Silicon Carbide Laboratory Mortar and Pestle
Fired silicon carbide mortar and pestle set for grinding hard samples in analytical chemistry labs. Exhibiting a Mohs hardness of 9.5, this set qualifies as technical ceramic ware under tariff item 6909.12.90. It offers high resistance to acids and wear for demanding applications.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 4.5% | — | 4.5% |
| 🇲🇽Mexico | 4.5% | — | 4.5% |
| 🇺🇸United States | 4.5% | — | 4.5% |
| 🇩🇪Germany | 4.5% | — | 4.5% |
| 🇯🇵Japan | 4.5% | — | 4.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the set is considered a hand tool rather than ceramic ware
Tools of Chapter 82 are excluded from Chapter 69.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the silicon carbide is fired and not just bonded, to meet Chapter 69 rules
• Provide hardness certification from the manufacturer
• Classify as laboratory equipment to avoid higher duties
Related Products under Tariff item 6909.12.90
Aluminum Oxide Technical Packing Jars
Dense aluminum oxide jars used for packing corrosive goods in chemical transport. These fired ceramic jars have a hardness exceeding 9 on the Mohs scale, making them impervious to most reagents. They fall under tariff item 6909.12.90 as other technical ceramic wares for conveyance.
Boron Nitride Crucible for Technical Furnaces
Hexagonal boron nitride ceramic crucible for high-purity melting in semiconductor laboratories. This fired ceramic achieves a Mohs hardness over 9, qualifying it as a technical ware under tariff item 6909.12.90. It offers excellent thermal shock resistance for demanding applications.
Fused Silica Distillation Flask
Fused silica distillation flask for precise distillation in chemical research laboratories. The fired ceramic body reaches a Mohs hardness of 9 or more, meeting Chapter 69 criteria for technical ceramic wares. Its translucent, low-absorption properties make it ideal for handling volatile compounds.
Silicon Nitride Laboratory Funnels
Fired silicon nitride funnels for filtration in harsh chemical environments. With a Mohs hardness exceeding 9, these funnels qualify as technical ceramic wares under tariff item 6909.12.90. They offer high corrosion and thermal resistance for laboratory use.