UIC 541-04

Automatic Variable Load Brake Testing

This test defines specifications for automatic variable load braking systems that adjust braking force proportionally to the vehicle's loading condition, optimizing stopping distance and wheel adhesion. The standard covers the design, functionality, and performance requirements of automatic load-sensing brake control equipment fitted to freight and passenger trains. Testing verifies that braking force automatically adjusts across the range from empty to fully loaded conditions, enhancing safety and reducing wheel slide risk. Accreditation for this test is critical for manufacturers of brake control systems and railway operators ensuring consistent, safe braking performance regardless of train loading.

What it measures

  • Load-proportional braking force adjustment mechanisms
  • Response characteristics across loading range
  • Wheel adhesion optimization and anti-lock performance
  • System reliability and fail-safe functionality
  • Pressure modulation and control accuracy
🇩🇪 DIN EN 14198 🇬🇧 BS EN 14198 🇫🇷 NF EN 14198 🇮🇹 UNI EN 14198 🇪🇸 UNE EN 14198 🇳🇱 NEN EN 14198
1,560 Accredited labs
17 Countries

Showing 601–625 of 1,560 labs

IMD Labor Oderland GmbH MVZ Ärztliches Labor Frank Berthold und Kollegen

Active
DAkkS D-ML-13089-01-00 Frankfurt (Oder), DE
HbA1c Eosinophile, Basophile, MCV, MCH) Retikulozyten Urinsediment Elektrolyte (Kalium, Natrium, Chlorid) + 3 more
View Profile

IMPELAB

Active
COFRAC 1-6403 Marrakech, MA
DIN EN ISO 7932 DIN EN ISO 6579-1 DIN EN ISO 7937 DIN EN ISO 11290-1 0.95) based on BS ISO 21527-2:2008 + 2 more
View Profile

IMQ IBÉRICA, S.L. (Unipersonal)

Active
ENAC LE2135 Picanya, ES
DIN EN 61347-2-11 IEC 61347-2-11 IEC 61000-4-11: 2004 DIN EN 61347-2-13 ISO 7637-2 + 3 more
View Profile

IMQ SpA

Active
ACCREDIA 00013 Milano, IT
DIN EN 62053-23: 2017-09 DIN EN ISO 11816-1 IEC 62109-1 IEC 60598-2-2 DIN EN 62053-24 + 3 more
View Profile

INERCO INSPECCIÓN Y CONTROL

Active
ENAC LE774 Sevilla, ES
UNE-EN 15259 UNE-EN 13284-1 UNE 77225 EPA 8 UNE 77227 + 3 more
View Profile

INNONATION

Active
ACCREDIA 02189 Catania, IT
ETSI EN 319 412 ETSI EN 319 401 ETSI EN 319 411-2 ETSI EN 319 411-1
View Profile

INOVALYS - Site de Nantes

Active
COFRAC 1-7140 Nantes Cedex 3, FR
NF V 05-116 NF V 04-415 NF V 04-407 NF V04-403 NF V04-401 + 3 more
View Profile

INOVALYS - Site de Vannes

Active
COFRAC 1-7142 Saint Ave, FR
NF V08-106 DIN EN ISO 17294-2 DIN EN ISO 21528-2 ISO 19343 NF T90-105-2 + 3 more
View Profile

INSTAND e.V. - Gesellschaft zur Förderung der Qualitätssicherung in medizinischen Laboratorien e.V. Kalibrierlabor

Active
DAkkS D-K-15027-01-00 Düsseldorf, DE
Plasma, Serum, Plasma 0,5 mmol/L Plasma, Serum, Plasma 50 mmol/L Plasma, Serum, Plasma Material Urin + 3 more
View Profile

INSTITUT MECASEM

Active
COFRAC 1-7322 Ostwald Cedex, FR
(BS EN ISO 6892-1: 2019) ASTM E8/E 8M DIN EN 10002-1 ASTM E8 et E8M DIN EN 2002-001 + 3 more
View Profile

INSTITUT PASTEUR DE MADAGASCAR Laboratoire d'Hygiène des Aliments et de l'Environnement

Active
COFRAC 1-1872 - | Bp 1274 Antananarivo 101 | Madagascar, MG
DIN EN ISO 7932 DIN EN ISO 22964 NF V08-059 DIN EN ISO 6579-1 NF V08-036 + 3 more
View Profile

INSTITUTO DE CIENCIAS DE LA CONSTRUCCIÓN EDUARDO TORROJA (IETcc) DE LA AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS (CSIC).

