1. All procedures that may generate toxic or irritating gases must be carried out in a fume hood. Examples of such gases include carbon monoxide, hydrogen sulfide, hydrogen fluoride, hydrogen chloride, carbon dioxide, chlorine, iodine, sulfur dioxide, manganese oxide, and nitrogen dioxide. Using a fume hood helps prevent inhalation and protects both the operator and the environment.
2. When handling toxic substances, it is essential to wear appropriate personal protective equipment (PPE), such as masks, face shields, and gloves. Always wash your hands thoroughly after completing the experiment. Eating, drinking, and smoking are strictly prohibited in the laboratory during any testing activities to avoid accidental exposure.
3. Any solution that has come into contact with toxic substances must be disposed of safely by trained personnel according to local regulations. Before disposal, ensure that the waste meets all required discharge standards. Afterward, clean all instruments and work areas to maintain a safe and hygienic environment.
4. If workers have cuts, wounds, or skin abrasions on their hands, face, or body, they should not perform any toxic-related tasks, especially those involving hydrides. These conditions increase the risk of absorption through open wounds, which can lead to serious health consequences.
5. Toxic liquids, industrial wastewater, or other corrosive substances must never be aspirated by mouth. Instead, use proper suction devices or pipettes to handle these materials. This prevents direct contact and reduces the risk of poisoning or chemical burns.
6. Never taste or smell unknown substances directly. If you need to identify a substance’s odor, use the "wafting" technique: gently move your hand over the container to bring the vapor toward your nose. Never hold food, drinks, or any personal items in the lab, as this increases the risk of contamination and exposure.
These safety guidelines are crucial for maintaining a secure working environment and protecting the health of all personnel involved in chemical experiments. For more information, refer to official safety protocols and consult with your supervisor or safety officer.
China Labor Insurance Network
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