Conformity certification: Conformity certification is a comprehensive quality certification of all the properties of goods according to the requirements of commodity standards, which is generally voluntary certification. Products subject to conformity certification must meet the requirements of national standards or industry standards stipulated in the Standardization Law.
Extended data product quality certification is also called product certification, and internationally it is called conformity certification. According to 199 1 "Regulations on the Administration of Product Quality Certification in People's Republic of China (PRC)", product quality certification is an activity in which certification bodies confirm according to product standards and corresponding technical requirements, and issue certification certificates and certification marks to prove that products meet corresponding standards and corresponding technical requirements.
ISO is defined as an activity in which a product or service conforms to a specific standard or other technical specification formulated by a completely trusted third party. Product certification is divided into compulsory certification and voluntary certification.
References:
Baidu encyclopedia-product quality certification