HS code 9027.81: Other instruments and apparatus, mass spectrometers
Last updated
Key facts
- HS code
- 9027.81
- Covers
- Other instruments and apparatus, mass spectrometers
- Edition
- HS2022
- Duty in the United States
- See its 1 line
Summary
HS code 9027.81 covers other instruments and apparatus, mass spectrometers. It sits in heading 90.27 (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) in chapter 90 (optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof). Other goods of heading 90.27 are classified under 9027.10 (gas or smoke analysis apparatus), 9027.20 (chromatographs and electrophoresis instruments), 9027.30 (spectrometers, spectrophotometers and spectrographs using optical radiations (UV, visible, IR)), 9027.50 (other instruments and apparatus using optical radiations (UV, visible, IR)) or 2 others. National tariff lines under 9027.81 are live on border.bot for the United States (1 line, also used by 1 other country).
What this code covers
HS code 9027.81 covers other instruments and apparatus, mass spectrometers.
The legal text of the subheading is “Other instruments and apparatus: Mass spectrometers”, read under “Other instruments and apparatus”, in HS2022.
What it doesn’t cover
Other goods of heading 90.27 are classified under 9027.10 (gas or smoke analysis apparatus), 9027.20 (chromatographs and electrophoresis instruments), 9027.30 (spectrometers, spectrophotometers and spectrographs using optical radiations (UV, visible, IR)), 9027.50 (other instruments and apparatus using optical radiations (UV, visible, IR)) or 2 others.
- 9027.10Gas or smoke analysis apparatus
- 9027.20Chromatographs and electrophoresis instruments
- 9027.30Spectrometers, spectrophotometers and spectrographs using optical radiations (UV, visible, IR)
- 9027.50Other instruments and apparatus using optical radiations (UV, visible, IR)
- 9027.89Other instruments and apparatus: Other
- 9027.90Microtomes; parts and accessories
How it is structured
9027.81 is a six-digit subheading. Its first two digits, 90, are the chapter; the first four, 9027, are heading 90.27; the last two, 81, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Within the heading
- Other instruments and apparatus
- Subheading 9027.81
- Mass spectrometers
In other countries
National tariff lines under 9027.81 are live on border.bot for the United States (1 line, also used by 1 other country).
- United States1 line, used by 1 other country
Frequently asked questions
What does HS code 9027.81 cover?
HS code 9027.81 covers other instruments and apparatus, mass spectrometers.
Which heading and chapter is HS code 9027.81 in?
HS code 9027.81 is in heading 90.27 (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) in chapter 90 (optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof).
Where are goods of heading 90.27 classified when 9027.81 doesn’t fit?
Other goods of heading 90.27 are classified under 9027.10 (gas or smoke analysis apparatus), 9027.20 (chromatographs and electrophoresis instruments), 9027.30 (spectrometers, spectrophotometers and spectrographs using optical radiations (UV, visible, IR)), 9027.50 (other instruments and apparatus using optical radiations (UV, visible, IR)) or 2 others.
Which countries’ tariffs list national lines under HS code 9027.81?
National tariff lines under 9027.81 are live on border.bot for the United States (1 line, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.