GB/T 14207-2024 specifies test methods for the water absorption of sandwich structures or cores, covering the determination of water absorption rate, water absorption per unit volume, and mass loss rate of water-soluble substances. It is applicable to the performance evaluation of various sandwich structures and core materials. The standard provides three test methods: immersion at room temperature, exposure to high temperature and high humidity, and saturation absorption at room temperature, clearly defining key processes such as specimen preparation, edge sealing, drying, and immersion. The tests require the use of a forced air drying oven, vacuum drying oven, constant temperature and humidity chamber, paired with instruments such as an electronic balance with a sensitivity of 0.001g, measuring tools with an accuracy of 0.01mm, and distilled water containers. These ensure precise control of temperature, humidity, and immersion time, providing a unified technical basis for the research, development, and quality control of related materials in fields such as aerospace and construction.
| Status | Active | ||
|---|---|---|---|
| CCS | Q23 | ICS | 83.120 |
| Release Date | 2024-04-25 00:00:00 | Implementation Date | 2024-11-01 00:00:00 |
