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

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DAkkS D-ML-13102-08-01 Frankfurt, DE
Thyreoidea stimulierendes Thyreotropes Hormon (TSH) 17-Hydroxyprogesteron Immunreaktives Trypsin Pancreatitis-assoziiertes + 3 more
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Antistreptolysin (ASL) Antistaphylosin (AST) Candida spp.-Antikörper Echinokokken-Antikörper Kryptokokken-Antigen + 3 more
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DAkkS D-ML-13102-03-00 Frankfurt am Main, DE
Adenovirus-Antigen Astrovirus Antigen Chikungunya-Virus-Antikörper Immunglobulin M (IgM) Coxsackie A9, A24, B, B1, B5, B6 Virus-A + 3 more
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DAkkS D-ML-13102-04-00 Frankfurt am Main, DE
D-Dimere Freies Protein-S Antigen Protein S Antigen frei vWV:Ag Hemmkörper + 3 more
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Basophile Basophile absolut Eosinophile Eosinophile absolut Erythrozyten + 3 more
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Charakterisierung von akuten Akuten Leukämien B-Zellzahl (Immunstatus manuelles Differentialblutbild Zellzahlbestimmung + 3 more
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DAkkS D-ML-13134-02-01 Freiburg, DE
Cardiolipin-Antikörper Leptospiren-Antikörper Shigellen (O-Antigene) Treponema pallidum-Antikörper Borrelien IgG + IgM + 3 more
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DAkkS D-ML-13134-03-01 Freiburg, DE
anti-CMV IgG anti-CMV IgM CMV IgG Avidität Chikungunya Virus IgG Chikungunya Virus IgM + 3 more
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DAkkS D-ML-13134-05-00 Freiburg, DE
HLA-Antikörpertestung (Detektion) HLA-Antikörpertestung (Spezifizierung Klasse I und (Spezifizierung komplementbindender Antikörper + 3 more
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DAkkS D-ML-13134-10-01 Freiburg, DE
NGS-Panel-Analyse (SNVs, Indels CNVs), Gene: WDR73, WNT4, WNT5A, XRCC4, YY1, ZMPSTE24 PYCR1, RNF213, ROBO4, SETD5, SLC2A10, SL GPC3, HERC1, HIST1H1E, NFIX, OFD1, RNF13 + 3 more
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DAkkS D-ML-13134-06-01 Freiburg, DE
RPL27, RPL3, RPL31, RPL34, RPL35, RPL35A Diamond-Blackfan-Anämie ; DBA NOP10, PARN, RPA1, RTEL1, SAMD9, SAMD9L, Dyskeratosis congenita; DC Panel NOP10, PARN, POT1, RPA1, RTEL1, SAMD9, S + 3 more
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DAkkS D-ML-13134-09-00 Freiburg, DE
Urinstatus Leukozyten Neutrophile Granulozyten Eosinophyle Granulozyten Basophile Granulozyten + 3 more
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DAkkS D-ML-13134-07-00 Freiburg, DE
Differenzierung peripheres Erstellung eines Differentialblutbilds Differenzierung Knochenmark Pappenheim-Färbung Peroxidase-Reaktion + 3 more
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DAkkS D-ML-13134-12-00 Freiburg, DE
HLA-Antikörpertestung (Detektion) HLA-Antikörpertestung (Spezifizierung Klasse I und (Spezifizierung komplementbindender Antikörper + 3 more
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DAkkS D-ML-13304-04-01 Marburg, DE
Anaerobier-Resistenz Bakterien-Resistenz Hefen-Resistenz Carbapenemasenachweis Cryptosporidien, Giardia + 3 more
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DAkkS D-ML-13304-03-00 Gießen, DE
Thrombozyten Zellzählung und -differenzierung Calcium, ionisiert Natriumchlorid Glukose + 3 more
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DAkkS D-ML-13304-07-01 Gießen, DE
DPYD-Genotypisierung vor 5 FU Therapie, SNV Polyposissyndrome (APC, BMPR1A, MUTYH, N (Custom made by TWIST), SNV Hereditärer Darmkrebs inklusive + 3 more
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DAkkS D-ML-13304-01-00 Gießen, DE
Thrombozytenaggregation Arachidonsäure Kollagen/Epinephrin Ristocetin Erythrozyten + 3 more
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DAkkS D-ML-13304-09-01 Marburg, DE
9-OH-Risperidon/Paliperidon Aripiprazol Citalopram Clozapin, Norclozapin Cyclosporin (CSA) + 3 more
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DAkkS D-ML-13304-08-01 Marburg, DE
Borrelia burgdorferi Chlamydophila pneumoniae Coxiella burnetii Toxoplasma gondii Adenovirus + 3 more
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DAkkS D-ML-13304-10-00 Marburg, DE
Syndrom, Gene: AKT1, PIK3CA, PTEN, SEC23B Carney-Komplex, Gene: PRKAR1A, OMIM*600993, STK11 Cowden-Syndrom, Gene: AKT1, + 3 more
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DAkkS D-ML-13217-01-00 Halle (Saale), DE
Blutgruppe AB0 Rh-Faktor Rh-Formel Kell-Ag A-Untergruppe + 3 more
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DAkkS D-ML-13217-02-00 Halle (Saale), DE
Toxoplasmen-IgG Treponema pallidum-IgG anti-HBc AK anti-HBs AK anti-CMV IgG + 3 more
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DAkkS D-ML-13217-04-00 Halle (Saale), DE
DPYD (SNP-Analyse) JAK2 Kodon 617 Mutationsanalyse T-Zellklonalitätsanalyse (TCRG und TCRB) B-Zellklonalitätsanalyse (IGH, IGL, IGK) + 3 more
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DAkkS D-ML-13278-01-01 Hamburg, DE
Aminosäuren Second Tier Test IVA Screening (C5 -Carnitin Isobaren) 17-α-OH-Progesteron (17-OH-P) Biotinidase + 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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