Quartz Glass Tubes 150mm for Optical Use
Fused quartz glass tubes, 150mm long, unworked, intended for fabrication into optical components like lenses or fiber drawing. Included as 'glass' per Chapter Note on fused silica/quartz; classified in HTS 7002.39.0010 due to unworked state and length under 200mm, without any reflecting layers or shaping.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made from fused quartz but considered other unworked forms
Alternative for unworked fused quartz rods/tubes if not strictly 'tubes' per detailed definitions.
If further worked into glass envelopes for lamps
Processing into finished lamp parts shifts to 7016 for glassware used in electrical applications.
If processed into puffed mineral wool-like forms
Per 7019 note, non-compliant mineral wools from glass fall in 6806, but only if wool-structured.
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Import Tips & Compliance
• Include fused silica content certification; fused quartz is 'glass' under tariff notes but distinguish from synthetic crystals in 7104
• Measure length precisely including any flare—exceeding 200mm reclassifies; bundle in protective packaging to prevent accidental working
Related Products under HTS 7002.39.00.10
Borosilicate Glass Test Tubes 100mm
Unworked borosilicate glass tubes, 100mm in length, used primarily in laboratory settings for chemical experiments and sample containment. Classified under HTS 7002.39.0010 as unworked glass tubes not exceeding 200mm, without any drawing, cutting to shape beyond basic form, or other working processes post-annealing. They retain the character of raw glass tubes per Chapter 70 notes.
Soda-Lime Glass Tubes 80mm Industrial
Unworked soda-lime glass tubes measuring 80mm, used in manufacturing neon signs and general industrial tubing. HTS 7002.39.0010 applies as other unworked tubes ≤200mm; no cutting to shape or coatings that would deem them 'worked' under Chapter Notes (a)-(c).
Borosilicate Capillary Tubes 50mm
Precision unworked borosilicate glass capillary tubes, 50mm length, for medical and scientific applications like blood sampling. Falls under HTS 7002.39.0010 as unworked tubes ≤200mm; thin walls but no further processing like sealing or etching.
Fused Silica Tubes 120mm Semiconductor Grade
High-purity fused silica glass tubes, 120mm unworked, for semiconductor diffusion and wafer processing equipment. Classified HTS 7002.39.0010 per inclusion of fused silica as glass and tube form ≤200mm, unworked.
Neutral Glass Tubing 90mm Pharmaceutical
Type I neutral borosilicate glass tubes, 90mm unworked, raw material for ampoules and vials in pharma packaging. HTS 7002.39.0010 for short unworked tubes; no expansion or fire polishing.