Scope
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
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DIN EN ISO 3095
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BS EN ISO 3095
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NF EN ISO 3095
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UNI EN ISO 3095
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UNE EN ISO 3095
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NEN EN ISO 3095
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DIN EN ISO 14837-1
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BS EN ISO 14837-1
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NF EN ISO 14837-1
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UNI EN ISO 14837-1
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UNE EN ISO 14837-1
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NEN EN ISO 14837-1
1,516
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UNE-EN 1097-2
UNE-EN 933-1
UNE-EN 13450
UNE-EN 933-3
UNE-EN 50317
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ADOUR BIO CONSEIL - A.BIO.C.
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0.95) based on BS ISO 21527-2:2008
DIN EN ISO 6888-2
DIN ISO 16649-2
DIN EN ISO 6888-3
DIN ISO 11665-4
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DIN EN ISO 6888-2
DIN ISO 16649-2
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UNE 27888
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ISO 15923-1
SM 3500
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ISO 15213-1
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DIN EN ISO 6579-1
ISO 22964
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NF EN 12469 Annexe H pour PSM
NF X 44-201 (Octobre 1984) pour PSM
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NF X 44-201
DIN EN 12469
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UNE-EN 25663
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DIN ISO 10381-2
DIN ISO 10381-4
DIN ISO 10381-5
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DIN ISO 18400-203
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AGRUPA LABORATORIO, S.L.L.
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EPA 8270
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UNE-EN ISO 5815-1
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UNE EN 27888
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UNE-EN 77059
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AIP
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Railway brake — anti-slide device (UIC 5
Railway brake — magnetic track brakes (U
Railway brakes — conditions for homologa
Messgeräte im Kraftfahrwesen
− Abgasmessgeräte für Fremdzündungsmotor
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DIN EN 1793-5
ASTM E 415 21
DIN EN 14726
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DIN ISO 5667-5 (A 14)
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IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-3: 2006
VDE 0847
IEC 61000-4-4: 2012
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IEC 61400-12-1 *
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IEC 61400-50 *
IEC 61400-50-1 *
IEC 61400-50-2 *
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ALS
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NF X 43-269
NF X43-050 (parties utiles de
ISO 22262-1
NF X 43-257
NF X 43-050
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ALS France
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DIN EN 14902
DIN ISO 16000-3
DIN EN ISO 16017-1
DIN EN ISO 16017-2
DIN ISO 16000-4
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