Calcium Tungstate Scintillation Crystals from Mexico
Synthetic single crystals of calcium tungstate grown for use as scintillation detectors in radiation measurement equipment. Classified as chemically defined calcium tungstates under this tariff item, these crystals emit light when exposed to ionizing radiation.
Duty Rate — Mexico → Canada
0%
Import Tips
• If the crystals are mounted or polished for use in detectors, they may be classified as optical elements under Chapter 90
• Provide the end-use documentation to support classification as unworked crystals
• Ensure the crystals are properly packed to prevent damage during transport