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 926–950 of 1,560 labs

DAkkS D-ML-13168-08-01 Hannover, DE
Thrombozytenaggregationstest IgG Antikörper gegen Kollagen HLA-DR ADP Ristocetin + 3 more
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DAkkS D-ML-13168-03-00 Hannover, DE
Echinococcus-Antikörper Haemophilus influenzae Phänotypisierung Thrombozytäre Antikörper Salmonellen-Typisierung + 3 more
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DAkkS D-ML-13168-09-00 Hannover, DE
ABO-System lsoagglutinine (Serumeigenschaften) Rh-Merkmal D Kell-Merkmal K + 3 more
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DAkkS D-ML-13168-02-00 Hannover, DE
Toxoplasma gondii -Ak Treponema pallidum-AK Herpes-Simplex-Viren, Typen 2, Aciclovir-Resistenz Adenoviren + 3 more
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DAkkS D-ML-22843-01-01 Cottbus, DE
D-Dimer Gerinnungsfaktor XIII Protein S Fibrinmonomere Oligosaccharide + 3 more
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DAkkS D-ML-22843-02-00 Cottbus, DE
Aspergillus-Antikörper Brucella-Antikörper Candida dubliniensis Candida-Antikörper Cryptococcus Antigen + 3 more
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DAkkS D-ML-22289-01-00 Heppenheim (Bergstraße), DE
ALOT AML-ED/MRD BPDCN B-ALL-ED/MRD T-ALL-ED/MRD + 3 more
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DAkkS D-ML-13288-01-00 Bautzen, DE
Basophile Blutbildmessung (Automat) Eosinophile Erythrozyten Basophile Granulozyten + 3 more
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DAkkS D-ML-13288-02-01 Dresden, DE
Basophile Blutbildmessung (Automat) Eosinophile Erythrozyten Basophile Granulozyten + 3 more
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DAkkS D-ML-13291-01-00 Magdeburg, DE
Metanephrin, Normetanephrin VMS, 5-HIES, HVS 10-OH-Carbazepin 3-Methoxytyramin 9-OH-Risperidone + 3 more
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DAkkS D-ML-13414-01-00 Rostock, DE
PFA-Verschlusszeit 3-Methoxytyramin 5-Hydroxyindolessigsäure Adrenalin Dopamin + 3 more
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DAkkS D-ML-20110-01-01 Zwickau, DE
10-Hydroxycarbazepin (Eslicarbazepin) Amiodaron, Desmethylamiodaron CDT Amiodaron, Desethylamiodaron + 3 more
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DAkkS D-ML-13374-01-00 Kaiserslautern, DE
SNV-Genotypisierung (Nachweis Antithrombin-III-Mangel (in-house) (SERPINC1-Gen [OMIM *107300]) HIV-Wirtsresistenz + 3 more
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DAkkS D-ML-13078-01-00 Bielefeld, DE
Thrombozytenaggregation (induzierte) Carbazepin) 3-Methoxytyra min, freies 5-Hydroxy-lndolessigsäure + 3 more
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DAkkS D-ML-13315-01-01 Frankfurt/Main, DE
Eosinophile Neutrophile Granulozyten Thrombozyten, PAC-1 Bindung MCV Erythrozyten + 3 more
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DAkkS D-ML-19105-01-00 Ulm, DE
Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Lymphozyten Leukozyten + 3 more
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DAkkS D-ML-13165-01-00 Wiesbaden, DE
10-OH-Carbazepin Amiodaron, Desmethylamiodaron Carbamazepin-10,11-epoxid Coenzym Q10 Amiodaron, Desethylamiodaron + 3 more
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DAkkS D-ML-13169-01-00 Bad Oeynhausen, DE
Thrombozytenfunktion Amiodaron/Desethylamiodaron Cotinin Cyclosporin A Everolimus + 3 more
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DAkkS D-ML-21314-01-00 Ulm, DE
HbA1c Blutbild klein und groß Retikulozyten Thrombozyten Natriumchlorid + 3 more
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DAkkS D-ML-13239-01-00 Essen, DE
HbA1c Basophile Eosinophile Erythrozyten Basophile Granulozyten + 3 more
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DAkkS D-ML-13337-01-01 Herborn, DE
Kurzkettige Fettsäuren α1- Antitrypsin Humanes β-Defensin 2 sekretorisches IgA Calprotectin + 3 more
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DAkkS D-ML-13235-01-00 Kaiserslautern, DE
freies Protein S vWF-Aktivität (Ristocetin) Methylmalonsäure Amiodaron/Desethylamiodaron Ethosuxemid + 3 more
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DAkkS D-ML-21438-01-00 Dresden, DE
angeborener Chromosomensatz erworbener Chromosomensatz Aarskog-Scott Syndrom Laborpanel 1 FGD1 + 3 more
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DAkkS D-ML-20912-01-00 Köln, DE
B-Zellzahl (Immunstatus T-Non-Hodgkin-Lymphome Akute myeloische Leukämie Akute lymphatische Leukämie Multiples Myelom (Plasmazellen) + 3 more
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DAkkS D-ML-13073-01-00 Köln, DE
Automatisches Blutbild Differentialblutbild, prozentual Retikulozyten Zellzahl Natriumchlorid + 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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