HFC-23 Research Laboratory Gas Mixture from Canada
High-purity HFC-23 blend for atmospheric chemistry research and greenhouse gas studies. Classified in HTS 3827.51.00.00 due to trifluoromethane content in a mixture free of regulated ozone-depleting substances.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• University purchase orders facilitate duty-free academic imports
• Specify research application to avoid commercial classification
• Grant funding documentation supports nonprofit import status