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 1,176–1,200 of 1,560 labs

Scope iT

Active
UKAS 9086 Manchester, GB
Appendix 5 of HSG 227 (2004)) (HSG 264, 2012)
View Profile

Scopus Asbestos Compliance

Active
UKAS 10483 Ossett, GB
(HSG 248) – 2021 SAC-SOP-15 based on HSG 248 SAC-SOP-07 based on HSG 248 staining based on HSG 248
View Profile

Security Lab di Poste Italiane S.p.A

Active
ACCREDIA 01827 Roma, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
View Profile

SembCorp Utilities (UK)

Active
UKAS 2210 Wilton International, GB
(HSG 248) – 2021 DI/AN/ME/025 based on HSG 248 DI/AN/ME/001 based on HSG 248 DI/AN/ME/026 based on HSG 248 (PCM) based on HSG 248
View Profile

Senseca Germany

Active
DAkkS D-K-21043-01-00 Regenstauf, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Temperaturmessgrößen - Direktanzeigende Thermometer direktanzeigende > 200 °C + 3 more
View Profile

Sensors Europe

Active
DAkkS D-K-22209-02-01 Erkrath, DE
− Abgasmessgeräte für Kompressionszündun Railway brake — magnetic track brakes (U Railway brakes — electropneumatic brakes Abgasmessgeräte für zündungsmotoren 5000 cm + 1 more
View Profile

ServiceCal

Active
UKAS 0152 Heywood, GB
PRESSURE (cont’d) DC CURRENT DC VOLTAGE CFH-Gen, Macula-Degeneration Measurement + 3 more
View Profile

Sheffield Calibration Services

Active
UKAS 9157 Sheffield, GB
LENGTH Plain plug gauges (parallel) Internal Caliper LENGTH (cont’d) + 3 more
View Profile

Shell Global Solutions (Deutschland) GmbH Fuels Laboratory

Active
DAkkS D-PL-11327-03-00 Hamburg, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 DIN EN 13016-1 DIN EN 13016-2 + 3 more
View Profile

Shirley Technologies

Active
UKAS 1066 Leeds, GB
ASTM E 2149-20 BS EN ISO 20743:2021 Section ISO 14119 BS EN ISO 20645:2004 BS 1425-1:1991 Appendix A + 3 more
View Profile

Siebert und Knipschild GmbH Ingenieurbüro für Kunststofftechnik

Active
DAkkS D-PL-11222-01-01 Oststeinbek, DE
ISO 37 ISO 8513 DIN EN 1393 ISO 21527-2 DIN EN ISO 527-4 + 3 more
View Profile

Siemens Aktiengesellschaft DI CS SD CSS ITM CA

Active
DAkkS D-K-11055-06-02 Fürth, DE
Thermodynamische Messgrößen Temperaturmessgrößen - Direktanzeigende Thermometer Railway brake handbooks (UIC 547) - Thermopaare, Thermoelemente + 3 more
View Profile

Siemens Healthineers AG Corporate Testing Laboratory

Active
DAkkS D-PL-22642-01-01 Erlangen, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-1-3 IEC 60601-1-3 DIN EN 60601-2-54 + 3 more
View Profile

Siemens Mobility GmbH Prüf- und Validationcenter

Active
DAkkS D-PL-21237-02-00 Wegberg, DE
DIN EN 15625 IEC 61133 DIN 27202-10 DIN EN 15746-1 DIN EN 60068-2-64 + 2 more
View Profile

Sigma-HSE (UK)

Active
UKAS 9248 Winall, GB
DIN EN 13821 Sigma-HSE (UK) Ltd DIN EN 14034-1 BS EN ISO/IEC 80079-20-2:2016 DIN EN 14034-2 + 3 more
View Profile

SincoTec Test Systems GmbH Kalibrierlabor

Active
DAkkS D-K-21044-02-01 Clausthal-Zellerfeld, DE
Sound power — engineering method using a Kalibrierung von 250 N Kraftmessgeräten Kraftaufnehmer und 0,25 kN + 3 more
View Profile

Somerset Council

Active
UKAS 0369 Wellington, GB
(HSG 248) – 2021 R24 based on HSG 248 staining based on HSG 248
View Profile

Southern Calibration Laboratories

Active
UKAS 0080 Hedge End, GB
ELECTRICAL CALIBRATION DC RESISTANCE (continued) DC Resistance AC VOLTAGE (continued) AC CURRENT + 3 more
View Profile

Southern Microbiological Services

Active
UKAS 1922 Near Wellington, GB
based on BS EN ISO 6579-1: ISO 21528-2 ISO 21149:2017+Amd1:2022 DIN EN ISO 18415 method based on BS ISO 16649-2: + 3 more
View Profile

Sozialstiftung Bamberg Institut für Labordiagnostik, Mikrobiologie und Transfusionsmedizin

Active
DAkkS D-ML-13177-02-00 Bamberg, DE
Verschlußzeit Kollagen/ADP Kollagen/Epinephrin Basophile Granulozyten Eosinophile Granulozyten Erythrozyten + 3 more
View Profile

Sozialstiftung Bamberg Institut für Labordiagnostik Mikrobiologie und Transfusionsmedizin

Active
DAkkS D-ML-13180-01-00 Bamberg, DE
Verschlußzeit Kollagen/ADP Kollagen/Epinephrin Basophile Granulozyten Eosinophile Granulozyten Erythrozyten + 3 more
View Profile

Special Testing

Active
UKAS 0046 Sheffield, GB
ASTM A 370 ASTM E 384 ASTM E 92 ASTM E 23 ISO 6506-1 + 3 more
View Profile

Speciality Steel UK

Active
UKAS 4337 Sheffield, GB
ISO 3651-2 ASTM E 384-22 ASTM E10-23 ISO 6506-1 ASTM A262-15(2021) Practice E + 3 more
View Profile

Spectra Analysis Services

Active
UKAS 2621 Basildon, GB
QOP01 based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248 (HSG 264, 2012) Appendix 5 of HSG 227 (2004))
View Profile

Spera Consulting

Active
UKAS 10772 Birmingham, GB
(HSG 264, 2012)
View Profile

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

Other Test Methods

0 labs selected
Compare