Technical parameters of rock wool
Inspection project | Standard requirements | Determination value | |
Appearance | Smooth surface, no wounds, stains, breakage | Smooth surface, no scar, stain, breakage | |
Size | Length mm | 1200+15 -3 | 1203 |
Width mm | 600 | 600 | |
Thickness mm | 50+5 -3 | 51 | |
Density kg/m3 | ------ | 180 | |
Slag ball content % （particle size is greater than 0.25 mm） | ≤10 | 3.8 | |
combustion performance | A级 | A级 | |
Average diameter of fiber μm | ≤7.0 | 4.3 | |
Thermal conductivity W/(m ·K) (average temperature25℃) | ≤0.040 | 0.039 | |
Hydrophobicity % | ≥98.0 | 99.9 | |
Tensile strength Kpa | ≥7.5 | 15.2 | |
Compression strength Kpa （10%deformation） | ≥40 | 77.6 | |
Acidity coefficient | ≥1.8（optimal acidity true） | 2.0 | |