GB/T 13477.20-2002
AbolishedTest method for building sealants--Part 20:Determination of staining
建筑密封材料试验方法 第20部分:污染性的测定
Application Summary AI generated
This standard specifies a test method for determining whether building sealants cause staining on porous substrates like concrete, stone, or mortar. It is applied in the construction industry to evaluate sealants used in joints, facades, and other building envelope applications, ensuring they do not discolor adjacent materials during service. The test is critical for quality control and material selection in projects where aesthetic appearance and long-term compatibility with porous surfaces are required.
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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.