New products have been launched for substances that meet the national standard HJ1289-2023, including mixed standards of 15 ketones and 6 ethers in acetonitrile

The Ministry of Ecology and Environment recently approved the release of seven national ecological environment standards. This includes three gas related standards, namely "Determination of 65 volatile organic compounds in ambient air by tank sampling/gas chromatography-mass spectrometry" (HJ 759-2023), "Technical specifications for continuous monitoring of non methane total hydrocarbons in fixed pollution source exhaust gas" (HJ 1286-2023), and "Determination of blackness of fixed pollution source exhaust gas by Ringman telescope method" (HJ 1287-2023). All three standards will be implemented from August 1, 2023.