5205.14 - Exceeding 52 nm but not exceeding 80 nm:

This HTS category, 5205.14, specifically covers single cotton yarns spun from uncombed fibers. The defining characteristic of yarns within this classification is their fineness, measured in terms of "nm" (number of metric count). These yarns must contain 85 percent or more by weight of cotton and are not intended for retail sale. This category applies to yarns where the fineness falls within a precise range, specifically exceeding 52 nanometers but not exceeding 80 nanometers.

To differentiate 5205.14 from its sibling categories, consider the fineness of the yarn. Sub-categories like 5205.11, 5205.12, and 5205.13 cover yarns that are finer (i.e., have a lower nm value, indicating a higher number of yards per pound), while 5205.15 classifies yarns that are coarser (i.e., have a higher nm value, indicating fewer yards per pound). Therefore, 5205.14 is precisely situated in the mid-range of fineness for single cotton yarns under this heading.

Within 5205.14, further distinctions are made based on the treatment and nature of the unbleached yarn. The subcategories 5205.14.10.00 and 5205.14.20.00 serve to differentiate between unbleached yarn that has undergone mercerization (a process to improve luster and strength) and all other types of unbleached yarn within this specific fineness range. This allows for more granular classification based on processing.