Regulation 7-3 - Permeability
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Statutory Documents - IMO Publications and Documents - International Conventions - SOLAS - International Convention for the Safety of Life at Sea - Chapter II-1 - Construction - Structure, subdivision and stability, machinery and electrical installations - Part B-1 - Stability - Regulation 7-3 - Permeability

Regulation 7-3 - Permeability

  1 For the purpose of the subdivision and damage stability calculations of the regulations, the permeability of each general compartment or part of a compartment shall be as follows:

Spaces Permeability
Appropriated to stores 0.60
Occupied by accommodation 0.95
Occupied by machinery 0.85
Void spaces 0.95
Intended for liquids 0 or 0.95footnote

  2 For the purpose of the subdivision and damage stability calculations of the regulations, the permeability of each cargo compartment or part of a compartment shall be as follows:

Spaces Permeability at draught ds Permeability at draught dp Permeability at draught dl
Dry cargo spaces 0.70 0.80 0.95
Container spaces 0.70 0.80 0.95
Ro-ro spaces 0.90 0.90 0.95
Cargo liquids 0.70 0.80 0.95

  3 Other figures for permeability may be used if substantiated by calculations.

Parent topic: Part B-1 - Stability
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