Product classification
HS code for Calorimeter: 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 calorimeter under HS 9027.81
A calorimeter is a scientific instrument used for measuring the heat of chemical reactions or physical changes, as well as heat capacity. It is classified under HS code 9027.81. This heading covers instruments and apparatus for physical or chemical analysis, specifically those designed for measuring or checking quantities of heat, sound, or light. The classification 9027.81 is precise for thermal analysis equipment. Calorimeters work by measuring the temperature change of a known mass of water or another substance within the device. Because these instruments are used for quantitative analysis of physical properties (thermal energy), they are grouped with other high-tech analytical tools in Chapter 90. The classification is determined by the device's analytical function rather than its electronic components or the specific industry in which it is used. This includes everything from basic educational models to advanced laboratory equipment used in thermodynamics and material science.
- Covers
- Bomb calorimeters (combustion analysis)
- Differential Scanning Calorimeters (DSC)
- Isothermal Titration Calorimeters (ITC)
- Reaction calorimeters for chemical engineering
- Adiabatic calorimeters
- Coffee-cup calorimeters for educational use
- Microcalorimeters
- 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. Calorimeters are frequently misclassified under HS code 9025.19, which covers thermometers and pyrometers. While both involve temperature, a thermometer measures the state of temperature, whereas a calorimeter measures the quantity of heat energy. Another common error is using HS code 9032.89 for automatic regulating instruments; however, if the device's primary function is measurement and analysis, 9027.81 is correct. It should also not be confused with 9027.50 (optical instruments).
Top exporters and importers of HS 902781 (the code used for calorimeter), 2025
In 2025, the largest exporter of HS 902781 (the code used for calorimeter) 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 calorimeter.
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 calorimeter
Brazil classifies calorimeter 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 calorimeter
What is the HS code for Calorimeter?
The HS code for Calorimeter 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 HS code for a calorimeter is 9027.81, covering instruments for measuring quantities of heat.
How do I classify Calorimeter for customs?
Calorimeter 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.
Is a Differential Scanning Calorimeter (DSC) under this code?
Yes, DSC instruments are specialized calorimeters used for thermal analysis and are classified under HS code 9027.81.
Which countries are the top exporters of calorimeter (HS 902781)?
In 2025, the top exporters of HS 902781 (the code used for calorimeter) 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 calorimeter (HS 902781)?
In 2025, the top importers of HS 902781 (the code used for calorimeter) 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 Calorimeter the same in all countries?
The base HS code 902781 for Calorimeter 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 calorimeter in Brazil?
In Brazil, calorimeter (HS 902781) is classified under NCM 9027.81.00.