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Glass wool is a thermal insulation material with excellent performance. To ensure its quality, strict testing must be carried out before use.
Main testing items include: density, thermal conductivity, thickness, tensile strength, moisture content, combustion performance and fiber diameter.
Testing method: measure the density and thickness with a ruler and balance, test the thermal conductivity with a thermal conductivity tester, test the tensile strength with a universal testing machine, and test the combustion performance according to the relevant standard.
Quality requirements: the thermal conductivity of glass wool at 25°C should not be higher than 0.040 W/(m·K), the density is generally 10-48 kg/m³, and the combustion performance should meet the non-combustible or flame-retardant grade requirements.
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