Corrosion inhibitor Hs Code

Corrosion inhibitor harmonized system code

Product Overview Corrosion inhibitors classified under HS Code 382499 are chemical substances specifically formulated to prevent or reduce metal corrosion by forming a protective film or neutralizing corrosive agents. These inhibitors typically present as clear to pale yellow liquids or powders with controlled pH levels ranging from 6 to 9, designed for stability and efficacy under various environmental conditions. The product category under 382499 encompasses other chemical preparations not elsewhere specified, including organic and inorganic inhibitors, synergistic blends, and specialty formulations tailored for industrial applications. Commercially, these inhibitors are extensively utilized in sectors such as food processing, metal fabrication, and retail packaging to protect machinery, storage tanks, and food-contact surfaces from oxidative degradation and corrosion-related damage. Their value proposition lies in extending equipment lifespan, minimizing maintenance costs, and ensuring compliance with safety and hygiene standards, thereby supporting operational continuity and regulatory adherence in international supply chains. HS Code Classification & Trade Specifications The HS Code 382499 falls within Chapter 38 (Chemical products), Heading 3824 (Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries, not elsewhere specified or included). The code breaks down as follows: Chapter 38 covers chemical products; Heading 3824 specifies miscellaneous chemical preparations; Subheading 3824.99 identifies other chemical products not classified elsewhere, which includes corrosion inhibitors. This classification is justified by the product’s chemical composition and its role as a protective agent rather than a raw material or finished metal product. Standard trade practices involve packaging in sealed, corrosion-resistant containers ranging from 5 to 200 liters or equivalent weight in powder form, ensuring preservation against contamination and degradation during transit. Compliance with ISO 9001 quality management systems and adherence to WTO customs documentation protocols—including Material Safety Data Sheets (MSDS) and Certificates of Analysis (COA)—are critical. These inhibitors meet international standards for chemical stability, concentration (typically 10-50% active ingredient), and compatibility with food-grade and industrial applications, facilitating seamless customs clearance and import/export operations.

Corrosion inhibitor Chapter Note

1.- This Chapter does not cover : (a) Separate chemically defined elements or compounds with the exception of the following : (1) Artificial graphite (heading 38.01); (2) Insecticides, rodenticides, fungicides, herbicides, anti-sprouting products and plant-growth regulators, disinfectants and similar products, put up as described in heading 38.08; (3) Products put up as charges for fire-extinguishers or put up in fire-extinguishing grenades (heading 38.13); (4) Certified reference materials specified in Note 2 below; (5) Products specified in Note 3 (a) or 3 (c) below; (b) Mixtures of chemicals with foodstuffs or other substances with nutritive value, of a kind used in the preparation of human foodstuffs (generally heading 21.06); (c) Products of heading 24.04; (d) Slag, ash and residues (including sludges, other than sewage sludge), containing metals, arsenic or their mixtures and meeting the requirements of Note 3 (a) or 3 (b) to Chapter 26 (heading 26.20); (e) Medicaments (heading 30.03 or 30.04); or (f) Spent catalysts of a kind used for the extraction of base metals or for the manufacture of chemical compounds of base metals (heading 26.20), spent catalysts of a kind used principally for the recovery of precious metal (heading 71.12) or catalysts consisting of metals or metal alloys in the form of, for example, finely divided powder or woven gauze (Section XIV or XV). 2.- (A) For the purpose of heading 38.22, the expression “certified reference materials” means reference materials which are accompanied by a certificate which indicates the values of the certified properties, the methods used to determine these values and the degree of certainty associated with each value and which are suitable for analytical, calibrating or referencing purposes. (B) With the exception of the products of Chapter 28 or 29, for the classification of certified reference materials, heading 38.22 shall take precedence over any other heading in the Nomenclature. 3.- Heading 38.24 includes the following goods which are not to be classified in any other heading of the Nomenclature : (a) Cultured crystals (other than optical elements) weighing not less than 2.5 g each, of magnesium oxide or of the halides of the alkali or alkaline-earth metals; (b) Fusel oil; Dippel's oil; (c) Ink removers put up in packings for retail sale; (d) Stencil correctors, other correcting fluids and correction tapes (other than those of heading 96.12), put up in packings for retail sale; and (e) Ceramic firing testers, fusible (for example, Seger cones). 4.- Throughout the Nomenclature, “municipal waste” means waste of a kind collected from households, hotels, restaurants, hospitals, shops, offices, etc., road and pavement sweepings, as well as construction and demolition waste. Municipal waste generally contains a large variety of materials such as plastics, rubber, wood, paper, textiles, glass, metals, food materials, broken furniture and other damaged or discarded articles. The term “municipal waste”, however, does not cover : (a) Individual materials or articles segregated from the waste, for example wastes of plastics, rubber, wood, paper, textiles, glass or metals, electrical and electronic waste and scrap (including spent batteries) which fall in their appropriate headings of the Nomenclature; (b) Industrial waste;(c) Waste pharmaceuticals, as defined in Note 4 (k) to Chapter 30; or (d) Clinical waste, as defined in Note 6 (a) below. 5.- For the purposes of heading 38.25, “sewage sludge” means sludge arising from urban effluent treatment plant and includes pre-treatment waste, scourings and unstabilised sludge. Stabilised sludge when suitable for use as fertiliser is excluded (Chapter 31). 6.- For the purposes of heading 38.25, the expression “other wastes” applies to : (a) Clinical waste, that is, contaminated waste arising from medical research, diagnosis, treatment or other medical, surgical, dental or veterinary procedures, which often contain pathogens and pharmaceutical substances and require special disposal procedures (for example, soiled dressings, used gloves and used syringes); (b) Waste organic solvents; (c) Wastes of metal pickling liquors, hydraulic fluids, brake fluids and anti-freezing fluids; and (d) Other wastes from chemical or allied industries. The expression “other wastes” does not, however, cover wastes which contain mainly petroleum oils or oils obtained from bituminous minerals (heading 27.10). 7.- For the purposes of heading 38.26, the term “biodiesel” means mono-alkyl esters of fatty acids of a kind used as a fuel, derived from animal, vegetable or microbial fats and oils whether or not used.