GB/T 34005-2017 in English

This standard provides a method for determining the water vapor transmission properties of tubular insulation products. It outlines the procedures, equipment, and conditions necessary to conduct the test accurately. The method is designed to measure the ability of the material to resist the passage of water vapor, which is crucial for assessing its performance in various environmental conditions. The test involves subjecting the material to controlled humidity and temperature conditions to evaluate its behavior over time. The standard ensures consistency in testing procedures, allowing for reliable comparisons between different materials and products. It specifies the preparation of samples, the setup of the testing apparatus, and the calculation of results based on measured data. The information provided in this standard supports the evaluation of the material's suitability for specific applications.