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
1,323 Accredited labs
15 Countries

Showing 551–575 of 773 labs

DAkkS D-K-17616-01-01 Langenselbold, DE
- Gleichspannung Messgeräte 0,001 V bis 0,33 V bis 3,3 V bis 330 V bis + 3 more
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Thermo Sensor

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DAkkS D-K-18093-01-00 Werne, DE
Tensile testing of metallic materials (I Temperaturmessgrößen thermometer und Railway braking — urban guided transport Railway vehicle body structural requirem + 3 more
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DAkkS D-K-19243-01-00 Weilburg, DE
Vickers hardness test (ISO 6507) Taupunkttemperatur Widerstandssensor * –90 °C –80 °C –40 °C + 3 more
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DAkkS D-K-18223-01-02 Ilmenau, DE
Masse oder Konventioneller Wägewert/ Massenormal *) > 1 mg + 3 more
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DAkkS D-K-17246-01-00 Berlin, DE
Railway brake — magnetic track brakes (U Kraft (WPM) Länge (WPM) a) nur Vor-Ort-Kalibrierungen Vickers hardness test (ISO 6507) + 3 more
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Trescal

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DAkkS D-K-15015-01-01 Darmstadt, DE
- Gleichspannung / Messgeräte 10 V; 100 V; 1000 V > 100 mV > 0,22 V + 3 more
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DAkkS D-K-11109-01-02 Essen, DE
positiven Überdruck positiver Überdruck - Gleichstromstärke Kraft Schließ- und + 3 more
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DAkkS D-PL-11109-01-06 Essen, DE
ISO 26262-2 ISO 26262-3: ISO 26262-4 ISO 26262-5 ISO 26262-6 + 3 more
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DAkkS D-PL-11120-04-00 Köln, DE
DIN EN 12897 DIN EN 15332 DIN SPEC 1101 DIN EN 303-5 DIN EN 13126-19 + 3 more
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DAkkS D-PL-11052-01-03 Köln, DE
IEC 60068-2-1 IEC 60068-2-2 IEC 60068-2-6 IEC 60068-2-14 DIN EN 60068-2-14 + 3 more
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DAkkS D-PL-11052-03-01 Halle/Saale, DE
DIN EN 50178: 1998 DIN EN ISO 179-1 ISO 21527-1 ISO 21527-2 DIN EN ISO 527-3 + 3 more
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DAkkS D-K-11165-01-02 Köln, DE
motoren Gaskonzentration Kohlenstoffmonoxid CO Kohlenstoffdioxid Kohlenstoffdioxid CO2 + 3 more
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DAkkS D-PL-11165-04-03 Berlin, DE
IEC 60068-2-1 IEC 60068-2-2 IEC 60068-2-14 DIN EN 60068-2-14 IEC 60068-2-30 + 3 more
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DAkkS D-PL-14169-03-03 Nürnberg, DE
DIN EN 71-10 DIN EN 62321-2*VDE 0042-1-2 DIN EN 1264-5 DIN EN 13647 DIN EN 16889 + 3 more
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DAkkS D-K-11254-02-02 Filderstadt, DE
Railway wheelset design forces (UIC 519) Rollenbremsprüfstände Kraft Prüfsystem Prüfgeräte (SEP) + 3 more
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DAkkS D-PL-14153-02-01 München, DE
DIN EN ISO 4136 DIN EN ISO 5178 DIN EN ISO 6892-2 DIN EN ISO 14273 DIN EN ISO 5173 + 3 more
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DAkkS D-K-14153-01-00 München, DE
Vickers hardness test (ISO 6507) −1 bar Negativer und Positiver Überdruck p e > −0,01 bar + 3 more
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DAkkS D-PL-14153-04-00 München, DE
DIN 18032-7 DIN EN 1328 DIN EN 61378-2 DIN EN ISO 16810 DIN EN 1048 + 3 more
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DAkkS D-PL-11321-09-01 Garching, DE
IEC 60335-1: 2010 VDE 0700-1 DIN EN 60335-2-2 VDE 0700-2 IEC 60335-2-2 + 3 more
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DAkkS D-PL-11321-10-00 Hamburg, DE
DIN EN IEC 61851 DIN EN ISO 6185-3 DIN EN 61854 DIN EN 16083 DIN EN 16051-1 + 3 more
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DAkkS D-PL-11321-12-01 Hannover, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 12184 ISO 7176-1 ISO 7176-10 + 3 more
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DAkkS D-PL-11321-14-01 München, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-2-21 IEC 60601-2-21 IEC 60601-2-22 + 3 more
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DAkkS D-PL-11190-01-01 Halle, DE
ISO 2631-4 DIN EN 15839 DIN EN 15746-1 DIN EN 15746-2 DIN EN 15746-3 + 3 more
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DAkkS D-K-11190-02-01 Berlin, DE
Railway brake — magnetic track brakes (U Federkraft auch Vor-Ort Kalibrierung Kraft Druckkraft + 3 more
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DAkkS D-PL-11190-08-01 München, DE
IEC 61508-1 EN 61508-1: IEC 61508-2 IEC 61508-3 DIN EN 61508-3 + 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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