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 226–250 of 1,323 labs

Clearview Environmental

Active
UKAS 6536 Leicester, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
View Profile

Clyde Environmental Consultants

Active
UKAS 9102 Bellshill, GB
(HSG 248) – 2021 SRV-002 based on HSG 248 (PCM) based on HSG 248
View Profile

CoMech Metrology

Active
UKAS 0318 Derby, GB
Chronic progressive external Depth Internal Dial gauges and dial test Caliper + 3 more
View Profile

Coesfeld

Active
DAkkS D-K-15093-01-00 Dortmund, DE
Kraft (WPM) Belastungseinrichtungen von Werkstoffprüfmaschinen Länge (WPM) 0,5 mm messeinrichtungen von + 3 more
View Profile

Common Services Agency – NHS National Services Scotland

Active
UKAS 0595 1 South Gyle Crescent, GB
simulation. parameters and ranges) digital and analogue
View Profile

Compli Group

Active
UKAS 4332 Poole, GB
DC CURRENT DC Resistance Oscilloscope Calibration DC VOLTAGE CAPACITANCE + 3 more
View Profile

ConCert Servicezentrum Bayerischer Untermain

Active
DAkkS D-K-17132-01-00 Elsenfeld, DE
Messgeräte 0,001 V > 0,22 V > 2,2 V > 11 V > 22 V + 3 more
View Profile

Conatex Ludwig Colbus

Active
DAkkS D-K-15160-01-00 St. Wendel, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Taupunkttemperatur Temperatur −40 °C Railway braking — urban guided transport + 3 more
View Profile

Construction Testing Solutions

Active
UKAS 4161 Leicester Forest East, GB
DIN EN 933-11 DIN EN 12390-3 DIN EN 933-3 DIN EN 12390-7 DIN EN 12697-5 + 3 more
View Profile

Construction Testing Solutions

Active
UKAS 0783 Duckmanton, GB
DC CURRENT LENGTH DC Resistance DC VOLTAGE Cold junction compensation + 3 more
View Profile

Control Union Certifications

Active
RvA I192 Zwolle, NL
DIN 10172-3 (CD45/CD19/CD5/CD20/CD23/CD20
View Profile

Cooper Health Clinic Laboratory

Active
DAkkS D-ML-21351-01-00 Dubai, AE
Chloride Potassium Sodium Differential Blood Count White Blood Cell Count + 3 more
View Profile

Core Surveys

Active
UKAS 6830 Fletching Common, GB
(HSG 248) – 2021 (PCM) based on HSG 248 (HSG 264, 2012)
View Profile

Coretec - Service

Active
DAkkS D-K-21661-01-00 Linden, DE
Absolutdruck Positiver und negativer -3,92 kPa 4,02 kPa Railway brakes — brake performance (UIC Lungensimulator
View Profile

Corserv Solutions

Active
UKAS 0756 Redruth, GB
DIN EN 933-1 (PCM) based on HSG 248 (HSG 248) – 2021 DIN EN 932-1 DIN EN 932-2 + 3 more
View Profile

Crucial Environmental

Active
UKAS 9418 Worthing, GB
(HSG 264, 2012)
View Profile

Crusader Risk Management

Active
UKAS 31255 Swinton, GB
(HSG 264, 2012)
View Profile

CryptoNet Labs Srl

Active
ACCREDIA 01702 Milano, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
View Profile

Cube Environmental

Active
UKAS 6856 Basildon, GB
(HSG 248) – 2021 (HSG 264, 2012)
View Profile

Cybertech

Active
ACCREDIA 01852 Roma, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
View Profile

DB Systemtechnik GmbH Messprozesse, Kalibrier- und Prüfstelle

Active
DAkkS D-K-11081-02-01 Chemnitz, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 auch Vor-Ort Kalibrierung bahntypischer –0,26 mm + 3 more
View Profile

DBI - Gastechnologisches Institut gGmbH Freiberg DVGW-Prüflaboratorium Energie

Active
DAkkS D-PL-11072-01-01 Freiberg, DE
DIN EN ISO 9012 ISO 22967 ISO 22968 (SPG42), SPAST (SPG4), SPG11, SPG7, VAMP DIN EN 30-1-1 + 3 more
View Profile

DECOM-UGK Werkzeugtechnik

Active
DAkkS D-K-17567-01-01 Lauf a. d. Pegnitz, DE
(ein- und mehrgängige zylindrische Außen- und metrischem Profil) Außengewinde Nenndurchmesser Flankendurchmesser 1 mm + 3 more
View Profile

DEKRA Automobil

Active
DAkkS D-PL-11060-03-05 Stuttgart, DE
DIN EN ISO 5667-3 DIN EN ISO 15587-2 DIN EN 12457-4 DIN EN 13346 DIN EN 13657 + 3 more
View Profile

DEKRA Certification

Active
RvA I327 Arnhem, NL
DIN EN 60076-3 DIN EN 60076-10 DIN EN 60076-1 DIN EN 60076-4 DIN EN 60076-11 + 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