According to the "Regulations on the Safety Management of Hazardous Chemicals (2013 Revision)", hazardous chemicals refer to highly toxic chemicals and other chemicals that have properties such as toxicity, corrosion, explosion, combustion, and combustion-supporting, and pose hazards to human health, facilities, and the environment.

The "Catalogue of Hazardous Chemicals (2015)" stipulates the principles for determining hazardous chemicals: The types of hazardous chemicals are determined based on the national standards for chemical classification and labeling, from the following categories of hazards and hazardous characteristics:

Physical hazards

• Explosives: Unstable explosives, 1.1, 1.2, 1.3, 1.4.
• Flammable gases: Category 1, Category 2, Chemically unstable gases Category A, Chemically unstable gases Category B.
• Aerosols: Category 1.
• Oxidizing gases: Category 1.
• Pressurized gases: Compressed gases, liquefied gases, refrigerated liquefied gases, dissolved gases.
• Flammable liquids: Category 1, Category 2, Category 3.
• Flammable solids: Category 1, Category 2.
• Self-reactive substances and mixtures: Type A, B, C, D, E.
• Pyrophoric liquids: Category 1.
• Pyrophoric solids: Category 1.
• Self-heating substances and mixtures: Category 1, Category 2.
• Substances and mixtures which, in contact with water, emit flammable gases: Category 1, Category 2, Category 3.
• Oxidizing liquids: Category 1, Category 2, Category 3.
• Oxidizing solids: Category 1, Category 2, Category 3.
• Organic peroxides: Type A, B, C, D, E, F.
• Metal corrosives: Category 1.

Health hazards

• Acute toxicity: Category 1, Category 2, Category 3.
• Skin corrosion/irritation: Category 1A, 1B, 1C, Category 2.
• Serious eye damage/eye irritation: Category 1, Category 2A, Category 2B.
• Respiratory or skin sensitization: Respiratory sensitizer 1A, 1B, Skin sensitizer 1A, 1B.
• Germ cell mutagenicity: Category 1A, 1B, Category 2.
• Carcinogenicity: Category 1A, 1B, Category 2.
• Reproductive toxicity: Category 1A, 1B, Category 2, Additional category.
• Specific target organ toxicity - single exposure: Category 1, Category 2, Category 3.
• Specific target organ toxicity - repeated exposure: Category 1, Category 2.
• Inhalation hazard: Category 1.

Environmental hazards

• Hazardous to the aquatic environment - acute hazard: Category 1, Category 2;
• Hazardous to the aquatic environment - long-term hazard: Category 1, Category 2, Category 3.
• Hazardous to the ozone layer: Category 1.

Attachments

1. Catalogue of Hazardous Chemicals (2015)
2. Announcement on the Adjustment of the Catalogue of Hazardous Chemicals (2015)
3. Regulations on the Safety Management of Hazardous Chemicals (2013 Revision)

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