Porcelain Crucible for Laboratory Use
A high-purity porcelain crucible fired after shaping, designed for high-temperature melting and analysis in chemical laboratories. It falls under HTS 6909.90.00.00 as ceramic ware for laboratory or chemical uses, meeting the chapter's firing requirement and technical application. The translucent body absorbs less than 0.5% water per US notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made from refractory ceramics like alumina or zirconia
Refractory goods capable of withstanding >1500°C without softening fall under heading 6903, not technical ceramics of 6909.
If decorated and sold as decorative art object rather than functional lab ware
Articles of clay with >0.5% water absorption or non-technical ornamental use shift to Chapter 69 household/decoration headings.
If constructed primarily from laboratory glass rather than fired ceramic
Glass labware like Pyrex equivalents classify under Chapter 70, distinguished by material composition over firing process.
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Import Tips & Compliance
• Verify firing certification and water absorption test results per ASTM C373 to confirm laboratory-grade porcelain classification
• Include material composition documentation showing high kaolin content for non-porous body to avoid earthenware reclassification
• Ensure lab end-use declaration; mislabeling as tableware risks Chapter 69 exclusions or higher duties
Related Products under HTS 6909.90.00.00
Alumina Ceramic Boat for Technical Furnaces
A fired alumina ceramic boat used in technical furnaces for sample transport during high-heat processes in metallurgy labs. Classified under HTS 6909.90.00.00 for other ceramic wares of technical uses, as it meets firing requirements and excludes refractory building materials of 6901-6903.
Ceramic Evaporating Dish for Chemical Labs
A glazed porcelain evaporating dish fired for laboratory chemical concentration processes. It qualifies under HTS 6909.90.00.00 as 'other' ceramic wares for chemical or technical uses, distinct from kitchen earthenware due to low water absorption and lab specification.
Silicon Carbide Ceramic Jar for Packing Chemicals
Fired silicon carbide jar used for secure packing and conveyance of corrosive chemical powders in industrial settings. Falls under HTS 6909.90.00.00 for ceramic jars of a kind used for packing goods, as per heading description and chapter firing notes.
Zirconia Ceramic Technical Pot for Catalyst Handling
High-performance zirconia ceramic pot fired for handling catalysts in chemical processing plants. Classified in HTS 6909.90.00.00 as other technical ceramic wares, excluding electrical insulators or Chapter 69 exclusions.
Porcelain Buchner Funnel for Lab Filtration
Fired porcelain Buchner funnel with perforated plate for vacuum filtration in analytical chemistry labs. HTS 6909.90.00.00 applies to this laboratory ceramic ware, confirmed by low water absorption and technical design.
Ceramic Desiccator Plate for Laboratory Drying
Glazed porcelain desiccator plate fired for supporting samples in moisture-free lab environments. Falls under HTS 6909.90.00.00 for other laboratory ceramic wares per chapter technical use criteria.