Laboratory Test Tube Cork Plug
Cylindrical, non-tapered agglomerated cork plug for lab test tubes, length > diameter. Directly under HTS 4504.10.45.00 as specified agglomerated cork stopper. Chemically inert for experimental use.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If part of glass labware set
Lab glass articles with fittings classify in Chapter 70.
If for use in lab instruments
Parts of lab microscopes or analyzers shift to 9027.
If natural cork variety
Natural cork plugs use earlier Chapter 45 headings.
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Import Tips & Compliance
• Include chemical resistance test data
• Avoid mixing with rubber; pure cork only
• Declare HTS precisely to leverage lab exemptions
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