Mixed Aldrin-Heptachlor Standard from Japan
Analytical standard mixture of aldrin and heptachlor isomers, under HTS 2903.82.00.00 per chapter note (b) for mixtures of isomers. Both are named ISO compounds with halogenated cyclanic structures. Used for multi-residue pesticide testing.
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
• Specify isomer content in entry docs; limit to research quantities under DE minimis
• Pitfall: incorrect isomer declaration leading to higher scrutiny