cosmetics talcum cosmetic grade talc is very high quality requirements, there are strict requirements on the physical and chemical properties. For example, no sand particles in the ore, and has a sense of lubrication. The total number of bacteria is less than or equal to 500 /g, the mold is less than or equal to 100 /g, can not be detected such as Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and other pathogens. When the grinding fineness of talcum powder is greater than or equal to 75 m, the pass rate of 98%. The heavy metal content is less than or equal to 40 x 10-4 .