Ceramic Buchner Funnel
Perforated porcelain funnel for vacuum filtration in chemical labs, fired to withstand corrosive filtrates. Falls under HTS 6909.19.50 as other technical laboratory ceramics, not general lab glassware. High-purity body meets US note definitions for porcelain.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ornamental statuettes rather than functional funnel
Shifts to decorative ceramic articles.
If part of larger filtering machinery
Machinery parts classified by function in Chapter 84.
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Import Tips & Compliance
• Provide filtration end-use affidavits to distinguish from industrial strainers
• Confirm thickness under 3.2 cm if tile-like to avoid 6907/6908 exclusions
• Test for translucency in thin sections per US porcelain note
Related Products under HTS 6909.19.50
Porcelain Crucible for Laboratory Use
A high-fired porcelain crucible designed for melting and heating substances in laboratory settings, featuring excellent thermal shock resistance and chemical inertness. It falls under HTS 6909.19.50 as a ceramic ware specifically for laboratory technical uses, made from porcelain with low water absorption. The firing process exceeds 800°C, qualifying it for Chapter 69.
Ceramic Evaporating Dish
A shallow, wide porcelain dish used in labs to evaporate liquids and concentrate solutions, resistant to acids and high temperatures. Classified under HTS 6909.19.50 for other ceramic laboratory wares, distinct from building materials or consumer goods. Fired porcelain body ensures durability in technical chemical applications.
Porcelain Mortar and Pestle Set
A lab-grade porcelain mortar and pestle for grinding and mixing chemicals, with a translucent fired body absorbing less than 0.5% water. HTS 6909.19.50 covers this as other laboratory ceramic ware, separate from consumer kitchen tools. The set qualifies as a single article per US notes when imported together.
Laboratory Ceramic Desiccator Plate
Porcelain perforated plate for desiccators, used to hold samples during moisture removal in labs. HTS 6909.19.50 applies to this other laboratory ceramic ware, fired post-shaping with clay base. Opaque stoneware variant also qualifies if absorption under 3%.
Porcelain Watch Glass
Concave porcelain dish for covering lab vessels, evaporating liquids, or as a lid in technical processes. Classified in HTS 6909.19.50 for other ceramic lab wares, meeting fired porcelain criteria. Chemical resistance key for technical use distinction.
Ceramic Sintering Boat
High-fired porcelain boat for holding powders during sintering in technical ceramic production labs. HTS 6909.19.50 covers other chemical/technical uses, post-shaped firing confirmed. Withstands temperatures for material processing.