GB/T 35438-2017

This standard specifies the technical requirements, dimensions, materials, sealing performance, and testing methods for quick-disconnect couplings used to transfer gases and liquids within science experiment racks on China's space station. It is applied in the design, manufacturing, and verification of fluid connectors that must operate reliably under microgravity conditions, ensuring leak-free connections during crewed space missions and automated experiments. The standard is critical for aerospace engineering and payload integration, particularly for life support, thermal control, and fluid-based scientific research systems aboard the space station.