The reporter learned today that the General Administration of Market Regulation issued a notice to publicly solicit comments from the public on the mandatory national standard “International System of Units and its Application”. The deadline for feedback is September 13. This mandatory national standard is a basic technical document of China's legal unit of measurement system. It is directly related to the consistency of measurement units used in textbooks, publications, product labels, inspection reports, trade documents, etc., and is applicable to all situations where measurement units are used in the national economy, science and technology, industrial production, culture and education, etc. This revision is a major revision of China's basic and mandatory national standards in the field of quantities and units since the publication and implementation of the “International System of Units and Its Application” for more than 30 years. The revised draft closely follows the resolution of the International Conference on Metrology and the update of international standards. The core changes include: clarifying that the international system of units is based on 7 basic units using new physical constants, including “second, meter, kilogram, ampere, kelvin, mol, and candela”; abolishing the classification of “auxiliary units” to include radians and sphericity in the derived units of the international system of units with specific names; and increasing the total number of “ten, hundred, and thousand” from 20 to 24, respectively, and expanding “soft [that], kun [it]” downward Coto]”; combine astronomical units, Dalton, and Chennai Petri, decibels, etc. are included in China's legal unit of measurement tables used in conjunction with SI, etc.

The reporter learned today that the General Administration of Market Regulation issued a notice to publicly solicit comments from the public on the mandatory national standard “International System of Units and its Application”. The deadline for feedback is September 13. This mandatory national standard is a basic technical document of China's legal unit of measurement system. It is directly related to the consistency of measurement units used in textbooks, publications, product labels, inspection reports, trade documents, etc., and is applicable to all situations where measurement units are used in the national economy, science and technology, industrial production, culture and education, etc. This revision is a major revision of China's basic and mandatory national standards in the field of quantities and units since the publication and implementation of the “International System of Units and Its Application” for more than 30 years. The revised draft closely follows the resolution of the International Conference on Metrology and the update of international standards. The core changes include: clarifying that the international system of units is based on 7 basic units using new physical constants, including “second, meter, kilogram, ampere, kelvin, mol, and candela”; abolishing the classification of “auxiliary units” to include radians and sphericity in the derived units of the international system of units with specific names; and increasing the total number of “ten, hundred, and thousand” from 20 to 24, respectively, and expanding “soft [that], kun [it]” downward Coto]”; combine astronomical units, Dalton, and Chennai Petri, decibels, etc. are included in China's legal unit of measurement tables used in conjunction with SI, etc.