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HSChapter 90
U.S. exports of optical spectrometers, spectrophotometers & spectrographs (uv, visible, infrared) (HS 902730) totaled $74.7M in July 2026.
Importers of Optical Spectrometers, Spectrophotometers & Spectrographs (UV, Visible, Infrared) paid $3.3M in duties in July 2026 — an effective duty rate of 11% on $29.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataSpectrometers and spectrophotometers operating in the ultraviolet, visible, and infrared ranges are essential instruments for materials characterization, pharmaceutical analysis, environmental monitoring, and semiconductor inspection. The US schedule separates electrical spectrometers and spectrographs (9027304040, 9027304080) from non-electrical spectroscopes and spectrographs (9027308020, 9027308080), with the electrical lines covering the vast majority of modern laboratory and inline instruments. Mexico is the leading US import source under this heading, with Germany and the United Kingdom also prominent — the latter reflecting the UK's strong optical-instrument manufacturing base. Raman spectrometers and Fourier-transform infrared (FTIR) analyzers are among the highest-value articles in this heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.1K shipments/mo
FTIR analyzers, which use infrared optical radiation for analysis, classify under 9027.30 as spectrometers using optical radiations. Raman spectrometers also use optical radiation (laser excitation and optical detection) and generally classify here as well. However, if a Raman system is integrated with a microscope as its primary function, classification under heading 9011 or 9012 may be argued; a binding ruling is recommended for high-value combination systems.
A spectrophotometer measures the intensity of light as a function of wavelength across a spectrum, classifying under 9027.30. A photometer measures total light intensity at a fixed wavelength or broadband, and classifies under heading 9027.50 (specifically the photometer subheading 9027504050). The key classification criterion is whether the instrument disperses radiation into its spectral components for measurement.
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Subheading 5 of 7 in heading 9027
Subheading 902730 · $45.3M of $617.5M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9027304040 | Spectrophotometers, Electrical | $25.9M | 5.21% | 44.42% | $1.4M |
| 9027304080 | Spectrometers and Spectrographs, Elec, NESOI | $14.7M | 10.48% | 96.67% | $1.5M |
| 9027308080 | Spectrometers & Spectrographs, Except Electrical | $4.5M | 8.90% | 86.97% | $399K |
| 9027308020 | Spectroscopes, Except Electrical | $154K | 10.13% | 92.15% | $16K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9027304080 | Spectrometers and Spectrographs, Elec, NESOI | $34.8M |
| 9027304040 | Spectrophotometers, Electrical | $26.2M |
| 9027308080 | Spectrometers & Spectrographs, Except Electrical | $10.8M |
| 9027308020 | Spectroscopes, Except Electrical | $3.0M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$45.3MYoY · Pro
Exports
$74.7MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
34.7% enters free of duty; the effective duty rate is 7.31%.