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
Accredited labs
17
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nach DIN EN ISO 3650:1999
EURAMET CG-6
ISO 5436-1
CEM DI-013
CEM DI-012
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UNE-EN ISO 10704
UNE-EN ISO 10703
EPA 903.0
EPA 909.0
ISO 13161
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CEM DI-025
CEM DI-018
UNE-EN ISO 21920-3
CEM DI-009
CEM DI-003
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UNE-EN ISO 7887
UNE-EN ISO 17852
UNE-EN ISO 8467
ISO 7150-1
SM 2510 B
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LABORATORIOS EYCO
Active
ISO 5-3
ISO 2813
UNE-EN ISO 9342-1
UNE-EN ISO 8598-1
ISO 3664
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LABORATORIOS OMEGA
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UNE 10523
UNE 27888
UNE 7027-1
ISO 23695
UNE-EN ISO 9308-1
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UNE-EN 7027-1
UNE-EN ISO 10523
SM 2520 B
UNE EN 27888
UNE-EN 872
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UNE-EN 12015
UNE-EN 50065-1
UNE-EN IEC 61000-6-4
UNE-EN IEC 61000-6-3
UNE-EN 61000-6-3
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UNE-EN 14385
UNE-EN 15259
UNE-EN 13211
BS ISO 9096:2017
UNE 77216
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UNE-EN 14363
UNE-EN 50367
UNE-EN 50317
UNE-EN 12663-1
CEM DI-021
CEM DI-004
CEM EL-007
CEM DI-003
CEM DI-008
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EURAMET CG-6
CEM DI-021
CEM DI-004
CEM DI-013
CEM DI-012
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DIN EN 61010-2-010: 2015
DIN EN 60335-2-9
IEC 61000-4-8: 2009
IEC 61010-2-010: 2014
DIN EN 61010-2-101
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TECNATOM, S.A. (Unipersonal)
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UNE 73109
IEC 60780 (1998)
UNE 73109 (2001)
ISO 28218
ISO 27048
UNE-EN ISO 14644-3
UNE-EN ISO 14644-1 (sin realizar toma se
ISO 14644-3
UNE-EN 12469
THOR ESPECIALIDADES
Active
DIN EN 16615
DIN EN 17658
DIN EN 13697
IEC 60127-6
DIN EN 13727
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UNE-EN ISO 868
ASTM D 2240
ISO 48-9
UNE 7050-3
UNE-EN ISO 10360-2
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UNE-EN 60903
UNE-EN IEC 61243-1
UNE-EN 50508
UNE 204001
UNE-EN 61111
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UNE-EN 14181
UNE-EN 13284-2
UNE-EN 15259
UNE-EN 16911-2
UNE-EN 14385
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