Cavity Ring-Down Spectroscopy Trace Gas Analyzer from Japan
Ultra-sensitive optical spectrometer measuring ppb levels of water vapor, isotopes, and greenhouse gases using laser cavity decay time. HTS 9027.10.40.00 for advanced optical gas analysis.
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
• Include mirror reflectivity specifications (>99.99%) proving CRDS technology
• Classify for research use vs process control to avoid 9031
• Avoid 'optical sensor' generic description triggering broader classifications