Tools specially designed to be used for the maintenance, checking, gauging or repair of instruments or apparatus admitted under subheading 9810.00.60
Articles entered for the use of any nonprofit institution, whether public or private, established for educational or scientific purposes: > Tools specially designed to be used for the maintenance, checking, gauging or repair of instruments or apparatus admitted under subheading 9810.00.60
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
Products classified under HTS 9810.00.67.00
Precision Caliper Calibration Tool
A specialized gauge designed specifically for verifying the accuracy of digital and vernier calipers used in laboratory instruments admitted under 9810.00.60. This tool features NIST-traceable standards and provides precise measurements to ensure caliper functionality within 0.001mm tolerance. It qualifies under 9810.00.67.00 as a maintenance tool for scientific apparatus used by nonprofit educational institutions.
Spectrophotometer Cuvette Cleaning Kit
Specialized cleaning tool set with ultrasonic cleaner and precision lint-free swabs designed exclusively for maintaining quartz cuvettes in UV-Vis spectrophotometers admitted under 9810.00.60. Prevents contamination that affects absorbance readings and ensures instrument accuracy. Qualifies as repair tool for scientific apparatus used by educational institutions.
Microscope Objective Lens Alignment Tool
Precision alignment jig and torque wrench set specifically engineered for centering and tensioning objective lenses on research microscopes admitted under 9810.00.60. Ensures parfocality and proper optical alignment critical for high-resolution imaging. Designed exclusively for institutional microscope maintenance.
HPLC Pump Seal Replacement Tool Kit
Specialized tool set including seal pullers, piston extractors, and alignment gauges designed exclusively for servicing high-pressure liquid chromatography pumps admitted under 9810.00.60. Prevents leaks and maintains pressure specifications up to 15,000 psi. Essential for analytical chemistry research maintenance.
Mass Spectrometer Vacuum Gauge Calibration Standard
Precision calibration artifact specifically designed for verifying ionization vacuum gauges in mass spectrometers admitted under 9810.00.60. Provides traceable standards from 10^-9 to 10^-3 Torr range. Essential for maintaining instrument vacuum system integrity in proteomics research.
Centrifuge Rotor Balancing Tool
Dynamic balancing instrument specifically designed for ultracentrifuge rotors admitted under 9810.00.60. Measures imbalance to 0.1 mg·mm and provides correction weights for rotors spinning up to 100,000 RPM. Prevents vibration damage in molecular biology research.
NMR Probe Tuning Tool Set
Specialized non-magnetic tool kit for tuning and matching RF probes in nuclear magnetic resonance spectrometers admitted under 9810.00.60. Includes ceramic screwdrivers and capacitance meters for 300-900 MHz frequencies. Essential for maintaining spectral resolution in chemical research.
Electrophoresis Gel Tank Alignment Gauge
Precision gauge for ensuring parallel plate alignment in agarose and polyacrylamide gel electrophoresis systems admitted under 9810.00.60. Maintains 0.1mm gap tolerance for consistent electric field uniformity. Critical for molecular biology protein separation.
Flow Cytometer Laser Alignment Tool
Specialized optical alignment tool for positioning excitation lasers in flow cytometers admitted under 9810.00.60. Provides 488nm/633nm beam overlap within 0.5μm tolerance for multi-parameter fluorescence detection. Essential for immunology research.
PCR Thermal Cycler Block Temperature Uniformity Tester
Multi-point thermocouple array specifically designed for verifying thermal block uniformity in PCR cyclers admitted under 9810.00.60. Tests ramp rates and hold accuracy to ±0.1°C across 96-well format. Critical for genomics research reproducibility.
X-Ray Crystallography Goniometer Zeroing Tool
Precision zeroing fixture for diffractometer goniometers in X-ray crystallography systems admitted under 9810.00.60. Ensures omega/phi axis alignment to 0.01° for protein structure determination. Essential for structural biology research.
Confocal Microscope Pinhole Alignment Tool
Specialized alignment tool for positioning Airy disk pinholes in confocal laser scanning microscopes admitted under 9810.00.60. Achieves sub-micron optical sectioning precision for 3D imaging. Critical for neuroscience research imaging.
Atomic Force Microscope Cantilever Cleaning Station
Plasma cleaning station specifically designed for AFM cantilevers and tips used in atomic force microscopes admitted under 9810.00.60. Removes contaminants without damaging 10nm tip radius. Essential for nanotechnology surface characterization.
Cryo-EM Specimen Grid Preparation Tool
Precision grid punch and tweezers set specifically designed for preparing vitreous ice samples for cryo-electron microscopes admitted under 9810.00.60. Achieves uniform 2-3μm ice thickness for single particle analysis. Critical for structural biology.