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
🇩🇪
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
Showing 751–775 of 1,516 labs
LDA 13
Active
NF V08-106
DIN EN ISO 17294-2
NF T 90-412
NF U47-105
DIN EN ISO 7899-1
+ 3 more
DIN EN ISO 17604
NF V08-401
0.95) based on BS ISO 21527-2:2008
DIN EN ISO 6888-2
DIN ISO 16649-2
+ 3 more
LDH Kalibrierservice
Active
Gleichspannung 1 mV bis 10 mV
Messgeräte > 10 mV bis 100 mV
> 100 mV bis 220 mV
> 220 mV bis 2,2 V
> 2,2 V bis 11 V
+ 3 more
NF X 43-269
DIN 51750-3
NF X 46-032
NF EN 15934 –
NF X 43-269 – Annexe K
+ 3 more
UNE-EN 12015
UNE-EN 50065-1
UNE-EN IEC 61000-6-4
UNE-EN IEC 61000-6-3
UNE-EN 61000-6-3
+ 3 more
LHEM
Active
NF EN ISO 6892-1 Méthode B
DIN EN ISO 6508-1
ISO 4969
DIN EN 10002-1
DIN EN ISO 643
+ 3 more
LIDAL
Active
NF T 90-412
DIN EN ISO 7899-1
DIN EN ISO 10304-1
DIN EN ISO 6888-2
DIN ISO 16649-2
+ 3 more
DIN EN ISO 2505
ISO 18553 AMD 1
DIN EN 12099
ISO 13480
ISO 6964
+ 3 more
LSEHL- Site de Venissieux
Active
ISO 15202-3
NF X43-551
NF X 43-317
NF X 43-294 (juin
DIN EN ISO 16017-2
+ 3 more
LUFA Nord-West
Active
DIN EN 13040
DIN EN 12580
DIN EN 13039
DIN EN 13037
DIN EN 13038
+ 3 more
LUX-TSI
Active
DIN EN 13032-4
BS EN ISO 13032-1 +A1:2012
IEC 62612 ed1.0 (2013-06)
IEC 62722-1 ed1.0 (2014-09)
IEC 62722-2-1 ed1.0 (2014-11)
+ 3 more
La Patrie srl
Active
DIN EN 13520
DIN EN 1010-5
DIN EN 1570-1
DIN EN ISO 17228
DIN EN ISO 11640
Labor 28 MVZ
Active
Thrombozytenfunktionstest
5-Hydroxyindolessigsäure
Amiodaron, Desethylamiodaron
Tricyclische Antidepressiva
Kohlenhydratdefizientes
+ 3 more
Labor Augsburg MVZ
Active
Thrombozytenaggregation
a-Hexachlorcyclohexan
2-Butanon
Aceton
Benzol
+ 3 more
Labor Becker MVZ e
Active
Drogenscreening-Qualitativer
Anti-HCV-Bestätigungstest
Benzodiazepine, Kokain, Opiate, Buprenor
Organische Säuren
Neuroleptika, Antidepressiva
+ 3 more
Thrombozytenaggregation
(ADP, ASPI, TRAP)
Oligosaccharide
Aceton
Ethanol
+ 3 more
Thrombozytenaggregation
(ADP, ASPI, TRAP)
Oligosaccharide
Aceton
Ethanol
+ 3 more
Ampicillin
Cefepim
Ceftazidim
HbA1c
Katecholamine
+ 3 more
qualitative Bestimmung von
Antidepressiva, Cocain, Designerdrogen u
Mitogenen, Medikamenten
5-Hydroxyindolessigsäure
HbA1c
+ 3 more
Thrombozytenfunktion
Cyclosporin A
Everolimus
Lacosamid
Lamotrigin
+ 3 more
Labor Knechten
Active
Basophile
Basophile (rel.)
CD3- CD16+ CD56+
CD3- CD19+
CD10+CD3+
+ 3 more
Labor Krause & Kollegen MVZ
Active
10-Hydroxy-Carbamazepin
9-Hydroxyrisperidon
Amiodaron, Desmethylamiodaron
Amisulprid
Aripiprazol
+ 3 more
No matching labs found.