Spectrophotometer Quartz Cuvette
Precision quartz cuvettes designed for use in UV-Vis spectrophotometers of subheading 9027.30 to hold liquid samples during absorbance measurements. Made from high-purity quartz for optical transparency in UV range, these cuvettes are essential accessories for accurate spectroscopic analysis. Classified under 9027.90.64.00 as parts of optical analysis instruments.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as general laboratory glassware without specific instrument designation
Quartz labware not dedicated to specific optical analyzers falls under laboratory glassware heading.
If disposable plastic cuvettes rather than quartz
Plastic cuvettes classified by material composition under other articles of plastics.
If parts for chromatographic instruments (9027.90) rather than spectrophotometers
Different parent instrument subheadings have separate parts classifications.
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Import Tips & Compliance
• Verify cuvette dimensions and material specs match exact spectrophotometer model to avoid misclassification as general labware
• Provide manufacturer specs confirming quartz purity >99.99% and UV transmission for optical instrument classification
• Include end-use declaration specifying pairing with 9027.30 spectrophotometers to prevent reclassification to heading 7017
Related Products under HTS 9027.90.64.00
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Sapphire prism assemblies for Abbe refractometers (9027.20) that measure refractive index through critical angle optics. These precision-ground prisms provide the optical interface for sample analysis in food, pharmaceutical, and chemical testing. Falls under 9027.90.64.00 as dedicated parts of optical refractometers.
Polarimeter Sample Cell
Glass sample cells with precise path lengths (10mm, 20mm, 50mm) for optical polarimeters (9027.50) measuring optical rotation. Features anti-reflective coatings and temperature control jackets for pharmaceutical sugar analysis. Classified as 9027.90.64.00 parts of optical polarimetry instruments.
Fluorometer Flow Cell
Quartz flow cells for fluorescence spectrophotometers (9027.30) with sub-micron path lengths for continuous sample analysis. Black-coated exteriors minimize stray light in sensitive fluorescence detection. 9027.90.64.00 classification for optical fluorometer accessories.
Colorimeter Calibration Filter Set
Certified colored glass filter sets for colorimeter (9027.30) wavelength and absorbance calibration per NIST standards. Filters at 436nm, 546nm, 660nm ensure instrument accuracy for water quality testing. Parts of optical analysis instruments under 9027.90.64.00.
Turbidimeter Light Shield Assembly
Black Delrin light shield assemblies for nephelometric turbidimeters (9027.30 optical type) preventing ambient light interference. Precision alignment features ensure LED light path integrity. Classified 9027.90.64.00 as optical instrument accessories.
Photometer Lamp Housing
Precision aluminum housings for tungsten-halogen lamps in clinical photometers (9027.30), featuring heat dissipation fins and optical alignment ports. Ensures stable light source for biochemical analysis. 9027.90.64.00 parts of optical analyzers.