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
🇮🇹
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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17
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DIN EN ISO 11357-4
IEC 61037
DIN EN ISO 13850
DIN EN ISO 13855
ISO 14119
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DIN 58620: 2007-02
DIN 58621: 2011-10
DIN 58647-7: 1997-12
ID136
> 140
+ 3 more
IEC 61400-12
IEC 61400-12-1
IEC 61400-12-2
IEC 61400-12-3
IEC 61400-12-5
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Railway brakes — conditions for homologa
− Durchfluss von Flüssigkeiten
− Strömungsgeschwindigkeit von Gasen
− Widerstandsthermometer
− Temperatur-Transmitter, Datenlogger
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ADP
ASPI
TRAP
Amiodaron, Desethylamiodaron
Mycophenolsäure
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Devonport Royal Dockyard
Active
Specific Values 1
RF Power
RF Attenuation 10 MHz to 1 GHz
Other values -20 dBm to +20 dBm
Devonport Royal Dockyard
Active
BS 4206:1967 (superseded)
ISO 5173
ISO 7438
BS EN ISO 9606-2:2004
BS 131-5:1965
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Diagenom
Active
Chromosomensatz (angeboren)
Chromosomensatz (erworben)
Adrenogenitales Syndrom
Angelman-Syndrom (15q11-Region, UBE3A)
Mikrodeletionen; AZFa-c)
+ 3 more
Diagnos MVZ
Active
HbA1c
Differentialblutbild, maschinell
Retikulozyten, maschinell
Kleines Blutbild
Thrombozyten
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Diehl Metering
Active
Volumen strömender 0,0005 m
− Durchfluss von Flüssigkeiten
0,025 m
Wasserzähler und 0,001 m
Durchflusssensoren
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DIN EN ISO 7730
EPA 6020
DIN EN ISO 6888-1
ISO 14698-1
ISO 4832
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Absolutdruck p *
Vickers hardness test (ISO 6507)
Flüssigkeitsvolumen *
variablem Volumen
aufnehmern sowie
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Staber & Kollegen
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Blutbild groß
Thrombozyten
Urinsediment
Natrium
Kalium
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Aminosäureprofil
Guanidinoacetat
Kreatin
Hämoglobinprofil
Nitisinon (NTBC), Succinylaceton
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Druck *
Negativer und
positiver Überdruck -0,01 bar
Positiver Überdruck p e
> 0,015 bar
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Duravit
Active
*6095991, BAG3 [OMIM *6038831
(-13910T>C) rs4988235
- PiM rs6647, PiZ rs28929474, rs17580
DIN EN 997
DIN EN 13407
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VDE 0468-2-1
VDE 0468-2-2
VDE 0468-2-6
DIN EN IEC 60068-2-11
DIN EN IEC 60068-2-13
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optische 0 mm
Werkzeugeinstell- und
/ Messgeräte
verwendete Abkürzungen:
ECOSISTEM
Active
DIN EN ISO 9308-2
EPA 5035
DIN EN 14789
EPA 5030
DIN EN 14790
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DIN 40633-2
DIN 40633-3
DIN 53482
DIN 72551-100
DIN 72551-6
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and Appx. 3 of HSG 227 (2004))
in Appendix 5 of HSG 227 (2004)
guides HSG 264 (2012) and
(HSG 264, 2012)
EGIS INDUSTRIE ET PROCESS
Active
DIN EN 12469
NF S 90-351
BS EN ISO 14644-1:2015
ISO 14644-3
EICHROM AMIANTE
Active
NF X 43-269 - Annexe K
NF X 43-050 (parties utiles
NF X 46-032
NF X 43-269 – Annexe K
NF X 43-050
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