What are the well-known third-party testing institutions?

The ranking of the third-party testing institutions is: Spectrum Technology, Intertek, China Inspection and Certification Group, Puni Testing, Shenzhen Institute of Metrology and Quality Testing, Bureau Veritas International Testing Group, Huace Testing, Rheinland, Swiss Notary Public, and China Guangzhou Analysis and Testing Center.

Tian Xiang Group is the world's leading quality and safety service company, an international authoritative testing institution and a third-party notary office. Tian Xiang enjoys a worldwide reputation for its recognized professionalism, quality and integrity. Relying on the global service network covering more than 100 countries, Intertek has become a trusted partner of global customers by providing the industry's highest standards of fair and accurate high-quality services and innovative solutions.

Huace is called Huace Metrology Technology Co., Ltd., which is a wholly-owned subsidiary of Huace Testing and Certification Group Co., Ltd., and is an authoritative organization specializing in dimension measurement, metrology calibration, technical training, instrument maintenance and other services. Huace Testing has established a business service network consisting of more than 30 branches in China, with dozens of laboratories covering chemistry, biology, physics, machinery, electromagnetism and other fields.

Third-party inspection agencies, also known as fair inspection, as fair and authoritative non-parties, conduct commodity inspection activities according to relevant laws, standards or contracts.