Borosilicate Watch Glass 100mm
A 100mm concave watch glass made of low-expansion borosilicate, used to cover beakers and prevent contamination during experiments. Its thermal shock resistance qualifies it as laboratory glassware of heading 70.17.
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 |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
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 glass does not meet the low-expansion coefficient
Other laboratory glassware of heading 70.17.
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
• Classify as laboratory glassware; ensure the borosilicate composition is stated on the invoice
• If the watch glass is part of a set, check if the set's classification changes
• Keep product data sheets for CBSA
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