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Definition and Determination Principle of Hazardous Chemicals
Posted Date:2021/12/15
Definition and determination principle of hazardous chemicals
Definition: highly toxic chemicals and other chemicals that are poisonous, corrosive, explosive, combustible, and combustion-supporting, and are harmful to humans, facilities, and the environment.
Determination principle: The types of hazardous chemicals are determined from the following categories of hazards and hazard characteristics in accordance with the national standards for chemical classification and labeling:
1. Physical hazard
Explosives: unstable explosives, 1.1, 1.2, 1.3, 1.4.
Flammable gas: category 1, category 2, chemically unstable gas category A, chemically unstable gas category B.
Aerosol (also known as aerosol): Category 1.
Oxidizing gas: Category 1.
Pressurized gas: compressed gas, liquefied gas, refrigerated liquefied gas, dissolved gas.
Flammable liquid: category 1, category 2, category 3.
Flammable solids: category 1, category 2.
Self-reactive substances and mixtures: Type A, Type B, Type C, Type D, Type E.
Spontaneous combustion liquid: Category 1.
Pyrophoric solid: Category 1.
Self-heating substances and mixtures: category 1, category 2.
Substances and mixtures that emit flammable gases in contact with water: Category 1, Category 2, Category 3.
Oxidizing liquid: category 1, category 2, category 3.
Oxidizing solids: category 1, category 2, category 3.
Organic peroxides: Type A, Type B, Type C, Type D, Type E, Type F.
Metal corrosives: Category 1.
2. Health hazard
Acute toxicity: Category 1, Category 2, Category 3.
Skin corrosion/irritation: Category 1A, Category 1B, Category 1C, Category 2.
Serious eye damage/eye irritation: Category 1, Category 2A, Category 2B.
Respiratory tract or skin sensitization: respiratory sensitizer 1A, respiratory sensitizer 1B, skin sensitizer 1A, skin sensitizer 1B.
Germ cell mutagenicity: Category 1A, Category 1B, Category 2.
Carcinogenicity: Category 1A, Category 1B, Category 2.
Reproductive toxicity: category 1A, category 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.
Aspiration hazard: Category 1.
3. Environmental hazard
Harm to the aquatic environment-acute hazard: category 1, category 2;
Hazardous to the aquatic environment-long-term hazards: category 1, category 2, category 3.
Harm to the ozone layer: Category 1.
According to the principle of the definition of dangerous goods, it can be seen that not all GHS classifications are defined as dangerous goods by the "China Hazardous Chemicals List 2015". The following table lists the classifications that are not in the scope of the definition of dangerous goods:
|
Type of danger
|
Hazard category
|
Code
|
Health hazard and hazard statement
|
|
Aerosol
|
Category 2
Category 3
|
H223
H229
|
Flammable aerosol.
Pressure vessel: may burst if heated.
|
|
Flammable liquids
|
Category 4
|
H227
|
Flammable liquid.
|
|
Acute toxicity
|
(Oral) Category 5
|
H303
|
May be harmful if swallowed.
|
|
(Transdermal) Category 5
|
H313
|
May be harmful in contact with skin.
|
|
(Inhalation) Category 5
|
H333
|
May be harmful if inhaled.
|
|
Serious eye damage/eye irritation
|
Category 2B
|
H320
|
Causes serious eye irritation.
|
|
Skin corrosion irritation
|
Category 3
|
H316
|
Causes mild skin irritation.
|
|
Inhalation hazard
|
Category 2
|
H305
|
May be harmful if swallowed and enters the respiratory tract.
|
|
Hazardous to the aquatic environment-acute hazard
|
Category 3
|
H402
|
Harmful to aquatic life.
|
|
Hazardous to the aquatic environment-acute hazard
|
Category 4
|
H413
|
May cause long lasting harmful effects to aquatic organisms.
|