# HTS 9027: Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof: https://geopax.app/tariffs/catalog/90/9027 Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=9027). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator ## 9027: Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof: | Code | Description | General | Special | Column 2 | Units | | --- | --- | --- | --- | --- | --- | | 9027 | Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof: | | | | | | 9027.10 | Gas or smoke analysis apparatus: | | | | | | 9027.10.20.00 | Electrical | Free | | 40% | kg, No. | | | Other: | | | | | | 9027.10.40.00 | Optical instruments and apparatus | Free | | 50% | kg | | 9027.10.60.00 | Other | Free | | 40% | kg | | 9027.20 | Chromatographs and electrophoresis instruments: | | | | | | 9027.20.50 | Electrical | Free | | 40% | | | 9027.20.50.30 | Electrophoresis instruments | Free | | 40% | No. | | 9027.20.50.50 | Gas chromatographs | Free | | 40% | No. | | 9027.20.50.60 | Liquid chromatographs | Free | | 40% | No. | | 9027.20.50.80 | Other | Free | | 40% | No. | | 9027.20.80 | Other | Free | | 40% | | | 9027.20.80.30 | Gas chromatographs | Free | | 40% | No. | | 9027.20.80.60 | Liquid chromatographs | Free | | 40% | No. | | 9027.20.80.90 | Other | Free | | 40% | No. | | 9027.30 | Spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared): | | | | | | 9027.30.40 | Electrical | Free | | 40% | | | 9027.30.40.40 | Spectrophotometers | Free | | 40% | No. | | 9027.30.40.80 | Other | Free | | 40% | No. | | 9027.30.80 | Other | Free | | 50% | | | 9027.30.80.20 | Spectroscopes | Free | | 50% | No. | | 9027.30.80.80 | Other | Free | | 50% | No. | | 9027.50 | Other instruments and apparatus using optical radiations (ultraviolet, visible, infrared): | | | | | | 9027.50.10.00 | Exposure meters | 1.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 27.5% | No. | | | Other: | | | | | | 9027.50.40 | Electrical | Free | | 40% | | | 9027.50.40.15 | Chemical analysis instruments and apparatus | Free | | 40% | No. | | 9027.50.40.20 | Thermal analysis instruments and apparatus | Free | | 40% | No. | | 9027.50.40.50 | Photometers | Free | | 40% | No. | | 9027.50.40.60 | Other | Free | | 40% | No. | | 9027.50.80 | Other | Free | | 50% | | | 9027.50.80.15 | Chemical analysis instruments and apparatus | Free | | 50% | No. | | 9027.50.80.20 | Thermal analysis instruments and apparatus | Free | | 50% | No. | | 9027.50.80.60 | Other | Free | | 50% | No. | | | Other instruments and apparatus: | | | | | | 9027.81.00.00 | Mass spectrometers | Free | | 40% | No. | | 9027.89 | Other: | | | | | | 9027.89.25.00 | Nuclear magnetic resonance instruments | Free | | 40% | No. | | | Other: | | | | | | 9027.89.45 | Electrical | Free | | 40% | | | 9027.89.45.30 | Chemical analysis instruments and apparatus | Free | | 40% | kg | | 9027.89.45.60 | Physical analysis instruments and apparatus | Free | | 40% | kg | | 9027.89.45.90 | Other | Free | | 40% | kg | | 9027.89.80 | Other | Free | | 40% | | | 9027.89.80.30 | Chemical analysis instruments and apparatus | Free | | 40% | kg | | 9027.89.80.60 | Physical analysis instruments and apparatus | Free | | 40% | kg | | 9027.89.80.90 | Other | Free | | 40% | kg | | 9027.90 | Microtomes; parts and accessories: | | | | | | 9027.90.20.00 | Microtomes | Free | | 40% | No. | | | Parts and accessories: | | | | | | | Of electrical instruments and apparatus: | | | | | | 9027.90.45.00 | Printed circuit assemblies for the goods of subheading 9027.81 or 9027.89 | Free | | 40% | No. | | | Other: | | | | | | 9027.90.54.00 | Of electrophoresis instruments not incorporating an optical or other measuring device | Free | | 40% | kg | | 9027.90.56 | Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 | Free | | 40% | | | 9027.90.56.25 | Of articles of subheading 9027.20.50 | Free | | 40% | kg | | 9027.90.56.30 | Of articles of subheading 9027.30.40 | Free | | 40% | kg | | 9027.90.56.40 | Of articles of subheading 9027.50.10 | Free | | 40% | kg | | 9027.90.56.50 | Of articles of subheading 9027.50.40 | Free | | 40% | kg | | 9027.90.56.95 | Other | Free | | 40% | kg | | 9027.90.59 | Other | Free | | 40% | | | 9027.90.59.10 | Of articles of subheading 9027.10.20 | Free | | 40% | kg | | 9027.90.59.95 | Other | Free | | 40% | kg | | | Other: | | | | | | | Of optical instruments and apparatus: | | | | | | 9027.90.64.00 | Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 | Free | | 50% | kg | | 9027.90.68.00 | Other | Free | | 50% | kg | | | Other: | | | | | | 9027.90.84.00 | Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 | Free | | 40% | kg | | 9027.90.88.00 | Other | Free | | 40% | kg |