ISO 3381:2013 / EN ISO 3381

Railway Interior Noise Measurement

ISO 3381 specifies standardized measurement procedures for determining sound pressure levels inside railbound passenger and freight vehicles under operating conditions. This test assesses passenger comfort, crew exposure, and compliance with occupational and environmental noise limits within train cabins and compartments. Manufacturers, operators, and occupational health consultants use these measurements to evaluate cabin acoustic quality, design noise control improvements, and ensure regulatory compliance. Accreditation guarantees consistent, defensible interior noise assessments that support both passenger safety and worker health protection.

What it measures

  • A-weighted sound pressure level inside vehicle (dB(A))
  • Noise levels at driver/operator positions
  • Frequency analysis of interior noise (1/3 octave bands)
  • Sound exposure level during typical operation
  • Noise at passenger seating areas
🇩🇪 DIN EN ISO 3095 🇬🇧 BS EN ISO 3095 🇫🇷 NF EN ISO 3095 🇮🇹 UNI EN ISO 3095 🇪🇸 UNE EN ISO 3095 🇳🇱 NEN EN ISO 3095 🇩🇪 DIN EN ISO 14837-1 🇬🇧 BS EN ISO 14837-1 🇫🇷 NF EN ISO 14837-1 🇮🇹 UNI EN ISO 14837-1 🇪🇸 UNE EN ISO 14837-1 🇳🇱 NEN EN ISO 14837-1
1,516 Accredited labs
17 Countries

Showing 1,276–1,300 of 1,516 labs

UL International (UK)

Active
UKAS 5772 Basingstoke, GB
DIN EN 12209 DIN EN 1155 DIN EN 12179 DIN EN 1935 DIN EN 1670 + 3 more
View Profile

UL International Germany

Active
DAkkS D-PL-19381-01-02 Neu-Isenburg, DE
IEC 61851-1: 2010 IEC 61851-23 IEC 62109-1 IEC 62109-2 IEC 61010 + 3 more
View Profile

UL International Italia Srl

Active
ACCREDIA 00999 Carugate, IT
DIN EN 60068-2-30 IEC 61000-6-1 AS/NZS CISPR 22:2006 IEC 61000-6-2: 2005 ETSI EN 303 446-2 + 3 more
View Profile

UL TS

Active
RvA L662 'S-Gravenhage, NL
IEC 18045 IEC 15408-1
View Profile

UL VS

Active
UKAS 0224 Finchampstead, GB
(HSG 264, 2012) and Appx. 3 of HSG 227 (2004)) guides HSG 264 (2012) and ACoP L8 and BS 8580-1:2019
View Profile

UNIMA Präzisionsmaschinen

Active
DAkkS D-K-19403-01-00 Grävenwiesbach, DE
Messschieber für 0 mm Außen-, Innen- und Bügelmessschrauben 0 mm Messuhren mit Feinzeiger + 3 more
View Profile

UNIMETRIK

Active
ENAC LC10.082 Legutiano, ES
CEM DI-007 CEM DI-021 CEM DI-004 CEM DI-018 CEM DI-002 + 3 more
View Profile

UNIVERSITAT DE GIRONA

Active
ENAC LE2485 Girona, ES
UNE-EN 25663 UNE-EN 872 UNE-EN ISO 6878 UNE EN 27888 UNE-EN ISO 10523 + 3 more
View Profile

URIKER

Active
ENAC LE775 Zamudio, ES
UNE 77061 SM 4500-NO-3 E UNE-EN ISO 7027-1 ISO 15923-1 UNE-EN ISO 7393-2 + 3 more
View Profile

UTILES Y MAQUINAS INDUSTRIALES, S.A. (UMI)

Active
ENAC LC10.024 Zamudio, ES
UNE-EN ISO 16859-2 (Método indirecto) UNE-EN ISO 6507-2 ASTM E 92 UNE-EN ISO 6508-2 (Método indirecto) UNE-EN ISO 6506-2 (Método indirecto) + 3 more
View Profile

Uniper Technologies

Active
UKAS 2200 Ratcliffe-on-Soar, GB
DIN EN 13284-1 BS EN ISO 23210:2009 requirements of BS EN 14181:2014 IEC 60519-11 requirements of BS EN + 3 more
View Profile

Universal Instrument Services

Active
UKAS 0125 Blaby, GB
Chronic progressive external LENGTH Micrometer heads Dial gauges and dial test Depth + 3 more
View Profile

University of Salford

Active
UKAS 1660 Salford, GB
DIN EN 12667 ISO 8301 DIN EN 12939 DIN EN 12664 DIN EN ISO 13163 + 3 more
View Profile

