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
๐ฉ๐ช
DIN EN ISO 3095
๐ฌ๐ง
BS EN ISO 3095
๐ซ๐ท
NF EN ISO 3095
๐ฎ๐น
UNI EN ISO 3095
๐ช๐ธ
UNE EN ISO 3095
๐ณ๐ฑ
NEN EN ISO 3095
๐ฉ๐ช
DIN EN ISO 14837-1
๐ฌ๐ง
BS EN ISO 14837-1
๐ซ๐ท
NF EN ISO 14837-1
๐ฎ๐น
UNI EN ISO 14837-1
๐ช๐ธ
UNE EN ISO 14837-1
๐ณ๐ฑ
NEN EN ISO 14837-1
1,516
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17
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EUROFINS LABORATOIRE NORD
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DIN EN ISO 6888-1
DIN EN ISO 21528-2
DIN EN ISO 6888-2
DIN ISO 16649-2
NF V08-054
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DIN EN ISO 21528-1
NF V08-401
DIN ISO 16649-1
DIN EN ISO 6888-1
DIN EN ISO 21528-2
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NF X 43-269
NF X 43-050
ISO
ISO 16000-7
DIN EN ISO 1135-4
DIN EN 13744
IEC 62623: 2012
DIN EN 13746
Sound Attenuation EN ISO 4869-1:2018
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DIN ISO 17289
NF T 90-260
NF X 31-615 (Uniquement
DIN EN ISO 10523
DIN EN 27888
EXcorLab
Active
DIN EN ISO 1135-4
EN ISO 1135-5
DIN EN ISO 10993-1
DIN EN ISO 8637-1
DIN EN ISO 7199
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Eckert & Ziegler Nuclitec
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Aktivitรคt
20 Bq
> 20 Bq
Spezifische Aktivitรคt
radioaktiver Lรถsungen 20 Bqยทg
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Ecoricerche srl
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EPA 6020
DIN EN 12457-2
DIN EN 15634-1
EPA 3630
DIN EN 15408
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Efectis Nederland
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ISO 5660-1
DIN EN 1365-1
EN 13381-4
DIN EN 1634-1
EN 1365-2
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Efectis UK/Ireland
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EN 1364-3
DIN EN 1366-4
EN 1364-4
BS 476-21
BS 476-22
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Elektro Struร
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Gleichspannung 30 mV
/ Messgerรคte
> 0,33 V
> 3,3 V
> 33 V
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Elektro Wilhelm
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Taupunkttemperatur
fรผr Widerstands- ห 500 ยฐC
- Direktanzeigende Thermometer
Thermoelemente ห 500 ยฐC
Widerstands- -50 ยฐC
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(HSG 248) โ 2021
(PCM) based on HSG 248
based on BS EN 12457
DIN EN 1948-4
dbSNP rs1800562, rs1799945, rs1800730, r
(HSG 264, 2012)
HSG 227 (2004))
(HSG 248) โ 2021
(PCM) based on HSG 248
ISO 3651-2
ASTM A262 Methods A, C & E
ISO 7438
ASTM G28-2022 Method A
ASTM G48 Method A
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DIN EN 1303
DIN EN 12209
DIN EN 14846
BS 3621:2007+A2:2012
BS 8621:2007+A2:2012
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Element Metech KDK
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Elektrische Messgrรถรen
Gleichstrom- und Niederfrequenzmessgrรถรe
Railway brake โ magnetic track brakes (U
โ Gleichspannung
โ Gleichstromstรคrke
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Elster
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Durchfluss von Gasen 0,5 mยณ/h
Volumendurchfluss
> 4 mยณ/h
Railway overhead lines โ pantograph head
> 10 mยณ/h
+ 3 more
DIN EN ISO 14607
DIN EN 13687-2
DIN EN ISO 15912
ASTM E290-22
DIN EN ISO 19023
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Railway brake โ magnetic track brakes (U
Railway brakes โ conditions for homologa
โ Durchfluss von Flรผssigkeiten
Railway brakes โ estimation of braking f
โ Masse strรถmender Flรผssigkeiten
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Endress+Hauser SE+
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IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
IEC 61000-4-6: 2013
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Enertek International
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DIN EN 12279
DIN EN 12278
-22018G/A, rs182549
DIN EN 303-2
DIN EN 15502-2-1
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Enquin Environmental
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(HSG 248) โ 2021
(Section 2) based on HSG 248
(Section 4) based on HSG 248
staining based on HSG 248
(HSG 264, 2012)
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