Scope
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 801–825 of 1,323 labs
Metrolution
Active
Metrosoft CM, Software einer Raumdiagona
AG, Chur, CH ≤ 3333 mm
Oberkochen, D
GmbH, Wetzlar, D
AG, Chur, CH ≤ 7500 mm
Mettler-Toledo
Active
Flüssigkeitsvolumen *
Kolbenhubpipetten
Manuell betätigte
spritzen
Mehrfachdispenser
+ 3 more
MeßTechnikNord
Active
- Gleichspannung
Messverstärker > 120 mV
> 1 V
> 12 V
> 1000 V
+ 3 more
Microtech Services (Wessex)
Active
ISO 7251
# = 100 A
ISO 6888-3
1) A:2b based on ISO 4833-2:2013 Amd 1:2
2) A:6c based on ISO 21528-1:2017 by mos
+ 1 more
Mimete Srl Unipersonale
Active
ASTM B212-21
ASTM E1019-24
ASTM B527-24
BS EN ISO 3923-1
ASTM B417-22
+ 3 more
Minebea Intec Bovenden
Active
Konventioneller
Wägewert/
Massenormale
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
+ 3 more
Bacillus cereus Toxin
Clostridium perfringens
Salmonella spp.
Shigella spp.
Staphylococcus aureus Toxin
+ 3 more
ETSI EN 319 412
ETSI EN 319 401
ETSI EN 319 411-2
ETSI EN 319 411-1
Railway brake — magnetic track brakes (U
auch Vor-Ort Kalibrierung
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
Radiated emissions (CISPR 32)
Mitutoyo Deutschland
Active
Parallelendmaße 0,5 mm
DIN EN ISO 3650:1999
Parallelendmaße
> 10 mm
Parallelendmaße > 100 mm
+ 3 more
Mobiler Kalibrierdienst Fini
Active
Gleichspannung 3 mV
Messgeräte 10 mV
> 100 mV
> 220 mV
> 11 V
+ 3 more
Temperatur 50 °C
Railway brake handbooks (UIC 547)
1) In den CMC sind die erweiterten Messu
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-3: 2006
VDE 0847-4-3
IEC 61000-4-4: 2012
+ 3 more
Mühlenkreiskliniken AöR Institut für Laboratoriumsmedizin, Transfusionsmedizin und Mikrobiologie
Suspended
Differentialblutbild
Kleines Blutbild (maschinell)
Thrombozyten
Unreife Thrombozyten (IPF)
Urinsediment (maschinell)
+ 3 more
München Klinik gGmbH Medizet - Institut für Laboratoriumsmedizin und medizinische Mikrobiologie
Active
Hämoglobin A1c
Hämoglobin-Differenzierung
Erythrozyten
Basophile Granolozyten
Eosinophile Granulozyten
+ 3 more
NATEC Sensors
Active
Railway brakes — conditions for homologa
− Durchfluss von Flüssigkeiten
Gleichspannung U
(Simulation des Signals
generators)
+ 3 more
2 · 10–6 mol/mol C 100 · 10–6 mol/mo
0,1 · 10–2 mol/mol < C 2,5 · 10–2 mol/
1 · 10–6 mol/mol C 100 · 10–6 mol/mo
5 · 10–6 mol/mol C 20 · 10–6 mol/mol
0,15 · 10–2 mol/mol C 20 · 10–2 mol/
+ 3 more
NMi TESTLAB
Active
IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
IEC 61000-4-6: 2013
+ 3 more
NORMEC QS
Active
NEN-EN 13361
ISO 13362
NEN-EN 13491
DIN EN 13493
NEN-EN 13492
+ 3 more
NSF Wales Limited
Active
BS EN ISO 7686:2005
DIN EN 997
DIN EN 13079
DIN ISO 10381-7
DIN EN 14622
+ 3 more
Narda Safety Test Solutions
Active
Elektrische Feldstärke /
2 V/m
2,5 V/m
1 V/m
Magnetische Feldstärke /
+ 3 more
No matching labs found.