In order to ensure that textiles and clothing are harmless to human health, China's compulsory national standard GB18401-2010 "National General Safety Technical Specification for Textile Products" puts forward the basic safety technical requirements for textiles and clothing, and divides the technical requirements into three categories according to the strictness of the indicators, namely safety technical category, of which Class A is the most stringent. In addition, the standard also stipulates that infant clothing must reach Class A, clothing in direct contact with the skin must reach Class B at least, and clothing in indirect contact must reach Class C at least.

It can be understood that

Category A (baby products)

Category B (products in direct contact with skin)

Class C (products not in direct contact with skin)