1, the purpose is different: GMP is a standard, its main purpose is to ensure that the production of drugs, food, medical devices, etc. compliance, safety, high quality, while the CNAS system is an assessment system, its main purpose is to assess and recognize the laboratory capacity.
2, the evaluation content is different: GMP mainly evaluates the aspects related to production and quality management, such as production process control, record and document management, process validation, staff training, etc., while the CNAS evaluation content is mainly to assess the laboratory's technical capabilities, including equipment, facilities, personnel quality, quality control, methodology, results and other aspects.