1、 Classification of hazardous chemicals
1. Class A: Liquid with a flash point<28 ℃;
2. Class B: Liquids and self igniting materials with a flash point of less than 60 ℃ and less than 28 ℃;
3. Class C: liquids and combustible solids with a flash point ≥ 60 ℃;
4. Class D: Difficult to burn items, such as self extinguishing plastics and their products;
5. Class E: Non combustible materials, such as steel, cement, etc.
2、 Classification of hazardous chemicals in the workplace:
1. Highly toxic chemicals that may cause death or serious injury after short-term exposure.
2. Highly toxic, can cause serious temporary or * * * * harm and carcinogenic chemicals after short-term exposure.
3. Poisoning, short-term exposure or high concentration exposure can cause temporary injury, and long-term exposure to chemicals can lead to more serious injury.
4. Low toxicity, short-term exposure, can cause irritation, but does not cause * * * harm, and long-term exposure can cause adverse effects of chemicals.
5. Non toxic, long-term exposure to chemicals that do not cause harm.
3、 Security measures:
1. Sealed packaging and stored in a dry and ventilated place.
2. Stay away from sparks and heat sources, and prevent direct sunlight.
3. Store separately from food chemicals, metal powders, etc.
4. Eating by mistake, drinking warm water, inducing vomiting.
