Nitrogen
Hydrogen, rare gases and other non-metals. > Rare gases: > Nitrogen > Nitrogen
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2804.30.00
Bulk Liquid Nitrogen ISO Tank
Bulk liquid nitrogen transported in ISO cryogenic tanks for industrial supply chains. It is pure elemental nitrogen in liquid form, classified under tariff item 2804.30.00 as a non-metal element of Chapter 28.
Cryogenic Nitrogen for MRI Cooling
Liquid nitrogen used to cool superconducting magnets in MRI machines. It is elemental nitrogen in liquid form, falling under tariff item 2804.30.00 as a non-metal element, regardless of its technical application.
Food Grade Nitrogen Gas
Nitrogen gas meeting FDA purity standards for Modified Atmosphere Packaging (MAP) in food preservation. It is pure elemental nitrogen, classified under tariff item 2804.30.00 as a non-metal, and the food-grade use does not exclude it from Chapter 28.
High Purity Nitrogen 99.999% UHP
Ultra-high purity nitrogen gas at 99.999% N2, supplied in specialty cylinders for laboratory and semiconductor cleanrooms. It is a separate chemical element meeting Chapter 28 definitions, classified under tariff item 2804.30.00.
Industrial Grade Nitrogen Gas
Pure nitrogen gas (N2) compressed in high-pressure steel cylinders for industrial applications such as blanketing, purging, and inerting. It is chemically pure nitrogen, falling under tariff item 2804.30.00 as a non-metal element.
Laboratory Nitrogen Zero Grade
Zero-grade nitrogen with ultra-low hydrocarbon impurities for analytical instruments like GC-MS. It is high-purity elemental nitrogen, classified under tariff item 2804.30.00, and laboratory use does not change its classification.
Liquid Nitrogen Cryogenic
Liquefied nitrogen (LIN) at -196°C in Dewar flasks or bulk tanks for cryopreservation and cooling applications. Tariff item 2804.30.00 applies to nitrogen in any physical state as a non-metal element, as confirmed by Chapter 28 notes.
Medical Grade Nitrogen NF
National Formulary (NF) nitrogen gas for pharmaceutical and medical applications like cryogenic therapy and blanketing. It is chemically defined elemental nitrogen, classified under tariff item 2804.30.00 in Chapter 28.
Nitrogen for Tire Inflation
High-purity nitrogen for inflating vehicle tires, reducing oxidation in racing and fleet applications. It is pure non-metal gas, classified under tariff item 2804.30.00 as elemental nitrogen.
Nitrogen Gas for Welding Shielding
Pure nitrogen in cylinders for laser welding and plasma cutting, providing a shielding atmosphere. It is non-metal nitrogen gas, classified under tariff item 2804.30.00 per the Chapter 28 hierarchy.