Nitrogen
Hydrogen, rare gases and other nonmetals: > Nitrogen
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2804.30.00.00
Industrial Grade Nitrogen Gas
Pure nitrogen gas (N2) compressed in high-pressure steel cylinders for industrial applications such as blanketing, purging, and inerting in manufacturing processes. It falls under HTS 2804.30.00.00 as chemically pure nitrogen, a nonmetal gas classified in Chapter 28. This excludes mixtures or compounds covered by other headings.
High Purity Nitrogen 99.999% UHP
Ultra-high purity (UHP) nitrogen gas at 99.999% N2, supplied in specialty cylinders for laboratory and semiconductor cleanrooms. Classified under HTS 2804.30.00.00 as elemental nitrogen, meeting Chapter 28 definitions for nonmetals. Purity distinguishes it from lower-grade industrial gases.
Liquid Nitrogen Cryogenic
Liquefied nitrogen (LIN) at -196°C in Dewar flasks or bulk tanks for cryopreservation and cooling applications. HTS 2804.30.00.00 applies to nitrogen in any physical state (gas or liquid) as a nonmetal element. Chapter notes confirm elemental classification regardless of form.
Food Grade Nitrogen Gas
Nitrogen gas meeting FDA purity standards for Modified Atmosphere Packaging (MAP) in food preservation, displacing oxygen in packaging lines. Under HTS 2804.30.00.00 as pure nitrogen, a nonmetal, not excluded by food use per Chapter 28 notes.
Medical Grade Nitrogen NF
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.
Nitrogen Gas for Welding Shielding
Pure nitrogen in cylinders for laser welding and plasma cutting, providing shielding atmosphere. Classified in HTS 2804.30.00.00 as nonmetal nitrogen gas per Chapter 28 hierarchy.
Laboratory Nitrogen Zero Grade
Zero-grade nitrogen with ultra-low hydrocarbon impurities for analytical instruments like GC-MS. Falls under HTS 2804.30.00.00 as high-purity elemental nitrogen, not excluded by lab use.
Bulk Liquid Nitrogen ISO Tank
Large-volume liquid nitrogen transported in ISO cryogenic tanks for industrial supply chains. HTS 2804.30.00.00 applies to bulk pure nitrogen in liquid form as a nonmetal.
Nitrogen for Tire Inflation
High-purity nitrogen for inflating vehicle tires, reducing oxidation in racing and fleet applications. Under HTS 2804.30.00.00 as pure nonmetal gas.
Cryogenic Nitrogen for MRI Cooling
Liquid nitrogen for cooling superconducting magnets in MRI machines. Classified HTS 2804.30.00.00 as elemental nitrogen for technical use.