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
🇮🇹
UNI EN ISO 14837-1
🇪🇸
UNE EN ISO 14837-1
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NEN EN ISO 14837-1
1,516
Accredited labs
17
Countries
Showing 201–225 of 1,516 labs
Conformity assessment — requirements for
Railway composite brake blocks — require
0,2 kN
0,4 kN
100 kN
+ 3 more
Bundesministerium der Verteidigung Bundeswehrkrankenhaus Berlin Abteilung XVI Laboratoriumsmedizin
Active
NRBC-Normoblasten
Anteil unreifer Retikulozyten
Erythrozyten
DELTA-He
Leukozyten
+ 3 more
Blutungszeit PFA ADP
Blutungszeit PFA EPI
PFA-P2Y
Erythrozyten
Hämatokrit
+ 3 more
Leukozyten
Enteroaggregative E. coli
Legionellen
Staphylokokkus aureus
Salmonellen
+ 3 more
DIN ISO 17289
DIN EN ISO 10523
DIN EN 27888
NF X 31-615 (Uniquement
EN IEC 61000-4
DIN EN IEC 61000
VDE 0847-4
DIN EN 55016-2
DIN EN IEC 61000-6
+ 3 more
C G C Laboratory
Active
(HSG 248) – 2021
(PCM) based on HSG 248
SOP 5, based on HSG 248
SOP 4, based on HSG 248
/ Messgeräte
Radiometrie 100 µW/cm²
stärkemessgeräte
UV-A 365nm
Linearität der
+ 3 more
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
Radiated emissions (CISPR 32)
verwendete Abkürzungen:
ETSI EN 301 489-1: V2.2.3
EN 61000-3-2 and EN 61000-3-3
IEC 61000-6-1
IEC 61000-4-4: 2012
1.4 Electrostatic Discharge EN 61000-4
+ 3 more
C.W.E. Services
Active
(HSG 264, 2012)
HSG 227 (2004))
Safety Executive guides HSG 264
(2012) and App 3 of HSG 227
(HSG 248) – 2021
+ 3 more
CAL
Active
DIN 38402-A 11
DIN 38402-A 12
DIN 38402-A 13
DIN ISO 5667-5 (A 14)
DIN EN ISO 5667-6 (A 15)
+ 3 more
DIN EN ISO 17294-2
DIN EN ISO 14403-2
DIN EN ISO 13395
VDE 414-9-11
DIN EN ISO 10304-1
+ 3 more
CANAGROSA LAB&SERVICES
Active
ISO 2808
ISO 48-4
UNE-EN ISO 2808
ISO 2409
UNE-EN ISO 2360
+ 3 more
CARTESY
Active
Tensile testing of metallic materials (I
Vickers hardness test (ISO 6507)
Kraft
Railway vehicles — specific test require
Railway — traction effort and braking fo
+ 3 more
CATAS SpA
Active
ISO 9308-1
ISO 7899-2
DIN EN ISO 11205
DIN EN ISO 10304-1
ISO 14189
+ 3 more
CEMAFROID - Site de Cestas
Active
DIN EN 13486
IEC
ISO 1496-2 – Conteneurs
DIN EN 16440-1
CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT (CSTB) - Direction, Sécurité, Structures, Feu (DSSF)
Active
NF P 92-501
NF P92-512
EN 13823
EN ISO 1716
NF P 92-504
+ 3 more
DIN EN 1186-3
DIN EN ISO 7730
DIN EN 12457-2
DIN EN ISO 6888-1
DIN EN ISO 7393-2
+ 3 more
No matching labs found.