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

🇧🇪 NBN EN 14531-1 🇩🇪 DIN EN 14531-1 🇬🇧 BS EN 14531-1 🇫🇷 NF EN 14531-1 🇮🇹 UNI EN 14531-1 🇪🇸 UNE EN 14531-1 🇳🇱 NEN EN 14531-1

3,963 Accredited labs

21 Countries

Showing 2,326–2,350 of 3,963 labs

MINISTERO DELLA DIFESA - DIREZIONE GENERALE DI COMMISSARIATO E DI SERVIZI GENERALI UFFICIO TECNICO TERRITORIALE DI NAPOLI

ACCREDIA 00540 Napoli, IT

DIN EN ISO 12759 DIN EN 1337-6 DIN EN 1337-9 DIN EN ISO 13934-1 DIN EN 13759 + 3 more

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MISURLAB SRL - Laboratorio LACHIMER MISURALAB

ACCREDIA 00127 Foggia, IT

DIN EN 14346 DIN EN ISO 17294-2 DIN EN 12457-2 BS EN ISO 17294-2 ISO 15705 + 3 more

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MIT Ambiente Srl

ACCREDIA 01236 Pesaro, IT

DIN EN 13126-19 DIN EN ISO 16911-1 DIN EN ISO 16911-2 DIN EN 13284-1 DIN EN 14790 + 3 more

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MITSUBISHI ELECTRIC EUROPE BV

COFRAC 1-7500 Nanterre, FR

DIN EN 14511-2 DIN EN 14511-3 DIN EN 14511-4 DIN EN 14825 NF EN 16147

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MJ OOMEN INSPECTIE bv

BELAC 418-TEST Vianen, NL

NBN EN 13508-2 (Codering) NBN B-34-001 BEFDSS-DP-vm (Uitwisselingsformaat) SB 250 Hoofdstuk 7 - Hoofdstuk 14 BEFDSS S -vm (uitwisselingsformaat)

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MK-Kalibrierlabor

DAkkS D-K-18366-01-01 Schweinfurt, DE

Railway maintenance — track geometry (EN - Gleichstromwiderstand Quellen / Messgeräte > 100 mV + 3 more

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MLL MVZ

DAkkS D-ML-13228-01-00 München, DE

DIN IEC ISO verwendete Abkürzungen: Retikulozyten + 3 more

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MLM MEDICAL LABS

DAkkS D-ML-13178-01-01 Mönchengladbach, DE

Creatinin HbA1c Cortisol Testosteron Glucose + 3 more

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MM

ACCREDIA 00428 Milano, IT

DIN EN 27888 DIN EN ISO 10523 DIN EN ISO 17294-2 ISO 11731 DIN EN ISO 7887 + 3 more

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MODENA CENTRO PROVE S.r.l. a Socio Unico

ACCREDIA 00773 Modena, IT

Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 4136 DIN EN ISO 9016 DIN EN ISO 6506-1 + 3 more

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MOLECULAR BIOTECHNOLOGY S.r.l. (MBT S.r.l.)

ACCREDIA 00576 Novara, IT

DIN EN 16802 DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 7932 DIN EN ISO 11290-1 + 3 more

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MONDECO SrL

ACCREDIA 00319 Piobesi d'Alba, IT

ISO 4832 ISO 21527-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 11290-1 + 3 more

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MP Calibration Services

UKAS 0228 Wimborne, GB

(enzephalomyopathische Form LENGTH (continued) ANCILLARY MEASUREMENTS Plain plug gauges (parallel) Micrometers + 3 more

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MPA Eberswalde Materialprüfanstalt Brandenburg GmbH Prüflabor

DAkkS D-PL-11241-01-01 Eberswalde, DE

100 HV 120 > 300 0,8 0,1 0,22 CDC73 Toxizität UGT1A1-Gen rs3064744, rs414832 + 3 more

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MPA Kalibrierdienst

DAkkS D-K-17552-01-01 Berlin, DE

Sound power — survey method (ISO 3746) Sound intensity — scanning method part 2 Vibration measuring instruments — test m Vibration measurements near traffic — ev Acoustics — tonality assessment (DIN 456 + 3 more

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MR COMP

DAkkS D-PL-13383-01-00 Gelsenkirchen, DE

IEC 62570 DIN 13273-7

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MS Laboratories

UKAS 1625 Wellingborough, GB

ISO 11290-1 ISO 11290-2 ISO 15213-2 ISO 6888-1 ISO 13720 + 3 more

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MS2 ENGINEERING und ANLAGENBAU

DAkkS D-K-20595-01-00 Kirchheim unter Teck, DE

Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Railway braking — urban guided transport direktanzeigende > 200 °C Taupunkttemperatur + 3 more

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MSS Consulting

UKAS 0199 Galdames Place, GB

(HSG 264, 2012) Appendix 5 of HSG 227 (2004) Appendix 3 of HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248 + 1 more

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MTC

ACCREDIA 00581 Rosta, IT

Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Technical cleanliness of fluid system co DIN EN ISO 16810 + 3 more

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