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
🇩🇪 DIN EN 14531-1 🇬🇧 BS EN 14531-1 🇫🇷 NF EN 14531-1 🇮🇹 UNI EN 14531-1 🇪🇸 UNE EN 14531-1 🇳🇱 NEN EN 14531-1
1,323 Accredited labs
15 Countries

Showing 76–100 of 298 labs

UKAS 4301 Llanishen, GB
Electrolytes in blood serum: Enzymes in blood serum: (Chlamydia pneumoniae, Mycoplasma urine: Hormones in blood serum: + 1 more
View Profile
UKAS 27202 Paisley, GB
(HSG 264, 2012)
View Profile
UKAS 7914 Willsbridge, GB
5 of HSG 227 (2004)) (HSG 264, 2012)
View Profile
UKAS 1643 Chelmsford, GB
(cdt), Deletion an Pos 117 (HSG 248) – 2021 (PCM) based on HSG 248 BS 6068-4.12:1998 (withdrawn)
View Profile
UKAS 0822 Southam, GB
Calibration of pressure Gas pressure (gauge) Gas Pressure (Differential) common mode pressure of 3.5 Hydraulic pressure (gauge) + 3 more
View Profile
UKAS 6536 Leicester, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
View Profile
UKAS 9102 Bellshill, GB
(HSG 248) – 2021 SRV-002 based on HSG 248 (PCM) based on HSG 248
View Profile
UKAS 0318 Derby, GB
Chronic progressive external Depth Internal Dial gauges and dial test Caliper + 3 more
View Profile
UKAS 0595 1 South Gyle Crescent, GB
simulation. parameters and ranges) digital and analogue
View Profile

Compli Group

Active
UKAS 4332 Poole, GB
DC CURRENT DC Resistance Oscilloscope Calibration DC VOLTAGE CAPACITANCE + 3 more
View Profile
UKAS 4161 Leicester Forest East, GB
DIN EN 933-11 DIN EN 12390-3 DIN EN 933-3 DIN EN 12390-7 DIN EN 12697-5 + 3 more
View Profile
UKAS 0783 Duckmanton, GB
DC CURRENT LENGTH DC Resistance DC VOLTAGE Cold junction compensation + 3 more
View Profile

Core Surveys

Active
UKAS 6830 Fletching Common, GB
(HSG 248) – 2021 (PCM) based on HSG 248 (HSG 264, 2012)
View Profile
UKAS 0756 Redruth, GB
DIN EN 933-1 (PCM) based on HSG 248 (HSG 248) – 2021 DIN EN 932-1 DIN EN 932-2 + 3 more
View Profile
UKAS 9418 Worthing, GB
(HSG 264, 2012)
View Profile
UKAS 31255 Swinton, GB
(HSG 264, 2012)
View Profile
UKAS 6856 Basildon, GB
(HSG 248) – 2021 (HSG 264, 2012)
View Profile
UKAS 0138 Irlam, GB
Gas pressure (absolute) Gas pressure (gauge) Hydraulic pressure (gauge) Hydraulic Pressure (absolute) PRESSURE (cont’d) + 1 more
View Profile

DNKA

Active
UKAS 9730 Govan, GB
staining based on HSG 248. (PCM) based on HSG 248 (HSG 248) – 2021 QSOP 03 based on HSG 248 QSOP 01 based on HSG 248
View Profile
UKAS 4303 Ammanford, GB
1) MS08P based on BS EN ISO MS02P based on BS EN ISO MS03P based on BS EN ISO MS06P based on BS EN ISO MF07P based on BS EN ISO + 3 more
View Profile
UKAS 0254 Plymouth, GB
Specific Values 1  RF Power RF Attenuation 10 MHz to 1 GHz Other values -20 dBm to +20 dBm
View Profile
UKAS 0687 Devonport, GB
BS 4206:1967 (superseded) ISO 5173 ISO 7438 BS EN ISO 9606-2:2004 BS 131-5:1965 + 3 more
View Profile
UKAS 0560 Bingley, GB
TIME INTERVAL TEMPERATURE parameters and ranges)
View Profile

E C L (2000)

Active
UKAS 0709 Forest Hall, GB
(PCM) based on HSG 248) (HSG 248) – 2021
View Profile
UKAS 9982 Waterside Court, GB
and Appx. 3 of HSG 227 (2004)) in Appendix 5 of HSG 227 (2004) guides HSG 264 (2012) and (HSG 264, 2012)
View Profile

No matching labs found.

Industries

Railway rolling stock engineering and design Brake system manufacturers and integrators Railway fleet operators Rail vehicle certification authorities Transport safety and compliance consulting

Related Standards

  • UIC 544-1 Railway brakes — Braking performance
  • UIC 541-01 Railway brakes — Brake pads — Part 1: Friction material specification
  • EN 14531-1 Railway applications — Safety requirements for the design of rolling stock

Other Test Methods

0 labs selected
Compare