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 1,051–1,075 of 1,560 labs

Pennington Choices

Active
UKAS 0179 Bromley, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) Executive guides HSG 264 (2012)
View Profile

Perry Analytical

Active
UKAS 0598 Fareham, GB
(HSG 248) – 2021 (PCM) based on HSG 248 Manual based on HSG 248
View Profile

Perschmann Calibration

Active
DAkkS D-K-15089-01-01 Braunschweig, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 > 100 mm Sonderquerschnitt (rund Parallelendmaße * > 100 mm + 3 more
View Profile

Pharmaserv GmbH Kalibrierlabor

Active
DAkkS D-K-18321-01-00 Marburg, DE
Temperaturmessgrößen Widerstandsnormal thermometer (IPRT) Zeiss Industrielle Temperaturmessgrößen −35 °C + 3 more
View Profile

Polytest Ingenieure

Active
DAkkS D-PL-21123-01-02 Fürth, DE
DIN EN ISO 9934-1 DIN ISO 815-1 DIN ISO 815-2 DIN ISO 4593 DIN EN 50178: 1998 + 3 more
View Profile

Poulten Selfe and Lee

Active
UKAS 0247 Burnham-on-Crouch, GB
TEMPERATURE Viscosity constant ‘C’ Reference viscometers: ASTM D4052 (Digital density
View Profile

Power Diagnostix Systems

Active
DAkkS D-K-15068-01-00 Aachen, DE
Impulsladung Anstiegszeit Impulsdauer Wechselspannung 1 V > 1,1 kV + 3 more
View Profile

Powys County Council

Active
UKAS 1509 Llandrindod Wells, GB
(HSG 248) – 2021 (PCM) based on HSG 248
View Profile

Praxis für Labormedizin, med. Thomas Müller

Active
DAkkS D-ML-13079-01-00 Aschaffenburg, DE
Differentialblutbild Erythrozyten Hämatokrit Leukozyten Retikulozyten + 3 more
View Profile

Precision Technologies International

Active
UKAS 0325 Tamworth, GB
External (Tip) Diameter Helix (lead) total deviation (F GEARS SPUR/HELICAL EXTERNAL (cont’d) As for Involute Spline Gauges
View Profile

Privatärztliche Gemeinschaft für Diagnostik Köln-Bonn

Active
DAkkS D-ML-19686-01-00 Köln, DE
HbA1c Automatisches Blutbild Leukozyten Normoblasten Retikulozyten + 3 more
View Profile

Privatärztliche Laborgemeinschaft Köln

Active
DAkkS D-ML-22827-01-01 Köln, DE
Calcium Bilirubin gesamt Creatinkinase-Muscle-Brain TPZ nach Quick Immunglobulin A + 3 more
View Profile

ProfEC Ventus

Active
DAkkS D-PL-19142-01-00 Oldenburg, DE
IEC 61400-12 Ed.1 * IEC 61400-12-1 Ed.3 * IEC 61400-12-3 Ed.1 * IEC 61400-12-4 Ed.1 * IEC 61400-12-5 Ed.1 * + 3 more
View Profile

Prüfstelle für Betonstahl - Gallus Rehm

Active
DAkkS D-PL-18743-01-01 München, DE
ISO 15835-2 UNE-EN 10002-1 BS EN ISO 15630-1:2019 UNE-EN 10080 BS EN ISO 15630-3:2019 + 3 more
View Profile

Public Health Wales – North Wales Microbiology Service F,W&E

Active
UKAS 1817 Bangor, GB
ISO 6579-1 ISO 15213-2 ISO 11290-1 ISO 7932 F100 based on BS EN ISO + 3 more
View Profile

Pulenergy Metrovis srl

Active
ACCREDIA 01237 Cammarata, IT
UNI 10772
View Profile

Pullman Instruments (UK)

Active
UKAS 0683 Harrogate, GB
DC CURRENT Measurement DC VOLTAGE AC Current Generation DC RESISTANCE (cont’d) + 3 more
View Profile

QS-Grimm

Active
DAkkS D-K-15159-01-01 Gutach Schwarzwaldbahn, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 Zylindrische Normale 1 mm Innenzylinder * > 100 mm + 3 more
View Profile

QUALILAB

Active
ACCREDIA 00888 Capriano del Colle, IT
EN 12966: 2014 Section 4.5.4 DIN EN 55025: 2018 DIN EN 60068-2-30 (CISPR 25:2002) Section 6 ISO 11452-4: 2020 + 3 more
View Profile

QUALYSE CHAMPDENIERS ST DENIS

Active
COFRAC 1-7303 Champdeniers, FR
ISO 13320 VDE 414-9-11 NF V08-250 ISO 19343 DIN EN ISO 7899-1 + 3 more
View Profile

QUANTUM INNOVATIVE, S.L. (CIMALab)

Active
ENAC LE2055 Nigrán, ES
UNE-EN 1789
View Profile

Qopas

Active
DAkkS D-K-12048-01-00 Driedorf, DE
Koordinatenmessgeräte geräte mit einem Chorus, Help-PJM von DEA Hexagon Metrology S.p.A., Turin, I Associates EMS Products, ≤ 1500 mm + 3 more
View Profile

Quality Consultants (NI)

Active
UKAS 2705 Dundonald, GB
(HSG 248) – 2021 (PCM) based on HSG 248 QSOP 03 based on HSG 248
View Profile

Questmed

Active
DAkkS D-PL-18753-02-00 Kleinmachnow, DE
ISO 22679 ISO 7207-1 ISO 14243-1 ISO 14243-2 ISO 14243-3 + 3 more
View Profile

R-TECH Services

Active
UKAS 2594 Margam, GB
ÖNORM EN ISO 17637 BS EN ISO 15614-1:2017 ASTM A 370 DIN EN 10080 BS EN ISO 9015-1:2011 + 3 more
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