Krypton-85 Leak Testing Apparatus from Japan
Sealed chamber system pressurizing Kr-85 gas to test vacuum vessel integrity for semiconductor equipment. HTS 9022.29.80.00 for beta-gamma leak detection apparatus in cleanroom manufacturing. Traceable to NIST.
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
• Sniffer probe sensitivity specs (10^-8 sccm) required
• Gas recovery system documentation prevents venting violations
• Class 1 laser safety if integrated with optical alignment