Chemical safety labels are commonly found on chemical bottles. Those who rarely handle hazardous chemicals may not see them often, but anyone who has taken a chemistry class should remember the labels on those bottles. Today, we'll discuss some important points about chemical safety labels. This is common knowledge, but it can be life-saving in critical situations, so be sure to keep this information handy.

　　 The Role of Chemical Safety Labels

　　Generally, only hazardous chemicals require safety labels. Our country has strict regulations regarding these labels. Following the "Regulations on the Preparation of Chemical Safety Labels," they use a combination of graphics, text, and codes to indicate the hazards and safety precautions of chemicals, serving as a warning for operators.

　　 Chemical Safety Label Writing Standards

　　I. Label Content: The label should include the chemical identification, pictograms, signal words, hazard statements, precautionary statements, emergency contact number, supplier identification, and reference information.

　　1. Chemical Identification

　　Clearly indicate the chemical name or common name in both Chinese and English. The name should match the chemical safety data sheet and be prominently displayed at the top of the label.

　　Some information may be considered trade secrets and can be omitted, but the associated hazards must still be indicated.

　　For mixtures, classify according to the main components, indicating the chemical name, concentration, and concentration range. However, each classification group should not exceed five components.

　　2. Signal Words

　　Signal words are placed below the chemical identification, generally using the words "Warning," "Caution," or "Danger." The specific word used should follow the standard. If multiple hazards exist, and "Danger" is applicable, then "Warning" should not be used.

　　3. Hazard Statements

　　This section is written below the signal word and briefly summarizes the hazardous properties of the chemical. The order should be physical hazards, health hazards, and environmental hazards.

　　4. Precautionary Statements

　　Primarily for emergency first aid for operators. This should include preventive measures, emergency response, storage measures, and waste disposal. It should briefly note precautions and protective measures for the chemical; the content must be concise and focus on key points.

　　Next, there are pictograms, emergency contact numbers, supplier identification, and reference information, which I won't detail here. Please refer to the images below.

　　Note the order of pictograms: First, list them according to the primary and secondary hazards in GB12268. If not listed, follow the order of explosives, flammable gases, flammable aerosols, oxidizing gases, compressed gases, self-reactive substances and mixtures, pyrophoric substances, and organic peroxides as primary hazards.

　　Also, if a skull and crossbones symbol is used, an exclamation mark should not be used; if a corrosive symbol is used, an exclamation mark should not be used; if a respiratory sensitizer health hazard pictogram is used, an exclamation mark should not be used.

　　II. Simplification

　　If the container is less than or equal to 100 ml, the label can be simplified. Include chemical identification, pictograms, supplier name and contact information, signal words, hazard statements, emergency contact number, and reference information.

　　III. Applying the Label

　　The label must be securely affixed to prevent it from falling off, and the printing must be durable. Chemical safety labels should be applied before the product leaves the factory. If the packaging is changed, reapply the label. The label should only be removed when all hazards have been eliminated.