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
1,560 Accredited labs
17 Countries

Showing 1,001–1,025 of 1,560 labs

ACCREDIA 00036 Biassono, IT
DIN EN 62368-1: 2016 DIN EN 61326-2-6 DIN EN 61010-2-101 EN IEC 62368-1 IEC 61326-2-6 + 3 more
View Profile
COFRAC 1-0646 - Cergy Saint-Christophe, FR
DIN EN ISO 7932 DIN EN ISO 6888-1 ISO 15213-1 DIN ISO 16649-2 DIN EN ISO 6888-3 + 3 more
View Profile
UKAS 32076 Clervaux Terrace, GB
(HSG 264, 2012)
View Profile
DAkkS D-PL-17693-02-01 Hannover, DE
DIN EN ISO 15061 (D 34) DIN EN 27888 (C 8) DIN EN 1484 (H 3) ISO 5667-21 DIN 38404-C 10 + 3 more
View Profile
DAkkS D-K-18679-01-02 Bad Laer, DE
− Durchfluss von Gasen Railway brakes — brake performance (UIC − Wärmezähler Volumendurchfluss und 25 L/h Volumen strömender + 3 more
View Profile

Normec DETS

Active
UKAS 2139 Consett, GB
BS 1377: Part 2: 1990 DIN EN 12457 No DETSC 5012 based on BS EN staining based on HSG 248. (HSG 248) – 2021 + 1 more
View Profile

Normec VRO

Active
RvA I203 Geldermalsen, NL
#EN ISO 5164:14 # EN 116-97 NEN 4400-1 # ISO 13736 #ISO 6618 + 3 more
View Profile
DAkkS D-K-18539-01-00 Falkensee, DE
Tensile testing of metallic materials (I positiver Überdruck -0,01 bar Absolutdruck p abs Taupunkttemperatur + 3 more
View Profile
DAkkS D-K-15132-01-00 Oelde, DE
Akustik Übertragungsmaß von Messmikrofonen Messmikrofonen mit Dämpfung eines + 3 more
View Profile
UKAS 7691 Shotton, GB
(HSG 248) – 2021 NSDOC 47 based on HSG 248 staining based on HSG 248. (PCM) based on HSG 248
View Profile

Not One Iota

Active
UKAS 8998 Portadown, GB
(HSG 248) – 2021 SOP-12, based on HSG 248 staining based on HSG 248 (PCM) based on HSG 248
View Profile
UKAS 0573 Thurso, GB
AIR KERMA RATE AMBIENT DOSE HBs-Antigen (Hepatitis B-Surface RESPONSE: PERSONEL DOSE
View Profile
UKAS 0282 Harlow, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248
View Profile
ENAC LE2316 Pozuelo de Alarcón, ES
UNE-EN 14385 UNE-EN 15259 UNE-EN 13211 BS ISO 9096:2017 UNE 77216 + 3 more
View Profile

OHEC (uk)

Active
UKAS 0394 Prestwich, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004))
View Profile

OHS

Active
UKAS 21882 Manchester, GB
(HSG 264, 2012)
View Profile
DAkkS D-K-15218-01-00 Friedrichsdorf (Taunus), DE
Druck 0,03 bar Absolutdruck Pabs > -0,3 bar > 3,0 bar > −0,02 bar + 3 more
View Profile
DAkkS D-K-20502-01-01 Leipzig, DE
Positiver und negativer Positiver Überdruck p e −0,95 bar > 2,5 bar > 25 bar + 3 more
View Profile
DAkkS D-K-20427-01-00 Lörrach, DE
− Wärmezähler Durchflusssensoren als Teilgeräte von Wärme- und Kältezählern: + 3 more
View Profile
COFRAC 1-5809 Bruay La Buissiere, FR
DIN EN 27888 NF X 31-615 (Uniquement DIN EN ISO 10523
View Profile
DAkkS D-K-15021-01-01 Aschaffenburg, DE
Railway brake — magnetic track brakes (U − Ebenheit − Geradheit − Winkelnormale auch als Vor-Ort-Kalibrierung + 3 more
View Profile
UKAS 2769 Blyth, GB
IEC 61400-23 ASTM G73 (2012) IEC 60885-3, 2.4.1 IEC 60502-2 IEC 60840 + 3 more
View Profile
RvA I073 Tilburg, NL
ISO 11819-1 (N 2 O) 0,000008 DIN EN ISO 16911-1 AG2 and IS EN 15259:2007 DIN EN 14790 + 3 more
View Profile
UKAS 2048 Avonmouth, GB
ISO 6888-1 ISO 21528-2 BS ISO 4832:2006 ISO 4833-1 ISO 6579-1 + 3 more
View Profile
UKAS 0286 Bradford, GB
DC Resistance DC CURRENT DC VOLTAGE DC RESISTANCE (cont’d)
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