n-Pentane Calibration Standard from Japan
Certified reference n-pentane at 1000 ppm in solvent for gas chromatography calibration of hydrocarbon analyzers. Pure base compound under HTS 2901.10.30.00, with dilution per Chapter 29 note (d). NIST-traceable for environmental monitoring.
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
• Include certificate of analysis with concentration accuracy; handle as hazmat
• Issue: expiration dating on standards