According to the relevant information of Alibaba 1688, the national standards for extracting underwear from Taxus chinensis are as follows:
1. safety indicators: the safety indicators of underwear extracted from Taxus chinensis must meet the national mandatory standards, such as no odor, no formaldehyde, no fluorescent agent, etc.
2. Fiber content: The fiber content of Taxus extract underwear should meet the national mandatory standards, such as 100% pure cotton or 95% cotton +5% spandex.
3. Color fastness: The color fastness of Taxus extract underwear should meet the national mandatory standards, such as color fastness to washing and rubbing.
4. Shrinkage rate: The shrinkage rate of underwear extracted from Taxus chinensis should meet the national mandatory standards, such as the requirement that the dimensional change after washing should not exceed 5%.
5. Quality grade: The quality grade of underpants extracted from Taxus chinensis should meet the national mandatory standards, such as superior products, first-class products and qualified products.
6. Environmental protection indicators: The environmental protection indicators of Taxus extract underwear should meet the national mandatory standards, such as the prohibition of azo dyes and heavy metal content.