High-Contrast Polarizing Plates for Microscopes
High-contrast polarizing plates for microscopes are specialized plates of polarizing material used in petrographic microscopes for geological analysis. They provide precise rotation control and high extinction ratios for crossed polarization studies. These plates fall under tariff item 9001.20.00 as they are unmounted sheets or plates of polarizing material, not yet incorporated into microscope apparatus.
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 plates are mounted or designed as integral parts of a microscope.
Parts and accessories for compound optical microscopes are classified in heading 90.11.
If the plates are part of a polarizing device or system for microscopy.
Other optical appliances and instruments are classified in heading 90.13.
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 plates are presented as unmounted polarizing material, not as parts of microscopes, which would be classified under heading 90.11 or 90.13
• Provide CBSA with specifications on extinction ratio and material type
• Confirm if the plates are considered optical elements requiring specific import documentation
Related Products under Tariff item 9001.20.00
Architectural Polarizing Window Film Sheets
Architectural polarizing window film sheets are large-format sheets of polarizing material designed to control glare, heat gain, and provide privacy in commercial buildings and museums. They selectively polarize light to reduce reflections and protect light-sensitive exhibits. These sheets fall under tariff item 9001.20.00 as they are sheets of polarizing material, not yet cut or mounted for specific optical instruments.
Circular Polarizing Sheets for sunglasses Lenses
Circular polarizing sheets for sunglasses lenses are large rolls or sheets of polarizing material used by lens manufacturers to produce polarized sunglasses. They eliminate glare from horizontal surfaces by selectively filtering light waves. These sheets are classified under tariff item 9001.20.00 as they are sheets of polarizing material, unmounted and not yet shaped into lenses.
Linear Polarizing Plates for 3D Projectors
Linear polarizing plates for 3D projectors are precision plates that create orthogonal polarization states for left and right eye images in passive 3D cinema systems. They transmit specific linear polarizations (0°/90°) essential for 3D projection. These plates are classified under tariff item 9001.20.00 as sheets and plates of polarizing material, unmounted and not yet integrated into projector systems.
OLED Polarizing Film Sheets
OLED polarizing film sheets are ultra-thin polarizing films optimized for OLED display panels to improve contrast ratios and reduce ambient light reflection. They incorporate advanced retardation layers for wide viewing angles. These sheets fall under tariff item 9001.20.00 as sheets of polarizing material, unmounted and not yet applied to display panels.
Polarizing Film Sheets for LCD Displays
Polarizing film sheets for LCD displays are thin sheets of polarizing material designed for use in liquid crystal displays to control light polarization and enhance image contrast. They are cut to standard sizes for assembly into monitors and screens. These sheets are classified under tariff item 9001.20.00 as sheets of polarizing material, unmounted and not yet incorporated into display modules.
Polaroid Polarizing Sheets for Photography
Polaroid polarizing sheets for photography are large-format sheets used by photographers to reduce glare and reflections when shooting through windows or over water surfaces. They can be cut to size and placed in front of lenses or lights. These sheets fall under tariff item 9001.20.00 as sheets of polarizing material, unmounted and not yet integrated into camera equipment.