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

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DAkkS D-ML-13219-01-00 Dresden, DE
Akkreditierungsbereich. Die Liste ist Erythrozyten Leukozyten Hämatokrit Thrombozyten + 3 more
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AB0-System Isoagglutinine (Serumeigenschaften) Rh-Merkmal D Rh-Untergruppen + 3 more
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DAkkS D-ML-13327-01-00 Hagen, DE
AB0-Blutgruppen-Merkmale Isoagglutinine (Serumeigenschaften) Rhesusmerkmale K-Merkmale + 3 more
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DAkkS D-K-20506-01-01 Aachen, DE
am Standort DSA Daten- und Systemtechnik Schreibendes Bremsmessgerät (HU-Adapter) Beschleunigung + 1 more
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DAkkS D-PL-14555-02-01 Karlsruhe, DE
ASTM D 3227 DIN 3500 EN 14350-2 DIN EN 12350-9 DIN 53512 + 3 more
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DAkkS D-PL-12098-01-01 Karlsruhe, DE
(SPG42), SPAST (SPG4), SPG11, SPG7, VAMP DIN EN 30-1-1 DIN EN 30-1-2 DIN 13013 DIN 13014 + 3 more
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DAkkS D-K-23327-01-01 Bad Camberg, DE
Metrologic Group GmbH, nalen von: Wernau, D Neuss, D ≤ 1515 mm Wetzlar, D S.p.A., Turin, I + 3 more
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DAkkS D-PL-17009-06-00 Wiesbaden, DE
DIN EN 60950-1 EN IEC 62368-1 DIN EN 60204-1 DIN EN 60825-1 DIN EN 61010-1 + 3 more
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DAkkS D-PL-17009-02-00 Mainz, DE
DIN 31051 DIN EN 1005-1 DIN EN 1993-1-1 DIN EN 1993-1 DIN EN 1993-6 + 3 more
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DAkkS D-PL-17009-07-02 Köln, DE
IEC 60335-1: 2010 IEC 60335-2-29 DIN EN 60335-2-29 IEC 60335-2-65 DIN EN 60335-2-65 + 3 more
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DAkkS D-PL-17009-09-01 München, DE
DIN 4420-1 DIN 4420-3 DIN EN 61347-1 ISO 12117-2 DIN 53449 + 3 more
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DAkkS D-PL-17009-02-01 Mainz, DE
VDE 0113-201 VDE 0113-202 DIN EN 60204-1 EN 61508-1: VDE 0803-1 + 3 more
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DAkkS D-PL-17009-29-02 Langenhagen, DE
ID136 DIN EN 137 100 C>T, 124 G>A, 137_138 > 140 Amyloid β 1-42 + 3 more
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DAkkS D-PL-17009-01-01 Hamburg, DE
DIN EN ISO 15106-3 DIN EN ISO 1522 DIN 30720-1: 2016-02 DIN 30720-2: 2009-10 DIN 30722-1: 2021-12 + 3 more
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DAkkS D-PL-17009-08-00 Mannheim, DE
DIN EN ISO 11357-4 IEC 61037 DIN EN ISO 13850 DIN EN ISO 13855 ISO 14119 + 3 more
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DAkkS D-PL-17009-34-00 Sankt Augustin, DE
DIN 58620: 2007-02 DIN 58621: 2011-10 DIN 58647-7: 1997-12 ID136 > 140 + 3 more
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DAkkS D-PL-18020-01-01 Varel, DE
IEC 61400-12 IEC 61400-12-1 IEC 61400-12-2 IEC 61400-12-3 IEC 61400-12-5 + 3 more
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DAkkS D-K-11170-01-00 Hamburg, DE
Railway brakes — conditions for homologa − Durchfluss von Flüssigkeiten − Strömungsgeschwindigkeit von Gasen − Widerstandsthermometer − Temperatur-Transmitter, Datenlogger + 3 more
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DAkkS D-ML-13068-01-00 Berlin, DE
ADP ASPI TRAP Amiodaron, Desethylamiodaron Mycophenolsäure + 3 more
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DAkkS D-ML-18903-01-00 Rostock, DE
Chromosomensatz (angeboren) Chromosomensatz (erworben) Adrenogenitales Syndrom Angelman-Syndrom (15q11-Region, UBE3A) Mikrodeletionen; AZFa-c) + 3 more
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DAkkS D-ML-21150-01-00 Berlin, DE
HbA1c Differentialblutbild, maschinell Retikulozyten, maschinell Kleines Blutbild Thrombozyten + 3 more
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DAkkS D-K-19516-01-00 Ansbach, DE
Volumen strömender 0,0005 m − Durchfluss von Flüssigkeiten 0,025 m Wasserzähler und 0,001 m Durchflusssensoren + 3 more
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DAkkS D-K-20015-01-01 Lahr, DE
Absolutdruck p * Vickers hardness test (ISO 6507) Flüssigkeitsvolumen * variablem Volumen aufnehmern sowie + 3 more
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DAkkS D-ML-13252-01-01 München, DE
Blutbild groß Thrombozyten Urinsediment Natrium Kalium + 3 more
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DAkkS D-ML-19642-02-00 Ronnenberg, DE
Aminosäureprofil Guanidinoacetat Kreatin Hämoglobinprofil Nitisinon (NTBC), Succinylaceton + 3 more
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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

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