HS code · 6-digit subheading
HS Code 9027.90 – Microtomes and parts and accessories thereof
HS code 9027.90 is the 6-digit subheading for microtomes and parts and accessories thereof. It is used for rotary microtomes, vibrating microtomes, cryostats (microtome type), ultramicrotomes and microtome blades.
What HS 9027.90 covers
This HS code specifically covers microtomes and their associated parts and accessories. Microtomes are precision instruments used in histology, pathology, and materials science to cut extremely thin sections of biological tissue or other materials for microscopic examination. They are indispensable in medical diagnostics, biomedical research, and quality control for various materials, enabling detailed structural analysis. Importers include hospitals, research laboratories, universities, and specialized material testing facilities worldwide. Exporters are typically manufacturers specializing in high-precision laboratory and medical equipment. Key aspects in trade include cutting precision, stability, ease of maintenance, and compatibility with various specimen types, all crucial for optimal sectioning and reliable research outcomes.
- Covers
- Rotary microtomes
- Vibrating microtomes
- Cryostats (microtome type)
- Ultramicrotomes
- Microtome blades
- Specimen clamps
- Embedding cassettes
- Blade holders
- Examples
- Leica RM2255 Rotary Microtome
- Thermo Scientific HM340E Microtome
- Sakura Accu-Cut SRM 200
- RMC Boeckeler PT-PC Ultramicrotome
Codes often confused with 9027.90
Common mistake. Can be confused with other general laboratory cutting tools or even parts of microscopes (9011) if not clearly identified as specific to microtomy.
Top exporters and importers of HS code 902790, 2025
In 2025, the largest exporter of HS code 902790 in UN Comtrade data was the United States, with 16% of world exports; the largest importer in UN Comtrade data was the United States, with 15% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 United States $2.5B 16% of world exports
- 2 Japan $2.4B 16% of world exports
- 3 Germany $2.2B 14% of world exports
World total: $15.8B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $2.4B 15% of world imports
- 2 Germany $1.5B 9.8% of world imports
- 3 China $1.3B 8.5% of world imports
World total: $15.4B 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 codes for 9027.90 4
Brazil splits HS 9027.90 into 4 NCM codes, Mercosur's 8-digit tariff lines.
- 9027.90.10 MicrotomesMicrótomos
- 9027.90.9 Parts and accessoriesPartes e acessórios Group
- 9027.90.91 Atomic emission spectrometer parts and accessoriesDe espectrômetros e espectrógrafos, de emissão atômica
- 9027.90.93 Parts and accessories of polarographsDe polarógrafos
- 9027.90.99 Other analysis instrument parts and accessoriesOutros
All Brazil NCM codes in heading 90.27 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 9027.90
What is HS code 902790?
HS code 902790 is a 6-digit subheading in the Harmonized System that covers: Microtomes and parts and accessories thereof. This HS code specifically covers microtomes and their associated parts and accessories. Microtomes are precision instruments used in histology, pathology, and materials science to cut extremely thin sections of biological tissue or other materials for microscopic examination. They are indispensable in medical diagnostics, biomedical research, and quality control for various materials, enabling detailed structural analysis. Importers include hospitals, research laboratories, universities, and specialized material testing facilities worldwide. Exporters are typically manufacturers specializing in high-precision laboratory and medical equipment. Key aspects in trade include cutting precision, stability, ease of maintenance, and compatibility with various specimen types, all crucial for optimal sectioning and reliable research outcomes.
What products fall under HS code 902790?
Rotary microtomes, Vibrating microtomes, Cryostats (microtome type), Ultramicrotomes, Microtome blades, Specimen clamps, Embedding cassettes, Blade holders
What are common misclassifications for HS code 902790?
Can be confused with other general laboratory cutting tools or even parts of microscopes (9011) if not clearly identified as specific to microtomy.
Which countries are the top exporters of goods under HS code 902790?
In 2025, the top exporters of HS code 902790 in UN Comtrade data were the United States ($2.5B, 16% of world exports), Japan ($2.4B) and Germany ($2.2B). World exports came to about $15.8B, 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 goods under HS code 902790?
In 2025, the top importers of HS code 902790 in UN Comtrade data were the United States ($2.4B, 15% of world imports), Germany ($1.5B) and China ($1.3B). World imports came to about $15.4B, 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.
How is HS code 902790 structured?
HS code 902790 is a 6-digit subheading under the Harmonized System. The first 2 digits (90) identify the chapter, digits 3-4 (27) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 902790?
Brazil splits HS code 902790 into 4 NCM codes: 9027.90.10 (Microtomes), 9027.90.91 (Atomic emission spectrometer parts and accessories), 9027.90.93 (Parts and accessories of polarographs), 9027.90.99 (Other analysis instrument parts and accessories). The first 6 digits of each match the HS code.