Product classification
HS code for Mass spectrometer: 9027.81
Instruments and apparatus, for physical or chemical analysis, for measuring or checking viscosity, porosity, expansion, surface tension or quantities of heat, sound or light, mass spectrometers.
Classification of mass spectrometer under HS 9027.81
Mass spectrometers are classified under HS code 9027.81. Heading 9027 covers instruments and apparatus for physical or chemical analysis, such as polarimeters, refractometers, and spectrometers. The classification is based on the functional principle of the device: analyzing the composition of substances by measuring the mass-to-charge ratio of ions. Subheading 9027.81 was specifically created to house mass spectrometers, which are distinct from optical spectrometers (which use light) or other analytical tools. These instruments are used in laboratories for identifying chemical structures and quantifying components in a sample. The classification remains here regardless of whether the spectrometer is a standalone unit or integrated into a larger system like a gas chromatograph, provided the mass spectrometry function is the primary analytical component. The precision and scientific nature of the device place it firmly within Chapter 90.
- Covers
- Gas chromatography-mass spectrometers (GC-MS)
- Liquid chromatography-mass spectrometers (LC-MS)
- Inductively coupled plasma mass spectrometers (ICP-MS)
- Time-of-flight (TOF) mass spectrometers
- Quadrupole mass spectrometers
- Matrix-assisted laser desorption/ionization (MALDI) systems
- Also under 9027.81
- Agilent 6470 Triple Quadrupole MS
- Waters Xevo TQ-S MS
- Anton Paar Rheometer
- Micromeritics ASAP 2020 Plus
- TA Instruments DSC 250
Codes often confused with 9027.81
Common mistake. These devices are often confused with 9027.50, which covers instruments using optical radiations (UV, visible, IR). While both are spectrometers, mass spectrometers do not rely on the light spectrum for analysis. They are also occasionally misclassified under 9030.89 if mistaken for general electrical measuring instruments.
Top exporters and importers of HS 902781 (the code used for mass spectrometer), 2025
In 2025, the largest exporter of HS 902781 (the code used for mass spectrometer) in UN Comtrade data was Germany, with 27% of world exports; the largest importer in UN Comtrade data was China, with 33% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 902781, not only mass spectrometer.
Top exporters 2025 · share of world exports
- 1 Germany $1.1B 27% of world exports
- 2 Singapore $1.1B 27% of world exports
- 3 United States $582M 14% of world exports
World total: $4.1B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $1.4B 33% of world imports
- 2 United States $560M 13% of world imports
- 3 Germany $396M 9.1% of world imports
World total: $4.4B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for mass spectrometer
Brazil classifies mass spectrometer under NCM 9027.81.00: HS 9027.81 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about mass spectrometer
What is the HS code for Mass spectrometer?
The HS code for Mass spectrometer is 902781 (Instruments and apparatus; for physical or chemical analysis, for measuring or checking viscosity, porosity, expansion, surface tension or quantities of heat, sound or light, mass spectrometers). The specific HS code for mass spectrometers is 9027.81.
How do I classify Mass spectrometer for customs?
Mass spectrometer is classified under HS code 902781 — Instruments and apparatus; for physical or chemical analysis, for measuring or checking viscosity, porosity, expansion, surface tension or quantities of heat, sound or light, mass spectrometers. This is a 6-digit subheading level code.
Does this include portable mass spectrometers?
Yes, both laboratory-grade and portable or handheld mass spectrometers are classified under 9027.81 as long as they function on the mass-to-charge ratio principle.
Which countries are the top exporters of mass spectrometer (HS 902781)?
In 2025, the top exporters of HS 902781 (the code used for mass spectrometer) in UN Comtrade data were Germany ($1.1B, 27% of world exports), Singapore ($1.1B) and the United States ($582M). World exports came to about $4.1B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of mass spectrometer (HS 902781)?
In 2025, the top importers of HS 902781 (the code used for mass spectrometer) in UN Comtrade data were China ($1.4B, 33% of world imports), the United States ($560M) and Germany ($396M). World imports came to about $4.4B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Mass spectrometer the same in all countries?
The base HS code 902781 for Mass spectrometer is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for mass spectrometer in Brazil?
In Brazil, mass spectrometer (HS 902781) is classified under NCM 9027.81.00.