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
๐ง๐ช
NBN EN 14531-1
๐ฉ๐ช
DIN EN 14531-1
๐ฌ๐ง
BS EN 14531-1
๐ซ๐ท
NF EN 14531-1
๐ฎ๐น
UNI EN 14531-1
๐ช๐ธ
UNE EN 14531-1
๐ณ๐ฑ
NEN EN 14531-1
3,963
Accredited labs
21
Countries
Showing 501โ525 of 773 labs
Pennington Choices
Active
(HSG 264, 2012)
Executive guides HSG 264 (2012)
and Appx. 3 of HSG 227 (2004))
Perry Analytical
Active
(HSG 248) โ 2021
(PCM) based on HSG 248
Manual based on HSG 248
Plasma cells | CD138
Amyloid | Congo Red
Fungi | Grocott
Haemosiderin | Perls
Endothelial cells | CD31
+ 3 more
Quantification of: | Roche Cobas 8000 sy
Detection of : | Manual Indirect
Urine Detection of: | Abbott BinaxNOW
Faeces Detection of: | Automated enzyme
Governance Manager
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Digoxin
Cortisol
Glucose
Gentamicin
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Poulten Selfe and Lee
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TEMPERATURE
ASTM D4052 (Digital density
Viscosity constant โCโ
Reference viscometers:
Poundbury Cancer Centre
Active
Mycobacterium tuberculosis
CD117
Fungi
Human tissue samples/ | Detection of Her
Leucocytes: | 8 Colours
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External (Tip) Diameter
Helix (lead) total deviation (Fฮฒ) / Heli
GEARS SPUR/HELICAL EXTERNAL (contโd)
As for Involute Spline Gauges
Hepatitis B-e-Antigen
anti-HBc total
Mumps IgG
Mumps IgM
Adenovirus
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ISO 11290-1
ISO 6579-1
ISO 7932
ISO 15213-2
W080 based on BS EN ISO
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Pullman Instruments (UK)
Active
DC VOLTAGE
Measurement
DC CURRENT
Gas pressure (absolute)
Gas pressure (gauge)
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Quality Consultants (NI)
Active
(HSG 248) โ 2021
(PCM) based on HSG 248
QSOP 03 based on HSG 248
Blizard Institute Core Pathology
incisional biopsies and surgical identif
Histopathological examination of fixed a
incisional biopsies and surgical identif
incisional biopsies and surgical identif
+ 3 more
Iron
Amyloid
Histopathological examination activities
Special stains for the detection of: Gra
Macrophages
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Queenโs University Belfast
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Queenโs University Belfast
Tissue Dehydration Clearing and Mounting
Tissue Dehydration Clearing and Mounting
Tissue FFPE slides | PMC-SOP-43
Formalin Fixed Paraffin Embedded Immunoh
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R-TECH Services
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delA, 2615_2617 delAAG, 2850
DIN 51603-1
ISO 15835-2
DIN EN 10200
ASTM A 370
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Ramcare
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thermometer Pt100
Hydraulic pressure (gauge)
DC VOLTAGE
Measurement
Temperature indicators, simulators, reco
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Ransomes Jacobsen
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Sound power โ engineering method using a
DIN EN IEC 62841-4-3
ISO 5395-1
ISO 5395-2
ISO 5395-3
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Rhopoint Metrology
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Betriebsรผbertragungsmaร
(enzephalomyopathische Form
Hydraulic pressure (gauge)
DC VOLTAGE
AC CURRENT
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Rivencore Global Solutions
Active
DIN EN 60068-2-14
DIN EN 60068-2-30
DIN EN 60529
IEC 60945
EN IEC 62368-1
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(HSG 248) โ 2021
(PCM) based on HSG 248
OP11 based on HSG 248
OP04 based on HSG 248
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