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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

60 lines US HTS, Harmonized Tariff Schedule of the United States – 2026 HTS Revision 20

CodeDescriptionUnitGeneralSpecialColumn 2Source
9027.10Gas or smoke analysis apparatusUSITC
9027.10.20.00Electricalkg, No.Free40%USITC
Other
9027.10.40.00Optical instruments and apparatuskgFree50%USITC
9027.10.60.00OtherkgFree40%USITC
9027.20Chromatographs and electrophoresis instrumentsUSITC
9027.20.50ElectricalFree40%USITC
9027.20.50.30Electrophoresis instrumentsNo.Free40%USITC
9027.20.50.50Gas chromatographsNo.Free40%USITC
9027.20.50.60Liquid chromatographsNo.Free40%USITC
9027.20.50.80OtherNo.Free40%USITC
9027.20.80OtherFree40%USITC
9027.20.80.30Gas chromatographsNo.Free40%USITC
9027.20.80.60Liquid chromatographsNo.Free40%USITC
9027.20.80.90OtherNo.Free40%USITC
9027.30Spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared)USITC
9027.30.40ElectricalFree40%USITC
9027.30.40.40SpectrophotometersNo.Free40%USITC
9027.30.40.80OtherNo.Free40%USITC
9027.30.80OtherFree50%USITC
9027.30.80.20SpectroscopesNo.Free50%USITC
9027.30.80.80OtherNo.Free50%USITC
9027.50Other instruments and apparatus using optical radiations (ultraviolet, visible, infrared)USITC
9027.50.10.00Exposure metersNo.1.2%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)27.5%USITC
Other
9027.50.40ElectricalFree40%USITC
9027.50.40.15Chemical analysis instruments and apparatusNo.Free40%USITC
9027.50.40.20Thermal analysis instruments and apparatusNo.Free40%USITC
9027.50.40.50PhotometersNo.Free40%USITC
9027.50.40.60OtherNo.Free40%USITC
9027.50.80OtherFree50%USITC
9027.50.80.15Chemical analysis instruments and apparatusNo.Free50%USITC
9027.50.80.20Thermal analysis instruments and apparatusNo.Free50%USITC
9027.50.80.60OtherNo.Free50%USITC
Other instruments and apparatus
9027.81.00.00Mass spectrometersNo.Free40%USITC
9027.89OtherUSITC
9027.89.25.00Nuclear magnetic resonance instrumentsNo.Free40%USITC
Other
9027.89.45ElectricalFree40%USITC
9027.89.45.30Chemical analysis instruments and apparatuskgFree40%USITC
9027.89.45.60Physical analysis instruments and apparatuskgFree40%USITC
9027.89.45.90OtherkgFree40%USITC
9027.89.80OtherFree40%USITC
9027.89.80.30Chemical analysis instruments and apparatuskgFree40%USITC
9027.89.80.60Physical analysis instruments and apparatuskgFree40%USITC
9027.89.80.90OtherkgFree40%USITC
9027.90Microtomes; parts and accessoriesUSITC
9027.90.20.00MicrotomesNo.Free40%USITC
Parts and accessories
Of electrical instruments and apparatus
9027.90.45.00Printed circuit assemblies for the goods of subheading 9027.81 or 9027.89No.Free40%USITC
Other
9027.90.54.00Of electrophoresis instruments not incorporating an optical or other measuring devicekgFree40%USITC
9027.90.56Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89Free40%USITC
9027.90.56.25Of articles of subheading 9027.20.50kgFree40%USITC
9027.90.56.30Of articles of subheading 9027.30.40kgFree40%USITC
9027.90.56.40Of articles of subheading 9027.50.10kgFree40%USITC
9027.90.56.50Of articles of subheading 9027.50.40kgFree40%USITC
9027.90.56.95OtherkgFree40%USITC
9027.90.59OtherFree40%USITC
9027.90.59.10Of articles of subheading 9027.10.20kgFree40%USITC
9027.90.59.95OtherkgFree40%USITC
Other
Of optical instruments and apparatus
9027.90.64.00Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89kgFree50%USITC
9027.90.68.00OtherkgFree50%USITC
Other
9027.90.84.00Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89kgFree40%USITC
9027.90.88.00OtherkgFree40%USITC

The table scrolls sideways.

Source: USITC, Harmonized Tariff Schedule of the United States – 2026 HTS Revision 20, effective 28 September 2026. Heading 9027 at USITC

Not shown: the additional duties of Chapter 99 (such as Section 301 and Section 232), anti-dumping and countervailing duties, quotas and the legal notes.

This page is general information, not legal advice and not a classification decision. Tariff texts and rates change: check the publisher's current schedule, and ask the customs authority for a binding ruling where the answer matters.

All headings of chapter 90: Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus