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
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BS EN 14198
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NF EN 14198
🇮🇹
UNI EN 14198
🇪🇸
UNE EN 14198
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NEN EN 14198
1,560
Accredited labs
17
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Showing 51–75 of 849 labs
Biozym Scientific
Active
− Temperatur-Blockkalibratoren
Railway brake — magnetic track brakes (U
nur Vor-Ort-Kalibrierungen
Temperaturmess- 30 °C
- Hochspannungsmessgrößen
+ 2 more
Bizerba SE &
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
Black Forest Testlab
Active
DIN EN 61000-3
IEC 61000-3-2: 2014
IEC 61000-3-3
IEC 61000-3-11: 2017
IEC 61000-3-12: 2011
+ 3 more
IEC 60945
IEC 61162-1
IEC 61162-2
IEC 61162-450
IEC 61162-460
+ 3 more
Radioaktivität 50 Bq/m³
Radon-222-
100 Bq/m³
tration in Luft
200 Bq/m³
+ 3 more
DIN EN ISO 2808
DIN EN ISO 3219-2
DIN EN ISO 3838
DIN EN 933-1
DIN EN 933-4
+ 3 more
Conformity assessment — requirements for
Railway composite brake blocks — require
0,2 kN
0,4 kN
100 kN
+ 3 more
Bundesministerium der Verteidigung Bundeswehrkrankenhaus Berlin Abteilung XVI Laboratoriumsmedizin
Active
NRBC-Normoblasten
Anteil unreifer Retikulozyten
Erythrozyten
DELTA-He
Leukozyten
+ 3 more
Blutungszeit PFA ADP
Blutungszeit PFA EPI
PFA-P2Y
Erythrozyten
Hämatokrit
+ 3 more
Leukozyten
Enteroaggregative E. coli
Legionellen
Staphylokokkus aureus
Salmonellen
+ 3 more
/ Messgeräte
Radiometrie 100 µW/cm²
stärkemessgeräte
UV-A 365nm
Linearität der
+ 3 more
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
Radiated emissions (CISPR 32)
verwendete Abkürzungen:
CAL
Active
DIN 38402-A 11
DIN 38402-A 12
DIN 38402-A 13
DIN ISO 5667-5 (A 14)
DIN EN ISO 5667-6 (A 15)
+ 3 more
CARTESY
Active
Tensile testing of metallic materials (I
Vickers hardness test (ISO 6507)
Kraft
Railway vehicles — specific test require
Railway — traction effort and braking fo
+ 3 more
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
elektronische Waagen
Railway bogies — wheelsets and bogies st
Datenlogger mit
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CENTROCAL
Active
Taupunkttemperatur
Railway brake handbooks (UIC 547)
(SPRT)
–40 °C
> –20 °C
+ 3 more
DIN EN 16334
EN 50128
EN 50129
DIN EN 50215
EN 50657
+ 3 more
CETA Testsysteme
Active
Druck *
> –0,12 bar bis
negativer und positiver
Überdruck p e > –0,01 bar bis
> 0,03 bar bis
+ 3 more
CEcert
Active
IEC 61000-4-2: 2008
EN IEC 61000-4
IEC 61000-4-3: 2006
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
+ 3 more
COAGUMED Gerinnungszentrum
Active
Thrombozytenaggregationstest
Blutbild mit Vordifferenzierung
Calcium
Natriumchlorid
Kalium
+ 3 more
- Gleichspannung
Quellen > 0,10 V
> 1 V
> 10 V
- Gleichstromstärke
+ 3 more
CSA Group Bayern
Active
DIN EN 55016-2
VDE 0877-16-2-1
VDE 0877-16-2-2
VDE 0877-16-2-3
EN IEC 61000-4
+ 3 more
CTK-Poliklinik
Active
Oligosaccharide
Chromatographie (Gaschromatograpie
Cannabinoide (THC-COOH)
Amphetamine
Opiate
+ 3 more
CTS Clima Temperatur Systeme
Active
Vickers hardness test (ISO 6507)
Temperaturmessgrößen –70 °C
Railway braking — urban guided transport
Thermometer mit > –40 °C
Widerstandssensor *
+ 3 more
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