University of Salford

Active
UKAS 0801 The Crescent, GB
Pistonphones Microphones LS2/WS2 microphones based: Reverberation Time
View Profile

University of Salford

Active
UKAS 1262 Salford, GB
BS EN ISO 10140-2:2021 DIN EN ISO 11654 ISO 354 ISO 7171 ASTM E90-09(2016) + 3 more
View Profile

Universität Regensburg Institut für Humangenetik

Active
DAkkS D-ML-13082-01-00 Regensburg, DE
Achromatopsie (Panel) (ATF6, CNGA3, CNGB Albinismus (OCA2) Alport-Syndrom (Panel) (COL4A1, COL4A3, Amyloidose (Panel) (APOA1, APOA2, APP, B Arrhythmien (Panel) (ACTC1, ACTN2, BAG3, + 3 more
View Profile

Universität Stuttgart Institut für Gebäudeenergetik, Thermotechnik und Energiespeicherung

Active
DAkkS D-PL-11027-01-01 Stuttgart, DE
DIN EN 442-2 DIN EN 16430-1 DIN EN 16430-2 DIN EN 16430-3 DIN 4703-3 + 3 more
View Profile

Universität Stuttgart Materialprüfungsanstalt

Active
DAkkS D-K-11027-01-02 Stuttgart, DE
Sound power — engineering method using a Sound power — survey method (ISO 3746) Sound power — in-situ using reference so Sound intensity — scanning method (ISO 9 Sound intensity — scanning method part 2 + 3 more
View Profile

Universität Stuttgart Materialprüfungsanstalt Universität Stuttgart

Active
DAkkS D-PL-11027-04-01 Stuttgart, DE
DIN EN ISO 4590 DIN EN ISO 9053-1 DIN EN ISO 12571 DIN EN ISO 12572 DIN EN ISO 15148 + 3 more
View Profile

Universitätsklinikum Aachen AöR (Uniklinik RWTH Aachen) Institut für Humangenetik und Genommedizin

Active
DAkkS D-ML-13154-02-00 Aachen, DE
Syndrom/Silver-Russell-Syndrom) SMN1 (SMA) FMR1-Gen (fraX, POF, FXTAS) Charcot-Marie-Tooth-Erkrankung Cardiolipin (CMT) + 3 more
View Profile

Universitätsklinikum Aachen AöR (Uniklinik RWTH Aachen) Labordiagnostisches Zentrum

Active
DAkkS D-ML-13154-03-00 Aachen, DE
Adrenalin Dopamin 5-Hydroxyindolessigsäure Homovanillinsäure Noradrenalin + 3 more
View Profile

Universitätsklinikum Aachen AöR (Uniklinik RWTH Aachen) Zentrum für Humangenetik und Genommedizin

Active
DAkkS D-ML-13154-02-01 Aachen, DE
(Long Read): SNV, CNV, Repeats FMR1-Gen (fraX, POF, FXTAS) Charcot-Marie-Tooth-Erkrankung Cardiolipin (CMT) GARS1, GDAP1, GJB1, HSPB1, IGHMBP2, LITA + 3 more
View Profile

Universitätsklinikum Aachen AöR (Uniklinik RWTH Aachen) lnstitut für Transfusionsmedizin und Zelltherapeutika

Active
DAkkS D-ML-13154-01-01 Aachen, DE
Leukozyten (WBC) Erythrozyten (RBC) Hämatokrit (HCT) MCV Thrombozyten + 3 more
View Profile

Universitätsklinikum Bonn Institut für Experimentelle Hämatologie und Transfusionsmedizin

Active
DAkkS D-ML-13125-01-00 Bonn, DE
Thrombozytenaggregation Agonisten: ADP, ADP-PGE1, heparininduzierter Antikörper Heparin induzierter Thrombozytopenie Typ II (HIT II) + 3 more
View Profile

Universitätsklinikum Bonn Institut für Humangenetik

Active
DAkkS D-ML-13125-03-01 Bonn, DE
Bannayan-Ruvalcaba-Riley-Syndrom (institutseigene Erweiterung des Illumina TruSight Cancer Panel): PTEN, AKT1, PIK3CA, SEC23B Syndrom (institutseigene + 3 more
View Profile

No matching labs found.

Industries

Railway rolling stock manufacturers Railway operators and fleet managers Occupational health and safety consultants Acoustic and noise control engineering Passenger transport and commuter rail

Related Standards

  • EN ISO 3095 Acoustics — Measurement of noise emitted by railbound vehicles
  • ISO 14837-1 Vibration from rail systems — Part 1: Fundamentals and measurement of vibration in free-field
  • EN 50160 Voltage characteristics of electricity supplied by public electricity networks

Other Test Methods

0 labs selected
Compare