Standards refer to technical requirements that need to be unified in agriculture, industry, service industry and social undertakings. Standards include national standards, industry standards, local standards, group standards and enterprise standards. National standards are divided into mandatory standards and recommended standards, while industry standards and local standards are recommended standards. Mandatory standards must be implemented. National standards refer to standards adopted and published by state institutions. National standards refer to standards adopted and published by state institutions. People's Republic of China (PRC) national standards: refer to standards that are of great significance to China's economic and technological development and must be unified nationwide. National standards shall be formulated for technical requirements that need to be unified nationwide. China's national standards are planned, drafted, approved, numbered and issued by the administrative department of standardization in the State Council. National standards are applicable throughout the country, and standards at other levels shall not conflict with national standards.
Legal basis:
Measures for the administration of mandatory national standards
Article 35 The serial number of a compulsory national standard consists of the code, serial number and year number of the compulsory national standard.
Article 51 Where a compulsory national standard involves a patent, it shall be implemented in accordance with the provisions on patent management in the national standard.
The formulation of mandatory national standards with reference to relevant international standards shall conform to the copyright policies of relevant international standardization organizations.