Section 11 Textiles and textile articles 52 Cotton 52 06 Cotton yarn (other than sewing thread), containing less than 85% by weight of cotton, not put up for retail sale. 52 06 42 Measuring per single yarn less than 714.29 decitex but not less than 232.56 decitex.. Commodity Code Description 52 06 42 00 Measuring per single yarn less than 714.29 decitex but not less than 232.56 decitex..