Medical Grade Nitrogen NF from Canada
National Formulary (NF) nitrogen gas for pharmaceutical and medical applications like cryogenic therapy and blanketing. HTS 2804.30.00.00 covers it as chemically defined elemental nitrogen in Chapter 28, pure form.
Duty Rate — Canada → United States
3.7%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include USP/NF certificate of analysis; ensure pharma-grade cylinders
• Pitfall: medical devices containing nitrogen classify under Chapter 90