Containing perfluorooctane sulfonic acid, its salts, perfluorooctane sulfonamides, or perfluorooctane sulfonyl fluoride
Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: > Goods specified in subheading note 3 to this chapter: > Containing perfluorooctane sulfonic acid, its salts, perfluorooctane sulfonamides, or perfluorooctane sulfonyl fluoride
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 3824.87.00.00
PFOS Firefighting Foam Concentrate
Aqueous film-forming foam (AFFF) concentrate containing perfluorooctane sulfonic acid (PFOS) for enhanced fire suppression on hydrocarbon fuels. This preparation falls under HTS 3824.87.00.00 as it contains PFOS, one of the restricted substances specified in subheading note 3 to Chapter 38.
PFOS Textile Water Repellent Treatment
Liquid chemical preparation containing perfluorooctane sulfonamide for spray application to fabrics, providing durable water and oil repellency. Classified under 3824.87.00.00 per subheading note 3 due to specified PFOS-related substances.
PFOS Leather Finishing Preparation
Chemical emulsion containing perfluorooctane sulfonic acid salts for waterproofing leather goods during finishing processes. This falls under HTS 3824.87.00.00 as it contains PFOS salts per subheading note 3 requirements.
PFOS Industrial Metal Cleaning Solution
Aqueous cleaning preparation containing perfluorooctane sulfonyl fluoride for degreasing metal surfaces in manufacturing. Classified in 3824.87.00.00 due to presence of specified PFOS substance per Chapter 38 subheading note.
PFOS Carpet Protector Chemical
Spray-on carpet treatment containing perfluorooctane sulfonic acid for stain and soil resistance in commercial flooring. This preparation qualifies for HTS 3824.87.00.00 under subheading note 3 for PFOS-containing mixtures.
PFOS Paper Sizing Agent
Chemical preparation containing PFOS salts used in paper manufacturing to provide water resistance and improve surface properties. Falls under 3824.87.00.00 per Chapter 38 subheading note 3 specifications.
PFOS Circuit Board Coating
Conformal coating containing perfluorooctane sulfonamide for protecting electronic circuit boards from moisture and corrosion. Classified under HTS 3824.87.00.00 due to PFOS substance content per subheading requirements.
PFOS Aviation Fuel Additive
Specialty chemical additive containing perfluorooctane sulfonic acid for aviation fuel system anti-icing and corrosion protection. This falls under 3824.87.00.00 per Chapter 38 subheading note 3 for PFOS mixtures.
PFOS Medical Device Lubricant
Sterile lubricant preparation containing perfluorooctane sulfonyl fluoride for medical device manufacturing and assembly. Classified in HTS 3824.87.00.00 under subheading note 3 specifications for PFOS substances.
PFOS Polymer Processing Aid
Chemical additive containing perfluorooctane sulfonic acid salts used as processing aid in fluoropolymer extrusion and molding. Falls under 3824.87.00.00 per Chapter 38 PFOS subheading specifications.
PFOS Oil-Water Separator Media
Treatment media containing perfluorooctane sulfonamide for industrial oil-water separators in wastewater treatment. This preparation is classified under HTS 3824.87.00.00 due to specified PFOS substance content.
PFOS Synthetic Leather Coating
Liquid coating preparation with perfluorooctane sulfonic acid for polyurethane synthetic leather waterproofing. Classified in 3824.87.00.00 per subheading note 3 for PFOS-containing chemical preparations.
PFOS Windshield Wiper Fluid Additive
Concentrate containing perfluorooctane sulfonyl fluoride added to windshield washer fluids for improved cleaning and anti-fog properties. Falls under HTS 3824.87.00.00 due to PFOS substance specification.
PFOS Semiconductor Wafer Treatment
Specialty chemical containing perfluorooctane sulfonic acid used in semiconductor wafer cleaning and surface modification processes. This preparation qualifies for 3824.87.00.00 under PFOS subheading provisions.
PFOS Marine Antifouling Preparation
Chemical preparation containing perfluorooctane sulfonamide for marine vessel hull coatings to prevent biofouling. Classified under HTS 3824.87.00.00 per Chapter 38 subheading note 3 for PFOS mixtures.