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 2,551–2,575 of 2,795 labs

DAkkS D-ML-13060-04-00 Heidelberg, DE
fixpunktzellen CH 50 GARS1, GDAP1, GJB1, LITAF, MPZ, PMP22, S MYBPC3 Rhesusfaktor D + 3 more
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DAkkS D-ML-13060-01-00 Heidelberg, DE
Traversen-geschwindigkeit Drehmomentmesseinri Absolutdruck Bereiche Plasma, Serum, Plasma + 3 more
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DAkkS D-ML-13144-05-00 Jena, DE
angeborener Chromosomensatz erworbener Chromosomensatz BCR::ABL Fusion Peutz-Jeghers-Syndrom (STK11) (APC, MUTYH) + 3 more
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DAkkS D-ML-13144-04-00 Jena, DE
Immunglobulin G (IgG) Staphylococcus aureus Mykobakterien Clostridioides difficile-GDH Thrombozytäre Antikörper + 3 more
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DAkkS D-ML-13144-06-00 Jena, DE
Zelldifferenzierung Phänotypisierung Thrombozytäre Antikörper Direkter Coombstest AB0-System + 3 more
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DAkkS D-ML-13144-07-01 Jena, DE
Ethanol tration von Harnsäure tration von Harnstoff pH-Messgeräte 1,68 pH bis 10 pH Digitoxin + 3 more
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DAkkS D-ML-13253-06-01 Köln, DE
A1/A2-/ H Austestung Familiärer Brust- und Eierstockkrebs Familiäres Brust- und Ovarialkarzinom BRAF-Genanalyse komplette Genanalyse, Prädiktive + 3 more
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DAkkS D-ML-13253-08-00 Köln, DE
Standort: Albert-Schweitzer-Campus SMN1; Spinale Muskelatrophie (SMN1, SMN2) CBAVD (CFTR) kongenitale Taubheit (GJB2 ) + 3 more
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DAkkS D-ML-13253-04-00 Köln, DE
Ethanol Absolutdruck Plasma, Serum, Plasma tration von Harnsäure tration von Harnstoff + 3 more
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DAkkS D-ML-13253-03-01 Köln, DE
Carbapenemase-bildende MRSA aerob wachsende Bakterien Bakterien, Sprosspilze Bakterien, Pilze + 3 more
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DAkkS D-ML-13253-07-00 Köln, DE
Zelldifferenzierung Lymphozytendifferenzierung ASXL-1 bei V.a. MDS JAK2 V617F NPM1 + 3 more
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DAkkS D-ML-13195-02-00 Leipzig, DE
Stimulation mit Antigenen Zellzahlbestimmung Lymphozyten Subpopulationen Mycobacterium tuberculosis, Aktivierung Aktivierung (CD63-Expression) + 3 more
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DAkkS D-ML-13195-05-00 Leipzig, DE
Ethanol tration von Cholesterol tration von Harnsäure tration von Harnstoff pH - Wert + 3 more
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DAkkS D-ML-13195-08-00 Leipzig, DE
Ovarialkarzinom (ATM, BRCA1, BRCA2, BRIP Kolonkarzinom mit Polyposis (APC, BMPR1A (CFTR) Whole Exome Sequenzierung (WES) Cystische Fibrose Panel + 3 more
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DAkkS D-ML-13195-02-01 Leipzig, DE
Zellzahlbestimmung HLA-B27 auf T-Zellen Intrazellulärer Zytokine Oxidativer Burst der Granulozyten CD40 Ligand + 3 more
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DAkkS D-ML-13195-01-00 Leipzig, DE
Borrelia burgdorferi IgG, Antikörperinde Enterovirus- RNA Adenovirus Mykobakterien Genotypisierung Masernvirus + 3 more
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DAkkS D-ML-13195-06-00 Leipzig, DE
Zelldifferenzierung Isoagglutinine Kreuzprobe Thrombozytäre Antikörper HBs-Ag (qualitativ) + 3 more
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DAkkS D-ML-13264-01-00 Magdeburg, DE
Hämoglobin Erythrozyten Retikulozyten Thrombozyten Differentialblutbild + 3 more
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DAkkS D-ML-13264-04-00 Magdeburg, DE
Glut1-Defizienz-Syndrom Familiärer Brust- und Eierstockkrebs Mukoviszidose Pankreatitis GLA; Morbus Fabry + 3 more
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DAkkS D-ML-13264-03-01 Magdeburg, DE
(ein- oder mehrgängige Ethanol tration von Harnsäure tration von Harnstoff pH - Wert + 3 more
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DAkkS D-ML-13200-01-00 Mannheim, DE
tration von Harnsäure tration von Harnstoff pH-Messgeräte 1,68 pH bis 10 pH Digitoxin Digoxin + 3 more
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DAkkS D-ML-13021-03-01 Münster, DE
Anstiegszeit t r 10 mm vom Nennmaß des OMIM*601130, CYP2C19 ACTA2 ACTC1 + 3 more
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DAkkS D-ML-13021-07-01 Münster, DE
Osmotische Erythrozytenresistenz Immunglobulin G (IgG) Streptokokken Staphylococcus aureus aerob wachsende Bakterien + 3 more
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DAkkS D-PL-13021-01-00 Münster, DE
Ethanol Hämoglobin Amphetamine Cannabinoide Myoglobin + 3 more
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DAkkS D-ML-13021-11-00 Münster, DE
(ein- oder mehrgängige Ethanol Absolutdruck Plasma, Serum, Plasma tration von Harnsäure + 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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