Lab-Grade Porcelain Watch Glass
A concave fired porcelain watch glass for covering lab vessels during evaporation. This product is a technical laboratory ceramic under tariff item 6909.90.00, with porcelain's characteristic translucency and low absorption.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 7% | — | 7% |
| 🇲🇽Mexico | 7% | — | 7% |
| 🇺🇸United States | 7% | — | 7% |
| 🇩🇪Germany | 7% | — | 7% |
| 🇯🇵Japan | 7% | — | 7% |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the watch glass is considered a general ceramic article rather than specifically for laboratory use
Other ceramic articles of porcelain or china under heading 69.14 may apply if not specifically designed for lab use.
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
• Confirm the watch glass is fired after shaping and designed for lab use
• Provide laboratory use documentation to CBSA to support classification under 'other' ceramic wares
• Verify the product is not classifiable as glassware under other headings
Related Products under Tariff item 6909.90.00
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Ceramic Desiccator Plate for Laboratory Drying
A glazed porcelain desiccator plate fired for supporting samples in moisture-free laboratory environments. This product is a ceramic ware for laboratory use, meeting the firing requirements of Chapter 69 and classifiable under the 'other' category of heading 69.09.
Ceramic Evaporating Dish for Chemical Labs
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Cordierite Ceramic Jar for Technical Packing
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