Fluorescent Glass Microspheres for Tracers
Polystyrene-core glass microspheres (10-50 microns) with fluorescent doping for flow visualization in scientific research. HTS 7018.20.00.00 covers these ≤1 mm glass microspheres, excluding imitation semiprecious stones.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imitating precious stones
Fluorescent microspheres marketed as imitation gemstones classify under beads rather than functional microspheres.
If diagnostic laboratory reagents
Microspheres prepared as finished diagnostic reagents fall under laboratory chemicals.
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Import Tips & Compliance
• Specify doping agents in composition certificate; ensure particle size distribution certification; avoid packaging resembling consumer beads
Related Products under HTS 7018.20.00.00
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Borosilicate Hollow Glass Microspheres Type A
Hollow borosilicate glass microspheres averaging 30-120 microns in diameter serve as lightweight fillers in syntactic foams for aerospace composites. Classified under HTS 7018.20.00.00 as glass microspheres ≤1 mm, excluding imitation pearls or lamp-worked ornaments.
Lead Glass Microspheres for Radiation Shielding
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Conductive Silver-Coated Glass Microspheres
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High-Index Glass Microspheres for Reflective Paint
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Silica Glass Microspheres (Fused Quartz)
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