Building materials. Method of thermal conductivity determination

This document establishes a standardized methodology for determining thermal conductivity and thermal resistance of building materials and products. Developed by the national standards authority of Russia, it provides a uniform procedure to ensure consistency in testing across the industry. The approach covers the necessary equipment, sample preparation, and experimental conditions required to obtain reliable data. By defining specific measurement techniques, the document supports the evaluation of thermal performance characteristics essential for construction and engineering applications. It specifies the calculation methods to derive accurate values from experimental readings, facilitating comparison and verification of material properties. The framework is designed to be applicable to various types of building components, ensuring that results are reproducible and comparable regardless of the testing laboratory. Adherence to these procedures allows for the consistent assessment of insulation effectiveness and heat transfer properties, which are critical for energy efficiency and safety in building design. The methodology contributes to technical uniformity in the assessment of thermal properties within the relevant sector.