Process Gas Chromatograph Interface Board
Interface PCB connecting process gas chromatographs (9027.89) to plant DCS systems, featuring analog I/O, Profibus, and oven temperature control circuits. Used in petrochemical refineries for continuous composition analysis. Classifies as printed circuit assembly for chemical analysis instruments.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other physical analysis instruments
Gas chromatographs sometimes classify under 9026 if not electrical.
If programmable logic controllers for process control
Industrial control boards principally for automation classify in 8537.
If parts of industrial laboratory ovens/furnaces
Oven control sections may classify with heating apparatus.
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Import Tips & Compliance
• Document hazardous area certifications (ATEX/IECEx) for refinery process environments
• Include process variable specifications (pressure, temperature ratings)
• Classify column oven assemblies separately under other 9027.90 provisions
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