GB/T 39969-2021
ActiveTest method of ventilation and rain resistance performance for ventilation louvers of building
建筑用通风百叶窗通风及防雨性能检测方法
Application Summary AI generated
This standard specifies the test methods for evaluating the ventilation efficiency and rain resistance of building ventilation louvers. It is applied in the construction industry for product quality inspection and performance verification of louvers used in building facades, curtain walls, and mechanical ventilation openings. The standard ensures that louvers meet functional requirements for airflow while preventing water ingress under simulated wind-driven rain conditions.
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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.