Radioactive residues

2844.42Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, radium-223, uranium-230 or uranium-232, and their compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements or compounds

2844.43Other radioactive elements and isotopes and compounds; other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds

2844.44Radioactive residues

Calculate exact duty for your shipment Not sure about classification? Ask the Tariff Assistant

Products classified under Tariff item 2844.4

GTLS Tritium Keychain Light

A self-luminous keychain light containing a glass tube filled with tritium gas and coated with a phosphor. The tritium gas excites the phosphor to produce a continuous glow without any external power source. This product falls under tariff item 2844.41.00 as a mixture containing tritium, with the radioactive component exceeding the specific activity threshold.

Self-Luminous Tritium Exit Sign

An emergency exit sign that uses self-luminous tritium tubes to provide illumination for up to 20 years without electricity. The sign consists of sealed glass tubes containing tritium gas and a phosphor coating, mounted in a metal or plastic frame. It is classified under tariff item 2844.41.00 as a mixture containing tritium, meeting the specific radioactivity threshold.

Tritiated Thymidine (3H-TdR)

Tritiated thymidine, a radioactively labeled nucleoside used in DNA synthesis research. This organic compound contains tritium atoms and is supplied as a solution for laboratory use. It falls under tariff item 2844.41.00 as a compound of tritium, in accordance with Chapter 28 Note 1 extensions for radioactive isotopes.

Tritiated Water (HTO) Solution

An aqueous solution of tritiated water (HTO) used as a tracer in biological and hydrological studies. The solution contains tritium as a radioactive isotope of hydrogen and meets the chemical definition requirements of Chapter 28. It is classified under tariff item 2844.41.00 as a compound of tritium.

Tritium Alloy Wire

A titanium-tritide alloy wire used in neutron generators for scientific and industrial applications. The wire contains tritium chemically bound to titanium, forming a stable metal hydride. It is classified under tariff item 2844.41.00 as an alloy containing tritium compounds, with radioactivity exceeding the Chapter threshold.

Tritium Calibration Source

A sealed source containing adsorbed tritium used for calibrating beta radiation monitors. The source is manufactured with a known activity and is NIST-traceable for accuracy. It falls under tariff item 2844.41.00 as a compound of tritium, with the radioactive content exceeding the specific activity threshold.

Tritium Ceramic Scintillator

A ceramic scintillator doped with tritium and scintillator crystals for radiation detection applications. This cermet-style product combines ceramic materials with tritium compounds to produce a sensitive detection medium. It is classified under tariff item 2844.41.00 as a ceramic product containing tritium.

Tritium Gas Vial

A sealed glass vial containing pure tritium gas (hydrogen-3) used in scientific research and calibration of radiation detectors. The vial contains the elemental isotope of hydrogen in gaseous form. It is classified under tariff item 2844.41.00 as a radioactive isotope of hydrogen.

Tritium Luminous Paint

A phosphor-based paint containing tritium gas in micro-vials for self-luminous markings on instruments. The paint is applied to surfaces to provide continuous illumination without electricity. It is classified under tariff item 2844.41.00 as a mixture containing tritium compounds with specific radioactivity exceeding the threshold.

Tritium Target for Cyclotron

A metal foil target enriched with tritium for neutron production in particle accelerators. The target is used in medical and research applications to generate neutrons. It is classified under tariff item 2844.41.00 as a compound or alloy containing tritium, with radioactivity exceeding 74 Bq/g.

Actinium-225 Chloride

Actinium-225 chloride is a chemically defined compound of the radioactive isotope Actinium-225, used primarily in targeted alpha therapy for cancer treatment. It falls under this tariff item as a compound of a specifically listed isotope.

Actinium-227 Alloy

Actinium-227 alloy with lanthanide stabilizers maintains prototype generator systems for medical isotope production. This alloy form containing listed Actinium-227 falls under this tariff item as an alloy of a specified isotope.

Californium-253 Metal Target

Californium-253 metal is a high-specific-activity neutron source material shaped as a target for research reactors and calibration standards. This pure metallic form of the listed Californium-253 isotope falls under this tariff item.

