Deuterium Arc Lamp Electrode Tube from Japan
Specialized gas discharge tubes using deuterium gas for continuous UV spectrum generation in spectroscopy. Falls under HTS 8540.89.00 as gas-filled tubes producing light through cathode-initiated arc discharge.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• UV irradiance and spectral range specifications mandatory for instrument compatibility
• Pressure vessel certification required for gas containment safety
• Distinguish from complete lamps under 8539 (electric filament lamps)