Schlieren Imaging Lens Adapter
A specialized adapter ring for knife-edge lenses in schlieren flow visualization systems. It enables precise mounting of optical components for fluid dynamics studies. This adapter is classified under tariff item 9013.90.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 adapter is sold with the knife-edge lens
Lenses with their mounting hardware may be classified as complete optical elements.
If the adapter is for a schlieren measuring instrument
Schlieren systems are measuring instruments classified in heading 90.31.
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
• Provide documentation showing the adapter is for schlieren systems, not general photography
• Verify that the adapter is not a standard camera lens mount, which would be classified elsewhere
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