The GB 13690-2009 standard establishes general principles for the classification and risk disclosure of chemicals, in line with the requirements of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). The standard applies to the hazard labeling of chemical production and consumer goods to ensure the safe use and management of chemicals. By clarifying classification and disclosure requirements, the standard helps to improve the safety and transparency of chemicals and reduce potential hazards.