Scope
UIC 544-2
Railway Braking Force Estimation Methods
UIC 544-2 provides standardized calculation and estimation methods for determining braking force in railway rolling stock across different brake system types and operational scenarios. This technical standard defines mathematical models for translating brake system pressure, line force, and mechanical leverage into actual stopping power, accounting for variables such as wheel slip, temperature effects, and load conditions. The standard enables consistent performance prediction and certification across diverse European rail systems. Accreditation for this calculation methodology ensures reproducible, safety-critical engineering assessments used in rail fleet design and operational planning.
What it measures
- Brake force calculation from system pressure and geometry
- Adhesion coefficient effects on available braking force
- Load-dependent braking force variations
- Dynamic brake force response characteristics
- Braking force distribution optimization
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DIN EN 14531-1
🇬🇧
BS EN 14531-1
🇫🇷
NF EN 14531-1
🇮🇹
UNI EN 14531-1
🇪🇸
UNE EN 14531-1
🇳🇱
NEN EN 14531-1
1,560
Accredited labs
17
Countries
Showing 651–675 of 1,560 labs
DC Resistance
AC VOLTAGE (continued)
AC POWER
AC CURRENT
Generation (continued)
+ 3 more
Intertek Caleb Brett GERMANY
Active
DIN EN ISO 12185
ASTM D 4052
DIN EN ISO 3405
ASTM D 86
DIN EN 13016-1
+ 3 more
Intertek Consumer Goods
Active
IEC 62321-2
DIN EN 61340-4-4
DIN EN 12472
DIN EN 16711-1
DIN EN 1264-5
+ 3 more
Intertek Deutschland
Active
IEC 61000-3-2: 2014
IEC 61000-3-3
IEC 61000-3-11: 2017
IEC 61000-3-12: 2011
IEC 61000-4-2: 2008
+ 3 more
Intertek Polychemlab
Active
DIN EN ISO 10675-1
DIN EN ISO 19458
DIN EN ISO 179-1
NEN 6953
DIN EN ISO 10675-2
+ 3 more
Intona
Active
and Appx. 3 of HSG 227 (2004))
Executive guides HSG 264 (2012)
(HSG 264, 2012)
Isabellenhütte Heusler
Active
Gleichspannung 1
Gleichstrom- und Nieder- 10 mV
> 10 V
Gleichstromstärke 1
> 1mA
+ 3 more
Isserstedt Prüfmaschinen
Active
Härte* 20 HRA
Härtevergleichsplatten
20 HRB
20 HRC
40 HRD
+ 3 more
Istituto Giordano SpA
Active
EN 14304:2009+A1:2013
EN 14305:2009+A1:2013
DIN EN ISO 12623
DIN EN 1873
DIN EN 14963
+ 3 more
J B-Monitor
Active
(HSG 248) – 2021
No 1 based on HSG 248 – 2021
(PCM) based on HSG 248 – 2021
No 3 based on HSG 248 – 2021
(PCM) based on HSG 248
+ 1 more
JCS Technology
Active
ISO 178
BS 5350:Part C13
BS 2782 Part 10 Method 1005
BS EN ISO 14125
MIL-STD 810G:2008 Method 501.5
+ 3 more
UNE 320001
ISO/IEC 18045
ISO/IEC 15408
CEM ISO
ISO/IEC 24759
+ 2 more
Temperaturmessgrößen
(Härteskalen HV0,01
Widerstandssensor *
direktanzeigende > 200 °C
Messumformer mit
+ 3 more
Jackson and Keay
Active
BS EN ISO 11623:2015
BS EN ISO 18119:2018+A1:2021
BS EN ISO 10460:2018
BS EN 20745:2020
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
elektronische Waagen
Innen- und Tiefenmaße
Konventioneller
+ 2 more
Javer Labs
Active
MIL-STD-810G, Method 508:7
BS 2011:2.1 Ca:1977
(IEC 60068-2-10:2005+A1:2018,
MIL-STD-810H, Method 508:8
Ebenheitsabweichung
verkörperungen z.B.
platten nach DIN 876:1984
Geradheitsabweichung
ebener Flächen, z.B.
+ 3 more
Johnson and Allen
Active
DC CURRENT
INSPECTION EQUIPMENT
AC CURRENT 50 Hz RMS
uncertainties may be increased.
Johs. Boss
Active
(ein- und mehrgängige
winde mit geradlinigen
unsymmetrischem Profil
0,5 mm bis 6 mm)
Außengewinde Nenndurchmesser
+ 3 more
MIL-PRF-46103E
DIN EN ISO 15106-3
DIN EN ISO 1522
DIN EN ISO 1523
ISO 16935:2007
+ 3 more
Obligat anaerobe Bakterien
mikroaerophile Bakterien
ESBL-Bildner
(multiresistente gramnegative
säurefeste Stäbchen
+ 3 more
CD45 Percp+CD16+56+CD3
CD4
CD45 Percp+CD4+CD8
Adalimumab
Anti-Adalimumab Antikörper
+ 3 more
K B Calibration Services
Active
LENGTH
ended (excluding length bars)
Chronic progressive external
Dial gauges and dial test
Caliper Gauges
+ 1 more
K. A. Schmersal
Active
DIN EN IEC 60947-5
IEC 60947-5-1
IEC 60947-5-2
DIN EN 60947-5
IEC 60947-5-3
+ 3 more
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