On November 27, 2019, Dr. Gao Jian, a unit expert, and Engineer Gao Yaxin from China Electronics Standardization Institute visited the laboratory center of Shenzhen Junhuiteng Technology Co., Ltd. Conduct technical capability verification and instrument performance evaluation for project T/CESA 1063-2019 "Determination of Four Phthalates in Electronic and Electrical Products - High Performance Liquid Chromatography Method". All technical personnel of Junhuiteng Technology participated in the relevant activities. The expert group is responsible for the instrument configuration and pre-processing process specified in T/CESA 1063-2019. All parameters have been systematically validated. And it was ultimately determined that the repeatability, separation degree, and detection limit were all better than the relevant levels. The project has passed the acceptance smoothly!