The reporter learned today that a proposal to revise the international standard “General Requirements for Producers' Competence for Standard Substances/Standard Samples” initiated by Chinese experts has been approved by the International Organization for Standardization. This is a key step in the international standardization of conformity assessment. It marks China's historic breakthrough in the field of international standardization of standard substances. As an important basis for laboratory measurements and quality control, standard substances/standard samples are a key foundation for ensuring the accuracy, consistency and traceability of measurement results. They are widely used in environmental monitoring, food safety, health care, industrial production and scientific research. They are not only a concentrated expression of the level of measurement technology, but also an important indicator of a country's measurement capability and international competitiveness.

The reporter learned today that a proposal to revise the international standard “General Requirements for Producers' Competence for Standard Substances/Standard Samples” initiated by Chinese experts has been approved by the International Organization for Standardization. This is a key step in the international standardization of conformity assessment. It marks China's historic breakthrough in the field of international standardization of standard substances. As an important basis for laboratory measurements and quality control, standard substances/standard samples are a key foundation for ensuring the accuracy, consistency and traceability of measurement results. They are widely used in environmental monitoring, food safety, health care, industrial production and scientific research. They are not only a concentrated expression of the level of measurement technology, but also an important indicator of a country's measurement capability and international competitiveness.