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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
Design density	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

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