Zhongxin Finance, March 10th, according to the State Administration for Market Regulation, according to the relevant regulations of the Administrative License Law of the People's Republic of China, the Metrology Law of the People's Republic of China, the Detailed Rules for the Implementation of the Metrology Law of the People's Republic of China, and the Measures for the Administration of Reference Substances, the market In 2021, the State Administration of Supervision newly approved 345 national primary standard materials and 1,774 national secondary standard materials.

  The primary standard materials include the standard material for the analysis of manganese ore (I), the standard material for the analysis of soil (Mohe, Heilongjiang), the standard material for the analysis of rice flour, etc.; Oxadiazon solution standard substance, mercury single element solution standard substance, etc.

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Image source: State Administration for Market Regulation