Gas Chromatograph Optical Window from Germany
Sapphire windows for flame ionization detectors (FID) in GC systems (9027.90 optical components), transmitting UV for ionization efficiency. Withstands 400°C combustion temperatures. Parts of optical chromatographic instruments.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Certify sapphire thermal shock resistance and UV transmission >90% at 200nm
• Document exact FID detector model compatibility and mounting specifications
• Include gas-tight seal test results for pressurized detector environments