Borosilicate Glass Tubing 10mm OD
Unworked borosilicate glass tubing with 10mm outer diameter, supplied in straight lengths without any drawing, cutting to final shape, or annealing post-processing. Classified under HTS 7002.39.00.90 as unworked glass tubes, other than those of fused quartz or other fused silica. Ideal for laboratory apparatus fabrication.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If drawn or tooled to precise dimensions post-annealing
Chapter notes exclude pre-annealing processes, but post-annealing drawing makes it 'worked' glass.
If fused quartz/silica composition
Fused quartz tubes classified separately from other glass types throughout Chapter 70.
If imported as articles of other glass
Heading 7020 covers other glass articles not specified elsewhere, if assembled into finished products.
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Import Tips & Compliance
• Verify tubing meets unworked criteria per Chapter 70 notes - no post-annealing processes allowed
• Provide mill test certificates confirming borosilicate composition and dimensions for CBP review
• Avoid common pitfall of declaring cut-to-length pieces, which may shift to worked glass in 7002.32
Related Products under HTS 7002.39.00.90
Soda-Lime Glass Tubing for Lighting 8mm OD
Unworked soda-lime glass tubing, 8mm outer diameter, used in fluorescent lighting manufacture, delivered in continuous lengths. Falls under 7002.39.00.90 as other unworked glass tubes excluding fused silica types. No surface treatments or coatings applied.
Neutral Glass Tubing for Ampoules 12mm OD
Type I neutral borosilicate glass tubing, 12mm outer diameter, unworked, specifically for pharmaceutical ampoule production. Classified in 7002.39.00.90 as other unworked tubes; hydrolytic resistance meets pharmacopeia standards but no pharmaceutical processing done.
Soft Glass Tubing for Neon Signs 6mm OD
Low-melting-point soft soda glass tubing, 6mm OD, unworked condition for neon sign tube bending. HTS 7002.39.00.90 covers this as other unworked glass tubes; supplied in coils or straight lengths.
Precision Borosilicate Glass Tubing 16mm OD
High-precision borosilicate tubing with 16mm outer diameter and tight wall thickness tolerance, unworked status maintained through annealing only. 7002.39.00.90 classification for other unworked tubes used in scientific instrument manufacture.
Pharma-Grade Tubing for Syringe Barrels
USP Type I borosilicate glass tubing for hypodermic syringe barrel production, supplied unworked in 14mm OD. Meets 7002.39.00.90 as other unworked glass tubes; no forming or fire-polishing performed.
Decorative Glass Lampworking Tubing
Colored soda-lime glass tubing in assorted diameters for glassblowing/lampworking art, unworked condition. 7002.39.00.90 covers these other unworked tubes; pigments added during melt.