1: Address:No. 1, Liu Yang North Road, Yubei District, Chongqing
2:? Chongqing Institute of Metrology and Quality Inspection is a national legal metrological verification, quality inspection, calibration and testing research institution established by the Chongqing Municipal Government, and it is a social non-profit institution at the deputy bureau level. It has independent legal status and third-party impartiality. The quality supervision, inspection and research center of jewellery, jade and precious metals is the only national certification and accreditation committee in Chongqing? CNAS (CNAS) is a legal jewelry and precious metal testing institution, and it is also the only judicial authentication institution for jewelry and precious metals in Chongqing.
3. Detection scope: jewelry detection; Diamond 4C classification; Emerald grading; Detection of precious metal jewelry (gold, silver, platinum, palladium) and detection of harmful elements; Gold and silver coating detection; Quality; Identification; Process quality, etc.
4. Customer:
1), to undertake supervision, sampling inspection, arbitration inspection and entrusted inspection by government functional departments such as quality supervision, industry and commerce, public security, justice and customs.
2) Provide batch entrusted inspection service for jewelry enterprises.
3) Provide entrusted inspection service for consumers.
4) Provide consultation and popularization services of jewelry knowledge for all sectors of society.