-50-1 * IEC 61400-50-2 * + 3 more
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bactologicum

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DAkkS D-PL-22114-01-01 Hamburg, DE
10/1500 DIN EN IEC 60601-2-75 IEC 60127-6 DIN EN 1040 DIN EN 13697 + 3 more
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DAkkS D-K-15056-01-00 St. Georgen, DE
Railway maintenance — track geometry (EN DIN EN ISO 3650:1999 Kalibrierung der 0,01 mm Optische > 300 mm + 3 more
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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

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