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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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)