Curium-241 Dispersion Cermet

Curium-241 cermet dispersion in refractory metal matrix used for alpha spectroscopy standards and actinide research. This tariff item explicitly names Curium-241 compounds and cermets, and this high-purity isotopic material qualifies.

Curium-242 Ceramic Pellet

Curium-242 ceramic pellets serve as radioisotope thermoelectric generator (RTG) fuel elements for deep space missions. This ceramic product of the listed Curium-242 qualifies under this tariff item due to explicit inclusion of ceramic products.

Curium-244 Oxide Powder

Curium-244 oxide is a powdered ceramic compound of the transuranic radioactive isotope Curium-244, utilized in research for space power systems and nuclear batteries. It is classified under this tariff item due to explicit inclusion of compounds of listed isotopes.

Einsteinium-254 Alloy Dispersion

Einsteinium-254 alloy dispersion in platinum matrix serves ultra-trace analysis and nuclear forensics applications. This tariff item explicitly includes Einsteinium-254 alloys as dispersions containing listed isotopes.

Gadolinium-148 Oxide

Gadolinium-148 oxide compound provides intense neutron emission for calibration and weapons effects testing. It is classified under this tariff item as a compound of the specifically named Gadolinium-148 isotope.

Polonium-208 Mixture

Polonium-208 isotopic mixture with carriers for neutron initiator research and development. Mixtures containing listed Polonium-208 with dominant radioactivity classify under this tariff item.

Polonium-209 Ceramic Product

Polonium-209 ceramic beads embedded in beryllium oxide matrix function as portable neutron sources for oil well logging. They are covered by this tariff item as ceramic products containing listed Polonium-209.

Polonium-210 Metal Alloy

Polonium-210 alloy is a dispersion of the alpha-emitting isotope Polonium-210 in a metal matrix, applied in static eliminators for industrial manufacturing. It qualifies for this tariff item as an alloy containing a listed isotope.

Radium-223 Cermet Dispersion

Radium-223 cermet is a ceramic-metal composite dispersion containing the alpha-emitting isotope Radium-223, developed for brachytherapy sources. It is classified in this tariff item as a cermet (dispersion) of a listed radioactive isotope.

Radium-223 Generator Mixture

Radium-223 generator mixture contains parent-daughter isotopes for on-site Actinium-225 production in clinical settings. This tariff item includes mixtures containing listed Radium-223 compounds with activity exceeding 74 Bq/g.

Uranium-230 Nitrate Solution

Uranium-230 nitrate is a chemically defined aqueous solution of the rare alpha-emitter Uranium-230, used in radiopharmaceutical research and geochronology. It falls under this tariff item as a compound of an explicitly listed isotope.

Uranium-232 Metal Foil

Uranium-232 metal foil serves as calibration source for high-energy gamma spectroscopy due to intense daughter emissions. This pure metallic form of listed Uranium-232 classifies under this tariff item.

Actinium-225 Generator System

An Actinium-225/Bismuth-213 generator system for targeted alpha therapy, containing the radioactive decay chain of actinium (atomic number 89) in a resin column format. This falls under tariff item 2844.43.00 as a mixture containing radioactive elements and isotopes other than those of subheadings 2844.10, 2844.20, or 2844.30.

Americium-241 Oxide

Americium-241 oxide, a radioactive compound used in smoke detectors and as a calibration source for gamma spectroscopy. It is a chemically defined compound of the radioactive isotope americium-241, classified under this tariff item.

Americium-241 Oxide Source Material

Americium-241 oxide (Am-241 O2) is a chemically defined compound of the transuranic element americium (atomic number 95), used in neutron sources, smoke detectors, and industrial gauges. It is classified under tariff item 2844.43.00 as a radioactive element compound other than those of subheadings 2844.10, 2844.20, or 2844.30.

