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 26–50 of 166 labs

COFRAC 1-6232 Nantes, FR
NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de NF X 43-050 ISO 16000-7
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COFRAC 1-0973 Sevres, FR
NF X 43-269 NF X 43-050 ISO 22262-1 NF X 43-269 - Annexe K NF X 43-298 + 3 more
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COFRAC 1-7426 Sautron, FR
DIN EN ISO 10523 NF X 31-615 (prélèvements purge
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COFRAC 1-7368 Courbevoie, FR
NF X43-551 DIN 16961-2 DIN EN 14790 AG2 and IS EN 15259:2007 DIN EN 14181 + 3 more
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COFRAC 1-5812 Moulins, FR
DIN ISO 17289 DIN EN ISO 10523 DIN EN 27888 NF X 31-615 (Uniquement
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COFRAC 1-0793 Perpignan, FR
DIN EN ISO 17294-2 DIN EN ISO 14403-2 DIN EN ISO 13395 VDE 414-9-11 DIN EN ISO 10304-1 + 3 more
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COFRAC 1-0736 St Paul Lez Durance Cedex, FR
ASTM E181 – 17 ASTM E 1297
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COFRAC 1-7313 Fretin, FR
NF X 43-269 NF X 43-050 NF X43-050 (2021)* (parties
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COFRAC 1-1695 Cestas, FR
DIN EN 13486 IEC ISO 1496-2 – Conteneurs DIN EN 16440-1
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COFRAC 1-0301 Marne La Vallee Cedex 2, FR
NF P 92-501 NF P92-512 EN 13823 EN ISO 1716 NF P 92-504 + 3 more
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COFRAC 1-0979 Bobigny, FR
NF X 31-615 (Uniquement NF X 43-257 NF X 43-259 DIN EN 27888 DIN EN ISO 10523 + 3 more
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COFRAC 1-1209 Garons, FR
DIN EN 1988-1 DIN EN ISO 17294-2 NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 + 3 more
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COFRAC 1-5710 Saint-Quentin, FR
NF EN 12802 (inventaire ISO 2811-1 NF T 30-012 DIN EN 15182-4 DIN 51436 + 3 more
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COFRAC 1-5697 Aix-En-Provence, FR
DIN EN 12593 DIN EN 1097-4 DIN EN 933-1 DIN EN 12607-1 DIN EN 1427 + 3 more
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COFRAC 1-5706 Toulouse, FR
DIN EN 12390-6 DIN EN 62196-1: 2015 DIN EN 12390-3 NF P 98-532 NF P 98-533 + 3 more
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COFRAC 1-7246 Cherbourg-En-Cotentin, FR
NF EN ISO 6892-1 (méthode DIN EN ISO 9016 DIN EN ISO 5178 ISO 11148-1
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CETEP

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COFRAC 1-2262 Mainvilliers, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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COFRAC 1-2263 Arnage, FR
NF X 43-269 NF X 43-269 - Annexe K NF X 43-298 NF X 43-259 ISO 22262-1 + 3 more
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COFRAC 1-0064 Saint-Marcel, FR
DIN EN 1254-2 DIN EN 1254-3 DIN EN 1254-5 DIN EN 12101-10 BS EN 50291-1:2018 + 3 more
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COFRAC 1-0097 Charleville-Mezieres, FR
DIN EN ISO 6508-1 ASTM E8/E 8M DIN EN ISO 643 EN ISO 12624 ISO 4967 + 3 more
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CSTB - BV

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COFRAC 1-0300 Marne La Vallee Cedex 2, FR
DIN EN 947 DIN CEN TS 15119-2 NF P 20-501 DIN EN 1026 BS EN 14351-1:2006+A2:2016 + 3 more
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COFRAC 1-1542 Saint Martin D'Heres, FR
DIN EN 1279-2 DIN EN 1279-5 DIN EN 12094-10 EN 1279-6 – Méthode de référence DIN EN 14449 + 3 more
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COFRAC 1-6191 Grande Synthe, FR
NF EN ISO 6892-1 (méthode DIN EN 10164 ASTM E 8 ASTM A 370 DIN EN ISO 6508-1 + 3 more
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COFRAC 1-10039 Marseille, FR
NF X 43-050 NF X43-050 (parties ISO 22262-2 NF ISO 22262-1 et/ou ISO 22262-1
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COFRAC 1-10029 Colomiers, FR
NF X 43-050 NF X43-050 (parties
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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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