Specializing in the detection of precious metal raw materials, products and coatings, jewelry and jade identification and diamond grading, it is the only designated inspection institution for platinum trading in Shanghai Gold Exchange at present, and it is also one of the three designated inspection institutions for gold trading, with a legal third-party impartial status. Provide quality inspection for precious metal products of Olympic Games.
NGSTC undertakes quality supervision, spot check, arbitration inspection and entrusted inspection of precious metals, jewelry and jade products nationwide, and specializes in the detection of precious metal raw materials, products and coatings, jewelry and jade identification and diamond grading. NGSTC has a high-level professional testing team, including senior engineers engaged in precious metal testing and national registered jewelry and jade quality inspectors engaged in jewelry and jade identification and diamond grading. It has jewelry detection and diamond grading equipment, as well as large-scale instruments such as trace scan micro-plasma emission spectrometer, full-spectrum direct-reading plasma emission spectrometer, quan-x high-performance X-ray fluorescence spectrometer, nicolet infrared spectrometer, diamond proportioning instrument and diamond precious metal engraving machine.
National Gold and Silver Products Quality Supervision and Inspection Center (Nanjing) was established on 1995 relying on Nanjing Product Quality Supervision and Inspection Institute. It is a national third-party quality and safety testing machine center for gold, silver and jewelry products, and the only national testing institution for precious metals and jewelry products in Jiangsu Province. It is the only designated inspection institution for platinum trading in Shanghai Gold Exchange, gold trading.
One of the designated inspection agencies; It is the director of the Precious Metal Jewelry Standardization Technical Committee of the National Quality Supervision Key Product Inspection Method Standardization Technical Committee, the initiator of the technical alliance of the National Precious Metal and Jewelry Quality Inspection Center, the unit of the National Jewelry Standardization Technical Committee (TC256), the unit of the National Gold Standardization Technical Committee (TC 379), and the appraisal and evaluation unit of the Chinese jewelry and jade jewelry industry.