Silicon Carbide Laboratory Mortar and Pestle
Fired silicon carbide set for grinding hard samples in analytical chemistry labs. Exhibits Mohs hardness of 9.5, qualifying as technical ceramic ware under HTS 6909.12 for its resistance to acids and high wear. Shaped and fired to Chapter 69 specifications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If using lower hardness porcelain
Porcelain or softer mortars for lab use classify under the subheading for hardness <9.
If sold as household kitchen tool
End-use shift to retail earthenware kitchenware moves it to heading 6912, based on marketing and absorption.
If containing carbon for refractory purposes
High-carbon ceramic lab ware may fall under heading 6902 if designed for extreme refractory applications.
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Import Tips & Compliance
• Submit hardness test results (Mohs scale) with entry; pair mortar and pestle as single article per US notes if imported together
• Avoid general kitchenware labeling to stay in technical category
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