4804.42.00 - Bleached uniformly throughout the mass and of which more than 95 percent by weight of the total fiber content consists of wood fibers obtained by a chemical process

This HTS category, 4804.42.00, classifies certain types of uncoated kraft paper and paperboard. Specifically, it covers products that are bleached uniformly throughout the mass and whose total fiber content is comprised of over 95% wood fibers obtained through a chemical process. These papers and paperboards fall within the subcategory of "Other kraft paper and paperboard weighing more than 150 g/m² but less than 225 g/m²."

Distinguishing this category from its siblings, 4804.41 pertains to unbleached kraft paper and paperboard within the same weight range. Therefore, the key differentiator for 4804.42.00 is the uniform bleaching of the entire mass and the high percentage of chemically derived wood fibers. The sibling category 4804.49.00.00, labeled as "Other," would encompass kraft paper and paperboard within the specified weight range that does not meet the bleaching and fiber content criteria of 4804.42.00.

Within this classification, two subcategories are further defined. The primary subdivision, 4804.42.00.10, is designated for base stock specifically intended for milk cartons and other beverage containers, indicating a functional application. The remaining material, classified under the general "Other" subdivision, encompasses all other kraft papers and paperboards meeting the bleached and fiber content criteria, but not intended for the specific packaging use of the first subdivision.