Berkelium-249 Metal Target

Berkelium-249 metal targets are pure isotope forms of element 97, used for synthesizing superheavy elements in research. They are classified under 2844.43.00 as other radioactive elements and isotopes, as berkelium is not covered by the specific subheadings 2844.10, 2844.20, or 2844.30.

Californium-252 Neutron Source

Californium-252 metal sources encapsulated for neutron radiography, well logging, and PGNAA analysis, featuring high neutron emission from spontaneous fission. This transplutonium element (atomic number 98) is classified under tariff item 2844.43.00 as a radioactive element other than those of subheadings 2844.10, 2844.20, or 2844.30.

Cesium-137 Chloride Sealed Sources

Cesium-137 chloride (CsCl) sealed sources are used in brachytherapy and calibration standards, as compounds of the fission product Cs-137 (half-life 30 years). These chemically defined radioactive compounds are classified under tariff item 2844.43.00 as other radioactive compounds.

Cesium-137 Chloride Solution

Cesium-137 chloride solution is a radioactive compound used in calibration sources and research applications. It is classified under 2844.43.00 as an 'other' radioactive compound, as cesium-137 is not covered by the specific subheadings for fissile or fertile materials.

Cesium-137 Sealed Source

Cesium-137 sealed irradiators used for blood irradiation and calibration standards in nuclear medicine. The cesium-137 isotope is a radioactive compound meeting Chapter 28 definitions, classified under this tariff item.

Co-60 Brachytherapy Seed

A tiny sealed cobalt-60 seed used for temporary implantation in brachytherapy procedures. The cobalt-60 isotope has a high specific activity, making it a radioactive compound classified under this tariff item.

Co-60 Gamma Irradiator Source

A high-activity cobalt-60 source encased in stainless steel for use in self-contained gamma irradiators, sterilizing medical equipment and food products. The cobalt-60 composition with high specific activity places it under this tariff item.

Cobalt-60 Irradiated Alloy Pellets

Cobalt-60 irradiated alloy pellets are sintered metal alloys containing the activated Co-60 isotope for radiotherapy and sterilization applications. These alloys containing radioactive isotopes are classified under tariff item 2844.43.00 as other alloys containing radioactive elements or isotopes.

Cobalt-60 Radioactive Source

A sealed capsule containing cobalt-60 isotope used for industrial radiography to inspect welds and materials for defects. The cobalt-60 isotope with specific radioactivity qualifies as a radioactive element under this tariff item.

Cobalt-60 Radiography Pencil

A portable, pencil-shaped sealed source of cobalt-60 gamma rays designed for non-destructive testing in field radiography of pipelines and structures. The cobalt-60 isotope content qualifies it as a radioactive compound under this tariff item.

Curium-244 Isotope Alloy

Curium-244 isotope alloys, where curium is alloyed with carrier metals for research reactor targets, are classified under 2844.43.00. Chapter Note 4(d) confirms that alloys containing radioactive isotopes with specific radioactivity exceeding 74 Bq/g fall within heading 28.44.

Gadolinium-153 Calibration Source

Gadolinium-153 sources for calibrating bone density scanners and PET/SPECT systems. The gadolinium-153 isotope in oxide form is a radioactive compound classified under this tariff item.

High-Specific-Activity Co-60 Isotope

Purified cobalt-60 isotope in metallic form with activity exceeding 74 Bq/g, used for research in nuclear physics and material studies. As an individual nuclide with high specific activity, it is classified under this tariff item.

Industrial Co-60 Exposure Source

A large-scale cobalt-60 source assembly for continuous exposure in industrial sterilization facilities processing plastics and spices. The cobalt-60 isotope with high radioactivity is classified under this tariff item.

Iridium-192 Industrial Radiography Source

Iridium-192 wire sources for non-destructive weld testing in pipeline and aerospace manufacturing. The iridium-192 isotope in sealed capsules qualifies as a chemically defined radioactive isotope under this tariff item.

Iridium-192 Wire for Brachytherapy

Iridium-192 wire for brachytherapy is a radioactive isotope used in cancer treatment implants. It is classified under 2844.43.00 as an 'other' radioactive element, as iridium-192 is not covered by the specific subheadings for fissile or fertile materials.

