Interference Bandpass Filter for Spectrometers
A thin-film mounted interference filter that transmits specific wavelengths for analytical spectrometers. It is a part under HTS 9002.20.80.00 for mounted optical elements in measuring instruments. Used in chemistry and physics labs for precise spectral analysis.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If part of complete spectrometer instruments
Spectrometer parts may classify with the apparatus in 9027 if principally dedicated.
If glass spheres or unworked glass elements
Certain glass optical elements without mounting go to Chapter 70.
If for measuring optical profiles
Measuring instruments' optical parts may fall under 9031 per Chapter notes.
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Import Tips & Compliance
• Submit spectral performance datasheets to verify optical working and instrument integration
• Avoid bulk shipments without mounting to prevent reclassification as raw materials
• Comply with ITAR if filters enable military-spec applications
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