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
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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 976–1,000 of 1,560 labs
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
Ministry of Defence
Active
Specific Values
Specific values (continued)
ELECTRICAL
Other Values
AC CURRENT
+ 3 more
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
Moorcroft Controls
Active
DC CURRENT
Gas pressure (gauge)
ELECTRICAL
DC VOLTAGE
Measurement
+ 3 more
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
Active
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
NANO LABO
Active
NF X43-050 (parties utiles de
NF X 46-032
DIN EN ISO 11885
NF X43-050 (parties utiles de la
NF ISO 22262-1 (parties utiles
+ 1 more
NATEC Sensors
Active
Railway brakes — conditions for homologa
− Durchfluss von Flüssigkeiten
Gleichspannung U
(Simulation des Signals
generators)
+ 3 more
NEMKO
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
Nature’s Consultancy
Active
(HSG 248) – 2021
(PCM) based on HSG 248
DOC/002 based on HSG 248)
Navobi
Active
AM09 based on BS ISO 21527-1:
07L.1.11 based on ISO 5984:2002
DIN EN ISO 11290-2
ISO 4833-1
DIN EN ISO 8968-1
+ 3 more
No matching labs found.