Door leaves; Test of behaviour under humidity variations (successive uniform climates)

This document outlines a specific international procedure for evaluating the performance of door leaves when subjected to changes in humidity under conditions of constant climate. It establishes a standardized test method designed to assess how door assemblies respond to variations in moisture levels within a controlled environment. The approach ensures that manufacturers, inspectors, and regulatory bodies can utilize a uniform protocol for determining dimensional stability and operational functionality during exposure to fluctuating atmospheric humidity. By defining precise test conditions and measurement criteria, this framework enables consistent comparison of door products across different markets and manufacturers. The procedure focuses on identifying potential issues such as warping, swelling, or changes in friction characteristics that may occur as humidity levels shift. It serves as a technical reference for quality assurance processes, allowing stakeholders to verify that door units maintain their intended performance characteristics throughout their service life under specified environmental conditions.