High-Purity ZnS Luminescent Crystals (99.99%) from China
Crystalline zinc sulfide of luminescent grade with purity exceeding 99.99%, used as a scintillator material in radiation detection equipment. As a chemically defined inorganic sulphide, it is classifiable under tariff item 2830.90.00, provided it is not in a worked form excluded by Chapter 28 notes.
Duty Rate — China → Canada
0%
Import Tips
• Confirm the crystals are not cut into discs, wafers, or similar forms, as those may fall under heading 38.18
• Provide documentation on the crystal growth method and purity analysis
• If the crystals are mounted or assembled into detectors, consider whether another heading applies