HS Code for Pulp filter sheets

Pulp filter sheets are classified under HS code 4812.00, which specifically identifies filter blocks, slabs, and plates of paper pulp. This classification is governed by the material composition and the intended industrial application. These products are manufactured by pressure-molding or felting paper pulp (usually wood pulp or other vegetable fibers) into thick, porous forms. Unlike standard paper (Heading 4805) or laboratory filter paper (Heading 4823), these items are characterized by their significant thickness and rigidity, designed for heavy-duty filtration in industries such as beverage production, chemical processing, or oil refining. The classification under 4812.00 is straightforward because it is a 'single-dash' subheading that explicitly names the product form (blocks, slabs, plates) and the material (paper pulp), leaving little room for ambiguity under GRI 1.

Products Included

• Thick cellulose filter slabs for wine filtration
• Porous pulp plates for industrial chemical separation
• Molded paper pulp filter blocks
• Regenerated cellulose filter sheets for heavy machinery
• Fibrous vegetable pulp plates for liquid clarification

Common Misclassification

These sheets are often confused with HS code 4823.20, which covers filter paper and paperboard cut to size. The distinction lies in the physical form; 4812.00 is for thick blocks or slabs, whereas 4823.20 is for thinner, flexible paper. Another misclassification occurs with HS code 5911.90, which covers textile products for technical uses. If the filter is made of textile fibers rather than paper pulp, it must be classified in Chapter 59. Furthermore, if the pulp is impregnated with chemicals that change its primary character to a chemical preparation, Chapter 38 might be considered, though this is rare for standard filter sheets.

FAQ

What is the HS code for Pulp filter sheets?

The HS code for pulp filter sheets, specifically in the form of blocks, slabs, or plates, is 4812.00.

Can these be classified as standard paper?

No, standard paper falls under headings like 4802 or 4805. Filter sheets are specialized products classified under 4812.00 due to their specific porous structure and industrial use.