Core Insights - The article highlights the significant growth in the establishment of national standard substances in China, with a total of 1,139 new items expected by 2025, representing a year-on-year increase of 61.8% [1] - The distribution of these standards shows that the environmental monitoring sector has the highest number of approved standard substances, totaling 406 items, which accounts for 35.6% of the total [1] - The medical and health sector has seen the most rapid growth, with a year-on-year increase of 231.9% [1] Summary by Categories National Standard Substances - By the end of 2025, China is projected to have a cumulative total of 19,441 national standard substances, providing strong support for high-quality economic and social development [1] - Among the new standards, there are 67 items classified as national first-level standard substances and 1,072 as second-level [1] Sector Distribution - The environmental monitoring field leads in the number of approved standard substances, while the food safety sector has the highest number of first-level standard substances, with 37 items, making up 55.2% of the total first-level standards [1] - A total of 226 standard substances related to food and agricultural product safety are expected to be published by 2025 [1] Application and Impact - The introduction of standard substances for the chikungunya virus addresses the lack of a unified "yardstick" for virus detection, while carbon measurement standards support environmental air quality monitoring [1] - Standard substances for food safety, such as those for mold and yeast plate counts, provide scientific basis for food safety testing [1][2]