GB/T 13477.21-2022
ActiveTest method for building sealants—Part 21：Determination of color change after laboratory accelerated weathering procedures
建筑密封材料试验方法 第21部分：人工加速气候老化后颜色变化的测定
Application Summary AI generated
This standard specifies a test method for measuring the color change of building sealants after exposure to laboratory accelerated weathering conditions, such as UV radiation, temperature, and moisture. It is applied in the construction industry to evaluate the color stability and durability of sealants used in building joints, facades, and glazing systems. Manufacturers and quality control labs use this method to ensure sealants maintain aesthetic and functional performance over time under simulated outdoor exposure.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.