Iridium-192 Wire for Industrial Radiography

Iridium-192 wire consists of precious metal iridium activated to contain the Ir-192 isotope, used in weld inspection gamma radiography. As an alloy or dispersion containing a radioactive isotope of a precious metal, it falls under tariff item 2844.43.00.

Mixed Fission Product Ceramic Pellets

Sintered ceramic pellets containing multiple fission products (Cs-137, Sr-90, etc.) from nuclear fuel reprocessing for radiation research. These mixtures containing various radioactive isotopes and compounds are classified under tariff item 2844.43.00 as other mixtures containing radioactive elements or isotopes.

Neptunium-237 Oxide Powder

Neptunium-237 oxide powder is a radioactive compound of element 93, used in research and as a burnable poison in nuclear reactors. It is classified under 2844.43.00 as an 'other' radioactive compound, as it is not covered by the specific subheadings for fissile or fertile materials.

Palladium-103 Brachytherapy Seeds

Palladium-103 brachytherapy seeds in titanium encapsulation for prostate cancer treatment, containing the activated precious metal palladium isotope. These radioactive dispersions of precious metals are classified under tariff item 2844.43.00 as other radioactive elements or compounds.

Plutonium-239 Dioxide Powder

Plutonium-239 dioxide (PuO2) is a ceramic compound of the radioactive element plutonium (atomic number 94), used in mixed oxide (MOX) nuclear fuel fabrication. It is classified under tariff item 2844.43.00 as a compound of a radioactive element other than those of subheadings 2844.10, 2844.20, or 2844.30.

Polonium-210 Alpha Source

Polonium-210 electrodeposited on a metal substrate for alpha particle sources in research and static eliminators. Polonium (atomic number 84) is explicitly listed in Chapter 28 Note 6(a), and this product is classified under tariff item 2844.43.00 as a radioactive element other than those of subheadings 2844.10, 2844.20, or 2844.30.

Promethium-147 Battery

Promethium-147 batteries, also known as betavoltaic nuclear batteries, use promethium-147 as a radioactive energy source for long-life power applications. They are classified under 2844.43.00 as 'other' radioactive elements, as promethium (atomic number 61) is covered by Chapter Note 6(a).

Promethium-147 Beta Source

Promethium-147 used in thickness gauges for paper and plastic film manufacturing. As a chemically defined compound of the rare earth isotope promethium-147, it is classified under this tariff item per Chapter 28 notes.

Promethium-147 Beta Source Disks

Promethium-147 (atomic number 61) oxide ceramic disks for beta thickness gauging in manufacturing. Promethium is explicitly covered by Chapter 28 Note 6(a), and these disks are classified under tariff item 2844.43.00 as radioactive elements or compounds other than those of subheadings 2844.10, 2844.20, or 2844.30.

Promethium-147 Ceramic Dispersion

Promethium-147 ceramic dispersions, where promethium is dispersed in a ceramic matrix for beta batteries and thickness gauges, are classified under 2844.43.00. Chapter Note 4(d) includes dispersions containing radioactive isotopes with specific activity exceeding 74 Bq/g.

Radium-223 Dichloride Injection Precursor

Radium-223 dichloride precursor for Alpharadin therapy targeting bone metastases, as a chemically defined compound of radium (atomic number 88). This compound is classified under tariff item 2844.43.00 as a radioactive element compound other than those of subheadings 2844.10, 2844.20, or 2844.30.

Radium-226 Calibration Standard

Radium-226 reference sources for alpha spectrometry calibration in environmental labs. As a naturally occurring radioactive isotope, radium-226 is classified under this tariff item.

Radium-226 Needles

Radium-226 needles are historical brachytherapy devices containing radium-226, a radioactive isotope used in legacy cancer treatments. They are classified under 2844.43.00 as 'other' radioactive compounds, as radium is not covered by the specific subheadings for fissile or fertile materials.