Chemicals are mixtures of pure substances and various elements, whether natural or man-made.

According to the statistics of American Chemical Abstracts, there are as many as 7 million kinds of chemicals in the world, of which 6,543,800 kinds have been classified as commodities, more than 70,000 kinds are frequently used, and 6,543,800 kinds of new chemicals appear in the world every year.

This standard specifies the contents and writing requirements of chemical safety labels.

This standard is applicable to the production of safety labels for explosives, compressed gases and liquefied gases, flammable liquids, flammable solids, spontaneous combustion articles and flammable articles when wet, oxidants and organic peroxides, poisons and corrosives, and other chemicals harmful to human body and environment.

The clauses contained in the following standards constitute the clauses of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest version of the following standards.

Various daily chemicals are widely used in families. Such as pesticides, disinfectants, detergents and dry cleaners, are effective, but they also release toxic gases. A small amount of highly toxic aniline is used to produce household chemicals, such as paints, pesticides and fungicides. CCl4, which is widely used as solvent, fire extinguishing agent and dry cleaning agent, CH3CCl3, which is used as degreasing agent, and CHF2Cl, which is used as refrigerant and foaming agent, are the main sources of chlorinated hydrocarbon pollution.

In addition to outdoor air pollutants can enter the room through air circulation, indoor building decoration materials, kitchen cooking, cosmetics, daily chemicals and chemicals, photocopiers, printers, radioactive pollutants, air fresheners, pesticides, smoking, food additives, pesticides and fertilizers used in rural areas are all important indoor chemical pollutants. People have identified more than 300 kinds of volatile chemicals from indoor air. Medical research shows that the above pollution can cause respiratory tract, cardiovascular diseases and cancer.