我国新批准发布891项国家标准物质

Core Insights - The National Market Regulation Administration reported that in the first three quarters, China approved 891 new national standard substances, representing a year-on-year increase of 75.7% [1] - Among these, 48 are national first-level standard substances, accounting for 5.4% of the total, with a year-on-year growth of 23.1% [1] - The remaining 843 are national second-level standard substances, making up 94.6% of the total, with a significant year-on-year increase of 80.1% [1] - Standard substances are essential for conducting chemical and biological testing activities and are a key element in the construction of national measurement capabilities [1] - As of now, the National Market Regulation Administration has cumulatively approved 19,349 national standard substances [1]