Active
ENAC LE2284 Madrid, ES
UNE-EN 12667 UNE-EN 14509 UNE-EN ISO 29470 UNE-EN 826 UNE-EN 1607 + 3 more
View Profile

INSTITUTO NACIONAL DE TECNICA AEROESPACIAL "ESTEBAN TERRADAS" (INTA)

Active
ENAC LC10.007 Torrejón de Ardoz, ES
ISO 16063-21 EN 55016-1-6 CEM EL-025 UNE-EN ISO 376 UNE-EN ISO 7500-1 + 3 more
View Profile

INSTITUTO NACIONAL DE TÉCNICA AEROESPACIAL "ESTEBAN TERRADAS" (INTA)

Active
ENAC LE1285 Torrejón de Ardoz, ES
UNE-EN ISO 10704 UNE 73350-1 UNE 73311-5 ISO 11665-4 UNE 31010 + 1 more
View Profile

INSTITUTO TECNOLOGICO DE ARAGON (ITA)

Active
ENAC LE257 Zaragoza, ES
IEC 61000-4-13: 2002 DIN EN 50121-3-2 IEC 61000-3-2: 2014 DIN EN 60601-1-2 IEC 61000-3-3 + 3 more
View Profile

INSTITUTO VALENCIANO DE MICROBIOLOGIA

Active
ENAC LE1286 Bétera, ES
DIN EN 1040 DIN EN 1656 DIN EN 14561 IEC 60127-6 DIN EN 13727 + 3 more
View Profile

INSTRUMENTOS WIKA, S.A. (Unipersonal)

Active
ENAC LC10.039 Sabadell, ES
CEM ME-003 EURAMET cg-17 CEM ME-010 Ground-borne noise and vibration from ra UNE-EN ISO 16911-1 + 3 more
View Profile

INTERTEK FRANCE

Active
COFRAC 1-7401 Heudebouville, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
View Profile

INTERTEK France

Active
COFRAC 1-1296 Heudebouville, FR
DIN EN ISO 1833-6 DIN EN ISO 1833-2 DIN EN ISO 1833-7 DIN EN ISO 1833-1 DIN EN ISO 1833-20 + 3 more
View Profile

IPH Institut "Prüffeld für elektrische Hochleistungstechnik"

Active
DAkkS D-PL-12107-01-00 Berlin, DE
IEC 62271-1: 2017-07 DIN EN 62271-1 VDE 0671-1 IEC 62271-100: 2021 VDE 0671-100 + 3 more
View Profile

ISEGA, Forschungs- und Untersuchungs

Active
DAkkS D-PL-14160-01-01 Aschaffenburg, DE
DIN EN 1230-1 EN 1230-2 DIN 10955 DIN ISO 8784-1 DIN 54378 + 3 more
View Profile

ITALCERTIFER

Active
ACCREDIA 00447 Firenze, IT
EN 14531-1 DIN EN 50215 UNI EN 14531-2 DIN EN 16334 DIN EN 15355 + 3 more
View Profile

ITC - CNR

Active
ACCREDIA 01854 San Giuliano Milanese, IT
DIN EN 14019 EN ISO 1716 IEC 60512-15-2 BS EN ISO 1716:2002 DIN EN 1026 + 3 more
View Profile

ITGA NORMANDIE

Active
COFRAC 1-6304 Petit Couronne, FR
NF X43-050 (parties utiles de ISO 22262-1 NF X 43-050 NF X 43-269 - Annexe K
View Profile

ITS Testing Services (UK)

Active
UKAS 1516 Leigh, GB
BS EN ISO 1833-1:2020 And the following parts of ISO 1833 ISO 1833-4:2017/EU Reg. method 2ISO 1833 ISO 1833-3: 2019 ISO 1833-6: 2019 + 3 more
View Profile

No matching labs found.

Industries

Railway rolling stock manufacturers Brake control system suppliers Freight train operators Passenger rail services Railway certification and safety authorities

Related Standards

  • UIC 541-01 Railway brakes — Braking power
  • UIC 541-05 Railway brakes — Anti-slide device
  • EN 14198 Railway applications — Wheelsets and bogies — Safety requirements for thermal management

Other Test Methods

0 labs selected
Compare