Other
Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials: > Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: > Other
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
Subheadings
Products classified under HTS 3822.19.00
ELISA Test Kit for Human Insulin
A complete enzyme-linked immunosorbent assay (ELISA) kit designed for the quantitative detection of human insulin in serum or plasma samples. This prepared diagnostic reagent kit falls under HTS 3822.19.00 as it contains multiple reagents on a backing (microplate) for laboratory use in diagnosing metabolic disorders. It is not a product of heading 3006 as it is intended for research and clinical lab analysis.
COVID-19 IgG/IgM Rapid Test Cassette
Lateral flow immunoassay cassette for detecting SARS-CoV-2 IgG and IgM antibodies in human serum, plasma or whole blood. This prepared diagnostic reagent on a backing qualifies for HTS 3822.19.00 as a laboratory test kit containing antibodies, buffers and detection reagents. Used in clinical labs for serological screening.
Luminex Multiplex Bead-Based Assay Kit
Magnetic microsphere-based assay kit containing color-coded beads conjugated with capture antibodies for simultaneous detection of multiple cytokines in biological samples. Classified under HTS 3822.19.00 as prepared laboratory reagents in kit form for flow cytometry analysis. Essential for immunology research laboratories.
qPCR Viral RNA Detection Master Mix
Ready-to-use quantitative PCR master mix containing primers, probes, enzymes and buffers optimized for SARS-CoV-2 RNA detection. This prepared laboratory reagent qualifies under HTS 3822.19.00 for molecular diagnostic applications. Supplied in kit form with positive/negative controls.
Cell Culture Contamination Detection Kit
PCR-based detection kit for common cell culture contaminants including mycoplasma, bacteria and fungi species. Contains extraction reagents, master mix and species-specific primers on disc backing. HTS 3822.19.00 classification for laboratory quality control reagents.
Hormone Panel ELISA Kit (TSH/T4/T3)
Three-in-one ELISA kit measuring TSH, Free T4 and T3 hormones simultaneously for thyroid function screening. Contains coated microplates, conjugates, substrates and standards as prepared diagnostic reagents under HTS 3822.19.00. For endocrine laboratory testing.
Water Quality Test Kit (Microbiological)
Prepared reagents and chromogenic substrates for detecting total coliforms and E. coli in drinking water samples. Kit includes pre-filled vials with culture media and fluorescence reagents on vial backing. HTS 3822.19.00 for environmental laboratory testing.
Cancer Biomarker Multiplex Kit
Luminescent bead-based multiplex assay for 10 key cancer biomarkers (PSA, CA125, CEA, etc.) in serum. Contains capture beads, detection antibodies and standards as prepared laboratory diagnostic reagents under HTS 3822.19.00. For oncology research laboratories.
Food Allergen Detection Lateral Flow Kit
Rapid lateral flow strips with antibodies for detecting gluten residues in food products at 20 ppm sensitivity. Prepared diagnostic reagents on nitrocellulose backing for food safety laboratory testing under HTS 3822.19.00. Includes extraction buffer and controls.
Antibiotic Susceptibility Test Panels
Frozen microdilution panels containing dried antibiotics at MIC concentrations for bacterial susceptibility testing. Prepared laboratory reagents in 96-well plate format under HTS 3822.19.00. For clinical microbiology laboratories.
Protein Purification Column Kit
Affinity chromatography spin columns pre-packed with Ni-NTA resin for His-tagged protein purification. Contains binding/wash/elution buffers as prepared laboratory reagents under HTS 3822.19.00. For molecular biology research laboratories.
DNA Damage Comet Assay Kit
Complete kit for single cell gel electrophoresis containing lysis buffer, alkaline buffer, staining reagents and slides. Prepared laboratory reagents for genotoxicity testing under HTS 3822.19.00. Used in toxicology research.
Enzyme Activity Assay Kit (LDH)
Colorimetric assay kit measuring LDH enzyme activity in cell lysates and serum samples at 492 nm. Contains substrate, dye and standards as prepared diagnostic reagents under HTS 3822.19.00. For cell biology and clinical chemistry labs.
Viral Load Quantification Kit (HIV)
Real-time RT-PCR kit for HIV RNA viral load quantification across all HIV-1 groups/subtypes. Contains primers, probes, RT enzyme and armored RNA controls under HTS 3822.19.00. For virology reference laboratories.
Blood Typing Antisera Kit
Monoclonal antisera kit containing Anti-A, Anti-B, and Anti-D reagents for forward blood grouping on slide or microplate. Prepared diagnostic reagents for transfusion laboratory use under HTS 3822.19.00. Includes control sera and disposable cards.