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Round Microscope Cover Slips

12mm diameter circular glass cover slips for specialized microscopy applications like cell culture. These are micro cover glasses under HTS 7017.90.10.00, distinct from square formats.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+37.5%37.5%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7017.90Same rate: 37.5%

If frosted or adhesive-coated

Cover slips with additional treatments beyond plain glass are other lab glassware.

3822Lower: 12.5% vs 37.5%

If pre-coated with laboratory reagents

Diagnostic reagents on glass substrates may classify as lab reagents.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

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Import Tips & Compliance

• Specify round shape and diameter in commercial invoice; ensure USP Type I glass compliance for pharma use; package in lint-free boxes to prevent breakage claims

Related Products under HTS 7017.90.10.00

Precleaned Glass Microscope Slides

Standard 25x75mm glass slides that are precleaned and ready for immediate use in microscopy. They are classified under HTS 7017.90.10.00 as microscope slides, which are essential laboratory glassware for holding specimens under a microscope.

Frosted End Microscope Slides

Glass microscope slides with one frosted end for pencil or ink labeling of specimens. These plain slides without coverslips are specifically designed for laboratory microscopy and fall under HTS 7017.90.10.00.

Borosilicate Micro Cover Glasses

Thin 22x22mm No. 1 borosilicate cover glasses used to cover specimens on microscope slides. They are precision glassware for laboratories, classified under HTS 7017.90.10.00 as micro cover glasses.

Charged Microscope Slides

Adhesion-treated glass slides with positive charge to hold tissue sections without clips. Despite surface treatment, they remain microscope slides under HTS 7017.90.10.00 for lab use.

Superfrost Plus Slides

Proprietary frosted slides with aqueous-based adhesive coating for superior specimen adhesion. Branded lab slides classified as microscope slides under HTS 7017.90.10.00.

Tissue Culture Micro Slides

Sterile glass slides optimized for cell attachment in tissue culture microscopy. They qualify as microscope slides under HTS 7017.90.10.00 despite sterile packaging.