The GB/T 43819-2024 standard specifies the determination method of pesticide residues in leather. The standard applies to the quantitative analysis of pesticide residues in leather and its products, aiming to ensure the safety of leather products and avoid adverse effects of harmful substances on human health and the environment. The standard uses High performance liquid chroma-tography, HPLC (HPLC) and other analytical techniques, combined with appropriate sample pretreatment methods, such as extraction and purification steps, to improve the accuracy and sensitivity of the determination. The standard describes the test conditions, equipment requirements, Sample Handling procedures, and data calculation and reporting methods in detail to ensure the reliability and conformity of the measurement results. By implementing this standard, pesticide residues in leather products can be effectively monitored to ensure the health and safety of consumers.