Cold Cathode Ion Gauge Tube from Canada
Cold cathode tubes measuring ultra-high vacuum by ionizing residual gas with high-voltage discharge between electrodes. HTS 8540.89.00 includes these as other cold cathode tubes for vacuum measurement applications.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Vacuum range (Torr/Pascal) and bakeout temperature ratings in documentation
• Contamination sensitivity requires sealed shipping containers
• Avoid misclassification as vacuum pumps under 8414