Cruise - Cabin Noise Limit
Cabin-noise limits per IMO Res. A.468(XII) - crew cabins ≤ 55 dB(A); passenger cabins ≤ 50 dB(A).
Limit
50dB(A)
Status
Exceeds IMO A.468 limit
Formula, assumptions, and limits
Revised MSC.337(91) sets 60 dB(A) for crew cabins (< 1 600 GT). ISO 2923 measurement methodology. HVAC duct attenuation + floating floors reduce structure-borne noise.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Time-averaged A-weighted sound pressure | dB(A) | ISO 2923 |