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
๐Ÿ‡ฉ๐Ÿ‡ช DIN EN 14198 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN 14198 ๐Ÿ‡ซ๐Ÿ‡ท NF EN 14198 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN 14198 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN 14198 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN 14198
1,560 Accredited labs
17 Countries

Showing 51โ€“75 of 344 labs

UKAS 10792 Mansfield Woodhouse, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 6958 Witney, GB
(HSG 264, 2012) (HSG 248) โ€“ 2021
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UKAS 4234 Slough, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 (HSG 264, 2012)
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UKAS 4311 Elgin, GB
(HSG 264, 2012)
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UKAS 2544 Hebburn, GB
QOP03 based on HSG 248 QOP01 based on HSG 248 (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 30103 Nottingham, GB
(HSG 264, 2012)
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UKAS 0438 London, GB
(HSG 264, 2012)
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UKAS 30612 Cambridge Biomedical Campus, GB
DC CURRENT AC VOLTAGE (continued) AC CURRENT AC Voltage DIMENSIONAL + 3 more
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UKAS 4696 Wickford, GB
Analystsโ€™ Guide (HSG 248) (HSG 248) โ€“ 2021 Asbestos: The (PCM) based on HSG 248
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UKAS 0612 Orpington, GB
(HSG 248) โ€“ 2021 ) (PCM) based on HSG 248 Surveying) based on HSG 248
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UKAS 7511 Brentwood, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
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BDA Surveying

Active
UKAS 2791 Oadby, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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BDA Surveying

Active
UKAS 0365 Oadby, GB
(HSG 264, 2012)
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UKAS 10646 Lincoln, GB
5 of HSG 227 (2004)) (HSG 264, 2012)
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BOC

Active
UKAS 0011 Guildford, GB
DIN EN ISO 18119 BS EN ISO 10460:2018 BS EN ISO 11623:2015 BS EN 15888:2014 BS EN 14876:2007/Internal proceduresDiss + 2 more
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UKAS 0578 Garston, GB
BS EN ISO 10140-2:2021 BS EN ISO 10140-3:2021 BS EN ISO 717-2:2020 ISO 7171 BS EN ISO140-3:1995 (withdrawn) + 3 more
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UKAS 0757 Dunfermline, GB
(HSG 248) โ€“ 2021 14B based on HSG 248 DIN EN 12021 14A based on HSG 248 (PCM) based on HSG 248 + 2 more
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BeckProsper

Active
UKAS 8974 Kingswinford, GB
ASTM A370-24 ASTM E23-24 ASTM E 384-22 ASTM E8/E8M-24 ISO 6507-1 + 3 more
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UKAS 0726 Garretts Green, GB
(HSG 248) โ€“ 2021 ) (PCM) based on HSG 248) (PCM) based on HSG 248 staining based on HSG 248 (HSG 264, 2012)
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UKAS 1155 Halesowen, GB
staining based on HSG 248 (HSG 248) โ€“ 2021 (PCM) based on HSG 248 (HSG 264:2012)
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UKAS 7864 Bridgend, GB
(HSG 248) โ€“ 2021 P10.2 based on HSG 248 (PCM) based on HSG 248
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UKAS 24592 Barry, GB
TORQUE
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UKAS 9230 Warrington, GB
ร–NORM EN ISO 3452-1 BS 3923-1:1986(Withdrawn) ASTM E165-23 BS 4124:1991(Withdrawn) DIN EN 10228-3 + 3 more
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UKAS 0295 Norwich, GB
(HSG 264, 2012)
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UKAS 0103 Meltham, GB
Inch Millimetre
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No matching labs found.

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 โ€” Braking power
  • UIC 541-05 Railway brakes โ€” Anti-slide device
  • EN 14198 Railway applications โ€” Wheelsets and bogies โ€” Safety requirements for thermal management

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