ASTM D1518 Standard Test Method for Thermal Resistance of Impact Systems Using Hot Plates

The ASTM D1518 standard covers the measurement of thermal resistance at steady state conditions, batting and batting/fabric systems and other materials within specified limits. It measures the heat transfer from a layer of the test material from a horizontal flat plate to a cool atmosphere at a hot, dry, constant temperature, and calculates the resistance of the material.

Measurements are made in still air conditions or with a horizontal flow of air above the sample. For practical purposes, this test method is limited to determinations on impact samples and layered batting / fabric assemblies with an internal thermal resistance of 0,1 to 1,5 K·m2/W and thicknesses not exceeding 50 mm.

The coefficients obtained are strictly valid only for the specific samples tested and the specified thermal and environmental conditions of each test. This test method gives the air gap to measure the temperature difference between the hot plate and the cold air, and the cold air temperature, with the specified air velocity, the values ​​valid for comparison under the same test conditions.

This test method also provides a method for determining the bulk density of material, insulation per unit thickness, and insulation per unit weight. Values ​​stated in SI units should be accepted as standard.

This standard does not claim to address safety concerns associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.

Our organization also provides testing services to businesses within the scope of the ASTM D1518 Standard Test Method for Thermal Resistance of Impact Systems Using Hot Plates, within the framework of laboratory testing services.