Annex - Guidelines on a Simplified Calculation for the Total Amount of Combustible Materials per Unit Area in Accommodation and Service Spaces
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.1003 – Guidelines on a Simplified Calculation for the Total Amount of Combustible Materials per Unit Area in Accommodation and Service Spaces – (Adopted on 8 June 2001) - Annex - Guidelines on a Simplified Calculation for the Total Amount of Combustible Materials per Unit Area in Accommodation and Service Spaces

Annex - Guidelines on a Simplified Calculation for the Total Amount of Combustible Materials per Unit Area in Accommodation and Service Spaces

  1 Application

These Guidelines are intended to be used by Administrations to calculate the maximum fire load on board ships. These Guidelines are not intended to support alternative design and arrangements process specified in SOLAS regulation II-2/17 footnote.

  2 Formula for calculating the total mass of combustible materials

  2.1 In accommodation spaces, service spaces and control stations of all types of ships, the total mass of combustible materials of each enclosed space should be calculated based on the following formula:

TCMPA = MCMBST/A
where:
TCMPA = is the total mass of combustible materials per unit area of the space (kg/m2)
M CMBST = is the total mass of combustible materials of the space (kg); and
A = is the floor area of the space (m2).

  2.2 The following combustible materials should be included in the calculation required by paragraph 2.1:

  • .1 construction materials such as cable insulation, plastic pipes, veneers and combustible materials permitted to be used under the relevant regulations of SOLAS chapter II-2; and

  • .2 outfitting which may be installed during the construction or provided by the ship's owner or crew, including furniture, bedding components and electrical appliances.

  2.3 Maximum values for the total mass of combustible materials per unit area TCMPA are provided in the table below. Space categories should be classified in accordance with SOLAS regulation II-2/9 footnote.

Type of space Passenger ships carrying more than 36 passengers Passenger ships carrying not more than 36 passengers Cargo ships
Stairways, corridors 5 kg/m2 5 kg/m2 5 kg/m2
Control stations 5 kg/m2 5 kg/m2 5 kg/m2
Accommodation spaces Minor fire risk15 kg/m2 35 kg/m2 35 kg/m2
Moderate fire risk35 kg/m2
Greater fire risk35 kg/m2
Service spaces surrounded by "A" class divisions 45 kg/m2 45 kg/m2 45 kg/m2
Parent topic: MSC/Circular.1003 – Guidelines on a Simplified Calculation for the Total Amount of Combustible Materials per Unit Area in Accommodation and Service Spaces – (Adopted on 8 June 2001)
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