Of electrophoresis instruments not incorporating an optical or other measuring device
Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof: > Microtomes; parts and accessories: > Parts and accessories: > Of electrical instruments and apparatus: > Other: > Of electrophoresis instruments not incorporating an optical or other measuring device
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 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9027.90.54.00
Electrophoresis Tank Leveling Base
Adjustable aluminum platform ensuring horizontal alignment of gel tanks for uniform electrophoresis.
Gel Electrophoresis Tray Assembly
This plastic and aluminum tray assembly is designed specifically for holding and running agarose or polyacrylamide gels in horizontal electrophoresis instruments. It fits standard models like Bio-Rad Mini-Sub Cell and lacks any integrated optical or measuring devices, classifying it as a part under HTS 9027.90.54.00 for electrophoresis equipment parts. The component ensures precise gel casting and sample separation without detection functionality.
Tank Grounding Clip Set
Stainless steel alligator clips grounding electrophoresis tanks to prevent electrical hazards.
Gel Knife and Scraper Tool
Dual-purpose stainless steel tool for excising and scraping DNA/RNA bands from gels post-run.
Electrophoresis Power Cord Connector
A specialized electrical connector for linking power supplies to gel electrophoresis tanks, featuring high-voltage tolerant insulation for safe operation up to 300V. This accessory is exclusive to non-optical electrophoresis systems like Hoefer gel boxes. It qualifies under HTS 9027.90.54.00 as an electrical part of physical/chemical analysis apparatus.
Polyacrylamide Gel Casting Dam
Precision-machined silicone dams used to form leak-proof seals during polyacrylamide gel polymerization in vertical electrophoresis setups like Bio-Rad Mini-PROTEAN. Exclusively for non-optical detection instruments. Falls under HTS 9027.90.54.00 as an essential accessory for chemical analysis apparatus.
SDS-PAGE Buffer Reservoir Gasket
EPDM rubber gasket sealing upper and lower buffer chambers in SDS-PAGE electrophoresis tanks, preventing leaks during high-voltage runs. Designed for instruments like Invitrogen Novex systems without optical readers. Classified under HTS 9027.90.54.00 for electrical electrophoresis parts.
Electrophoresis Tank Lid Clamp Set
Set of four stainless steel thumb-screw clamps securing tank lids on submarine gel electrophoresis units, ensuring electrical contact integrity. For non-optical systems like Bio-Rad Wide Mini-Sub Cell. HTS 9027.90.54.00 applies to these electrical instrument accessories.
Combs for Gel Electrophoresis Wells
Shark-tooth and standard Teflon combs for creating sample loading wells in agarose and acrylamide gels, compatible with Mini-Gel systems. Lacks measuring features, fitting HTS 9027.90.54.00 for electrophoresis consumable parts.
Electrophoresis Cooling Plate
Aluminum heat dissipation plate for maintaining temperature control in high-voltage electrophoresis runs, fitting standard tank bottoms. For instruments without integrated optical detection, under HTS 9027.90.54.00.
Sample Loading Guide Template
Acrylic template aligning micropipette tips for precise multi-well gel loading in high-throughput electrophoresis. Non-measuring accessory for basic systems, HTS 9027.90.54.00.
Electrophoresis Electrode Assembly
Platinum wire electrode pair with insulated leads for submerged gel electrophoresis tanks, providing uniform current distribution. For non-optical instruments, under HTS 9027.90.54.00.
Vertical Slab Gel Cassette Spacer
Notched polycarbonate spacers setting precise gap widths for uniform vertical PAGE gel polymerization. Specific to non-detection electrophoresis, HTS 9027.90.54.00.
Buffer Circulation Pump Adapter
Plastic adapter connecting external peristaltic pumps to electrophoresis tank ports for continuous buffer flow. For basic systems, HTS 9027.90.54.00.
Multi-Channel Loading Reservoir Insert
Disposable polystyrene insert creating 8-12 sample channels for robotic pipetting into gels. Consumable for non-optical units.