Chromatograph Column Assembly
Replacement column assembly for gas chromatographs used in chemical analysis of samples. It is a part specifically designed for instruments of subheading 9027.30 (spectrometers and similar apparatus). Classified under 9027.90.56 as an electrical part for these analytical instruments.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in industrial gas separation equipment
Parts for compressors or industrial chromatography pumps fall under Chapter 84 machinery parts.
If for non-electrical chromatographs
Non-electrical parts of chromatographs classified separately from electrical components.
If not principally for listed subheadings
General parts unsuitable solely for specific chapter 90 instruments go to 9033.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify compatibility with specific instrument models from subheadings 9027.20-9027.89 to avoid misclassification
• Include detailed technical specs and manufacturer certifications in import docs for customs clearance
• Check for hazardous material restrictions if columns contain silica or other substances
Related Products under HTS 9027.90.56
Spectrophotometer Detector Module
Photodiode detector module for UV-Vis spectrophotometers measuring light absorption in chemical analysis. Designed exclusively for instruments of 9027.50 (instruments for physical/chemical analysis). Falls under 9027.90.56 as an electrical accessory.
Gas Analyzer Sensor Head
Electrochemical sensor head replacement for gas analysis apparatus measuring pollutants or emissions. Compatible with instruments of 9027.81 (gas/smoke analysis). Classified in 9027.90.56 for electrical parts of these analyzers.
Refractometer Prism Assembly
Optical prism and electrical readout assembly for refractometers measuring liquid concentrations. Part for instruments of 9027.20 (chromatographs, refractometers). Electrical component qualifies for 9027.90.56.
Microtome Cryostat Control Board
Electronic control board for maintaining temperature in microtome cryostats used in sample sectioning. Accessory for instruments of 9027.89 (microtomes and similar). Electrical part under 9027.90.56.
Polarimeter Optical Cell Holder
Motorized electrical holder for sample cells in polarimeters measuring optical rotation. Designed for 9027.20 polarimeters. Electrical accessory classified in 9027.90.56.
Viscosity Tester Probe
Electrical sensing probe for rotational viscometers measuring fluid viscosity in labs. Part for 9027.50 viscosity instruments. Qualifies under 9027.90.56 electrical parts.