HTS code 9902.11.57 covers "Industrial grade nitrocellulose, having a nitrogen content of less than 12.4 percent on a dry weight basis, damped with an alcohol content of 28 to 32 percent by weight (CAS No. 9004-70-0), presented in fiber drums each containing 85 kg, 100 kg, 110 kg or 120 kg of such nitrocellulose, certified by the importer as made from at least 50 percent cotton linter or wood pulp and as having each such drum lined with an antistatic plastic bag and equipped with a coupling for mechanical unloading (provided for in subheading 3912.20.00)" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.