Calcium Tungstate Powder from Canada
Calcium tungstate (CaWO4) powder is a scintillator material used in medical imaging detectors, classified under HTS 2841.80.00 as an alkaline earth tungstate. Its high density makes it ideal for radiation detection.
Duty Rate — Canada → United States
5.5%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Certify radiation-free status with Geiger counter logs to avoid 2844 radioactive materials scrutiny
• Specify particle size distribution (e.g
• <10 micron) as it affects classification uniformity
• For doped variants, declare dopant levels (<0.1%) to remain under pure tungstate heading