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Table 1. Physical Property Requirements of Loose-Fill Mineral-Fibre Insulation (2009)
Test/Property Requirement
Design density ≤ the limiting design density (Type 5 only)
Thermal resistivity ( (m·k)W) ≥ 18.5/m
Surface - burning characteristics Flame-spread rating ≤ 25 Smoke developed classification ≤ 50
Smoulder resistance (%) Mean mass loss ≤ 5, mass loss of each specimen ≤ 10
Corrosiveness Specimen corrosion ≤ control specimen
Fungi resistance Growth ≤ comparative item
Table 2. Physical Property Requirements of Loose-Fill Mineral-Fibre Insulation (2014)
Test/Property Requirement
Design density pouring wool Equals design density for thickness
blowing wool Equals design density for thickness
Thermal resistivity ( (m·k)W) ≥ 18.5/m
Surface - burning characteristics Flame-spread rating ≤ 25 Smoke developed classification ≤ 50
Smoulder resistance (%) Mean mass loss ≤ 2 %, Individual mass loss ≤ 3% Smoulder zone shall not reach the specimen periphery
Corrosiveness Specimen corrosion ≤ control specimen
Fungi resistance Growth ≤ comparative item