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-ML-13021-10-01 Münster, DE
Osmotische Erythrozytenresistenz Immunglobulin G (IgG) Streptokokken Staphylococcus aureus aerob wachsende Bakterien + 3 more
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DAkkS D-ML-13021-09-00 Münster, DE
Anti-HAV CMV EBV Enterovirus SARS-CoV-2 + 3 more
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DAkkS D-ML-13021-01-00 Münster, DE
(ein- oder mehrgängige Ethanol Absolutdruck Plasma, Serum, Plasma tration von Harnsäure + 3 more
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DAkkS D-ML-13084-02-00 Regensburg, DE
(ein- oder mehrgängige Ethanol tration von Harnsäure tration von Harnstoff pH-Messgeräte 1,68 pH bis 10 pH + 3 more
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DAkkS D-ML-13084-04-00 Regensburg, DE
Whole-Exome-Sequenzierung Ovarialkarzinom (Panel) (WES): SNV, CNV Familiäres Brust- und Companion Diagnostik bei + 3 more
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DAkkS D-ML-13084-03-00 Regensburg, DE
Periodendauer 400 ns bis 5 s (Härteskalen HV 0,1 bis HV 3) Osmotische Erythrozytenresistenz Immunglobulin G (IgG) Immunglobulin M (IgM) + 3 more
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DAkkS D-ML-13069-04-01 Kiel, DE
Zelldifferenzierung Blutsenkungsreaktion Albumin PNH OMIM*147700, IDH2 + 3 more
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DAkkS D-ML-13069-06-00 Lübeck, DE
Faktor VII Gewebstransglutaminase Antigene Anti-glomeruläre Basalmembran Gesamt IgE + 3 more
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DAkkS D-ML-13069-18-01 Lübeck, DE
Standort: Albert-Schweitzer-Campus angeborener Chromosomensatz erworbener Chromosomensatz Fra(X)-Syndrom, FXTAS (FMR1) Friedreich Ataxie (FXN) + 3 more
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DAkkS D-ML-13069-02-01 Kiel, DE
tration von Harnsäure Digitoxin Digoxin HbA1c Aldosteron + 3 more
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DAkkS D-ML-13069-08-00 Kiel, DE
Streptokokken Staphylococcus aureus aerob wachsende Bakterien Bakterien, Sprosspilze Dermatophyten + 3 more
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DAkkS D-ML-13130-02-00 Tübingen, DE
Ethanol Absolutdruck 0,11 k tration von Harnsäure tration von Harnstoff + 3 more
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DAkkS D-ML-13130-04-00 Tübingen, DE
Whole-Exome-Sequenzierung Hereditäres Magenkarzinom (CDH1) Peutz-Jeghers-Syndrom (STK11) Cowden-Syndrom (PTEN) Li-Fraumeni-Syndrom (TP53) + 3 more
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DAkkS D-ML-13130-01-00 Tübingen, DE
Kapseltyp B, Neisseria meningitidis Staphylococcus aureus Cryptococcus neoformans aerob wachsende Bakterien Bakterien, Sprosspilze + 3 more
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DAkkS D-ML-13130-03-01 Tübingen, DE
Anti-HBc Anti-HBe Anti-HBs CMV Synthetische Cannabinoide, qualitativ + 3 more
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DAkkS D-ML-13130-07-00 Tübingen, DE
Whole-Exome-Sequenzierung Hereditäres Magenkarzinom (CDH1) Peutz-Jeghers-Syndrom (STK11) Cowden-Syndrom (PTEN) Li-Fraumeni-Syndrom (TP53) + 3 more
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DAkkS D-ML-13130-05-00 Tübingen, DE
Basophile Granulozyten S 100 deaminiertes Gliadin-IgA-AK deaminiertes Gliadin-IgG-AK PM-Scl + 3 more
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DAkkS D-ML-13294-08-00 Ulm, DE
a), b) Zelldifferenzierung CD34+ Stammzellen Dysplasie. X-chromosomal G6PC1; Glykogen-Speicherkrankheit + 3 more
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DAkkS D-ML-13294-03-01 Ulm, DE
% (Hz) 0 | ± 1 homogene Spinobulbäre Muskelatrophie HD; Chorea Huntington SMN1; Spinale Muskelatrophie + 3 more
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DAkkS D-ML-13294-07-00 Ulm, DE
Streptokokken Cryptococcus neoformans MRSA aerob wachsende Bakterien Bakterien, Sprosspilze + 3 more
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DAkkS D-ML-13294-06-00 Ulm, DE
Dermatophyten Treponema pallidum Allergenspezifisches IgE Hefen spezifisches IgG + 3 more
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DAkkS D-ML-13294-01-01 Ulm, DE
(ein- oder mehrgängige Absolutdruck tration von Harnsäure tration von Harnstoff Digitoxin + 3 more
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DAkkS D-ML-13220-04-00 Homburg, DE
Plasmodium spp. (Malaria) HLA-B27 CD45 Percp+CD4+CD8 CD45 Percp+CD16+56+CD3 CD4 + 3 more
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DAkkS D-ML-13220-01-01 Homburg, DE
(ein- oder mehrgängige Ethanol Absolutdruck tration von Harnsäure tration von Harnstoff + 3 more
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DAkkS D-ML-13161-02-00 Göttingen, DE
Komplex angeborener Chromosomensatz Glut1-Defizienz-Syndrom Familiärer Brust- und Eierstockkrebs ATP7B; Morbus Wilson + 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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