GB/T 6609.36 - 2009 is a standard for the determination of the flow time of aluminum oxide. It regulates the selection and preparation of samples to ensure that the test samples can reflect the actual characteristics of aluminum oxide. Detail the equipment for measuring the flow time, such as specific specifications funnel, etc., and clarify the operation process, including sample loading method, start and end timing nodes, etc. According to this standard, the flow time of aluminum oxide through a specific device can be accurately determined to understand its flowability. This is crucial for aluminum oxide production, processing and process design and quality control in various industrial applications, and helps enterprises optimize production processes.