|The merchandise covered by these orders is all purified
carboxymethylcellulose (CMC), sometimes also referred to as purified
sodium CMC, polyanionic cellulose, or cellulose gum, which is a white
to off-white, non-toxic, odorless, biodegradable powder, comprising
sodium CMC that has been refined and purified to a minimum assay of 90
percent. Purified CMC does not include unpurified or crude CMC, CMC
Fluidized Polymer Suspensions, and CMC that is cross-linked through
heat treatment. Purified CMC is CMC that has undergone one or more
purification operations which, at a minimum, reduce the remaining salt
and other by-product portion of the product to less than ten percent.
The merchandise subject to this order is classified in the Harmonized
Tariff Schedule of the United States at subheading 3912.31.00. This
tariff classification is provided for convenience and customs purposes;
however, the written description of the scope of the order is
Source: 70 FR 39734 (July 11, 2005)
Note that HTSUS numbers are subject to change.