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Table 1 Performance Requirements for Physical Properties of Type 1 CFI
Property Unit Requirement
Thermal resistivity m·K/W Minimum 18.5
Open flammability W/cm2 Minimum 0.12
Open flammability permanency W/cm2 Minimum 0.12
Smoulder resistance % Maximum 15
Moisture vapour sorption % Maximum 20
Corrosiveness No perforations
Fungi resistance Fungal growth shall not exceed that of the comparative item.
Separation of chemicals % Maximum 1.5
Design density kg/m3 As determined