Gas Cell Assembly for FTIR Gas Analyzer
10cm pathlength gas cell with ZnSe windows and gold-coated mirrors for FTIR gas spectrometers under 9027.30.40. Enables quantitative infrared analysis of gas mixtures. Classified here as a critical optical/electrical part for covered instruments.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as standalone ZnSe optical windows
Optical elements of glass not dedicated to instruments classify by material.
If for non-gas phase FTIR instruments
Parts classification tracks the specific instrument subheading.
If marketed as general gas sampling equipment
Laboratory apparatus not principally chapter 90 parts go to heading 8419.
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Import Tips & Compliance
• Provide IR transmission spectra for window materials and pressure ratings
• Document volume, pathlength, and compatible FTIR models in commercial invoice
• Include material safety data for any internal coatings or window materials
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