GB/T 44748.1-2024 "Sieving Test - Part 1: Method Using Wire Cloth Test Sieves and Metal Perforated Plate Test Sieves" specifies the general methods for dry and wet sieving using wire cloth test sieves and metal perforated plate test sieves. It covers sample preparation, selection of sieving equipment, operational procedures, and result calculation, while clarifying parameter settings such as sieving time, amplitude, and frequency. The standard also details the characterization of particle size distribution and rules for data rounding. It is applicable to the particle size classification and content determination of solid particulate materials, providing unified operational specifications for sieving tests in fields such as chemical engineering, metallurgy, and building materials, ensuring the accuracy and reproducibility of test results.