Filter Paper Base for Lab Filters
Uncoated porous paper weighing 13 g/m² in rolls for manufacturing laboratory filter papers. Falls under HTS 4805.91.50.00 for other uncoated paper ≤15 g/m², not further processed.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-cut into filter discs or shapes
Cut filter paper qualifies as a paper article under 4823.
If fluting paper specs despite low weight
If meeting fluting strength requirements, classifies in 4805.1x.
If lightly coated on one side
Any coating changes to coated paper heading 4810.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document intended use as base stock to prevent classification as finished filter
• Test for contaminants; purity affects end-use compliance
• Avoid folding or pleating pre-import, as it becomes a 4823 article
Related Products under HTS 4805.91.50.00
Tissue Base Paper for Facial Tissues
Uncoated tissue paper weighing 14 g/m², produced in large rolls for conversion into facial tissues or bathroom tissue. It meets note 3 to chapter 48 as it is in rolls, not further worked beyond basic production, and falls under 4805.91.50.00 due to its low weight under 15 g/m².
Ultra-Thin Bible Paper Rolls
High-opacity uncoated paper weighing 12 g/m² in jumbo rolls, designed for thin bible printing stock. Classified under 4805.91.50.00 as other uncoated paper not further worked, with weight not over 15 g/m².
Cigarette Paper Web Stock
Specialty uncoated paper at 10 g/m² grammage in continuous web rolls for cigarette paper production. It qualifies for 4805.91.50.00 as other uncoated paperboard in rolls, weighing under 15 g/m² per chapter specifications.
Wrapping Tissue Paper Rolls
Soft uncoated tissue paper weighing 14 g/m² in bulk rolls for gift wrapping conversion. Meets 4805.91.50.00 criteria for other uncoated paper in rolls under 15 g/m².
Battery Separator Tissue Paper
Uncoated microporous paper weighing 12 g/m² in rolls for alkaline battery separators. Classified under HTS 4805.91.50.00 as lightweight other uncoated paper not further worked.
Technical Carbonless Copy Base Paper
Ultra-light uncoated paper at 11 g/m² for carbonless copy paper production layers, supplied in jumbo rolls. Classified in 4805.91.50.00 as other uncoated paper weighing not over 15 g/m².