ASTM C518 is a standard for the determination of steady-state heat transfer performance developed by the American Society for Testing and Materials. Its full name is "Standard Test Method for Steady-State Thermal Transmission Properties by the Heat Flow Meter Apparatus". It is mainly used to measure the thermal resistance and thermal conductivity of various insulation materials and structures. Applicable materials include, but are not limited to, building insulation materials (such as polystyrene foam, rock wool, fiberglass wool, etc.), industrial insulation materials, and some composite materials. This standard helps engineers and designers select appropriate insulation materials and optimize the design of insulation systems to achieve energy savings and improve energy efficiency.

Landy's pure aluminum single-bubble insulation material has withstood the rigorous tests of this standard under the professional inspection of SGS. During the testing, the laboratory simulated environmental conditions close to actual use. The ambient temperature was controlled at (23±2)°C, and the relative humidity was maintained at (50±10)%. Testing the insulation material under such conditions makes the data more reliable and practical. The thermal conductivity of the pure aluminum bubble insulation material is only 0.0363 W/m·K, and the thermal resistance value reaches 0.0925 m2·K/W. This means that it can effectively prevent heat transfer. In scenarios where insulation is required, such as in buildings and industrial equipment, it can significantly reduce heat loss and improve energy utilization efficiency. For example, in summer, it can block the heat from the outside from entering the room, reducing the energy consumption of air conditioners. In winter, it can prevent the heat inside the room from escaping, keeping the room warm.

Landy's double-sided pure aluminum bubble insulation material has obtained the ASTM certification. This is not only a high recognition of its product quality but also provides strong support in the market competition. This bubble insulation material can be widely applied in fields such as construction and cold chain transportation, providing efficient insulation solutions for customers in different industries. It helps various industries achieve the goals of energy conservation and emission reduction, improve product performance, and promotes the sustainable development of related industries.