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 51–75 of 1,323 labs

AS International Corporation

UKAS 4352 Liverpool, GB

ISO 5983-1:2005/Cor.1:2008, ISO20483:201 07L.1.07 based on ISO 6865:2001 ISO 712 07L.1.02 based on ISO 6496:1999, ISO 12966-2 + 3 more

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ASOCIACION EMPRESARIAL CENTRO TECNOLOGICO DEL METAL DE LA REGION DE MURCIA

ENAC LC10.098 San Ginés, ES

EURAMET cg-18 CEM Ed CEM GUIA CEM TH-001 CEM TH-007 + 3 more

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ASOCIACION INSTITUTO DE BIOMECANICA DE VALENCIA (IBV)

ENAC LE1105 Valencia, ES

DIN EN 13864 DIN EN 14808 DIN EN 12235 ISO 2549 ISO 4919 + 3 more

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AIJU

ENAC LE016 Ibi, ES

UNE-EN 71-1 ISO 8124-1 ISO 8124-2 ASTM F963-17 (NM_001718: c.1-c.500) + 3 more

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AITEX

ENAC LE025 Alcoi, ES

DIN EN ISO 11612 DIN EN ISO 3175-2 ISO 17493 DIN EN ISO 17227 DIN EN ISO 6330 + 3 more

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ITC

ENAC LE004 Castellón de la Plana, ES

UNE-EN ISO 10545-2 UNE-EN ISO 10545-3 ASTM C373 UNE-EN ISO 10545-4 UNE-EN ISO 10545-5 + 3 more

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INESCOP

ENAC LE146 Elda, ES

DIN EN ISO 20344 DIN EN 13634 BS EN ISO 20344::2011 Clause 5.1 DIN EN ISO 22568-1 ISO 22568-1: 2019 Clause 5.2.1 + 3 more

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ASOCIACIÓN LACECAL, LABORATORIO DE CALIBRACIÓN ELÉCTRICA DE CASTILLA Y LEÓN.

ENAC LC10.028 Valladolid, ES

0 mV ≤ U < 200 mV 0,2 V ≤ U < 2 V 2 V ≤ 1 mV ≤ U < 220 mV 0,22 V ≤ U < 2,2 V 2,2 0 mV ≤ U ≤ 100 mV 0,1 V < U ≤ 1 V 1 V < 0 μA ≤ I < 200 μA 0,2 mA ≤ I < 2 mA 2 mA 0 μA ≤ I < 220 μA 0,22 mA ≤ I < 2,2 mA 2 + 3 more

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