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

1,273 Accredited labs

15 Countries

Showing 51–53 of 53 labs

SNCF - AGENCE D'ESSAIS FERROVIAIRE

COFRAC 1-6879 Vitry Sur Seine, FR

ISO 13737 NF ISO 22286 ASTM D 2137 NF F19-503 NF T60-190 + 3 more

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SOCIETE FRANÇAISE DE CERAMIQUE

COFRAC 1-0062 Les Ulis, FR

DIN EN ISO 10545-3 DIN EN 997 DIN EN ISO 10545-4 DIN EN ISO 10545-14 DIN EN ISO 10545-6 + 3 more

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TERANA PUY-DE-DOME

COFRAC 1-6120 Lempdes, FR

NF T 90-412 NF U47-101 DIN EN ISO 7899-1 DIN ISO 16649-2 DIN EN ISO 6888-2 + 3 more

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EN ISO 3095 Acoustics — Measurement of noise emitted by railbound vehicles
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