Which fabric ingredients belong to the B class? Which fabric ingredients belong to the C class?
Not the fabric classification.Clothing fabrics are divided into: A. cotton, B. linen fabric, C. wool fabric, D. silk fabric, E. chemical fiber fabric, F. knitwear fabric, G. fur and leather fabric
This is a clear regulation of formaldehyde content of clothing:A for infants and young children's clothing, its formaldehyde content shall not exceed 20 mg per kilogram,B class for direct contact with skin clothing, its formaldehyde content shall not be greater than 75 mg per kilogram,C class for non direct contact skin type clothing, its formaldehyde content shall not be greater than 300 mg per kilogram
