Fused Silica Lamp Tubing from Mexico
Unworked tubing of synthetic fused quartz for high-intensity discharge lamps and UV lamps. Provides envelope material that transmits UV while containing high pressures. Covered by 7002.31.00.00 as unworked fused silica tubes.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• UV transmission specifications (>90% at 254nm) confirm fused quartz vs other glasses
• Distinguish between synthetic (electric melted) and natural quartz tubing