Analysis
HTS 9027.81.00 covers mass spectrometers under heading 9027 (instruments and apparatus for physical or chemical analysis (for example, polarimeters…).
Within this group the rate runs from duty-free to 1.2%. Compared with 9027.50.10 (other instruments and apparatus using optical radiations…), which pays 1.2%, a misclassification either way moves the duty by 1.2 percentage points.
Goods from countries without normal trade relations pay the column 2 rate of 40% instead of nothing, so origin decides between free entry and a 40% duty.
The normal trade relations rate here is zero, shared by about 73% of the 296 tariff lines in chapter 90, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.
Census statistics map these goods to NAICS 334516 (Analytical Laboratory Instrument Manufacturing), an industry of 652 US establishments employing 50,576 people. That concordance is how imports of this line are compared with US output.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 9027.10.20 | Gas or smoke analysis apparatus: electrical | Free |
| 9027.10.40 | Optical instruments and apparatus | Free |
| 9027.10.60 | Other: other | Free |
| 9027.20.50 | Chromatographs and electrophoresis instruments: electrical | Free |
| 9027.20.80 | Chromatographs and electrophoresis instruments: other | Free |
| 9027.30.40 | Spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared): electrical | Free |
| 9027.30.80 | Spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared): other | Free |
| 9027.50.10 | Other instruments and apparatus using optical radiations (ultraviolet, visible, infrared): exposure meters | 1.2% |
| 9027.50.40 | Other: electrical | Free |
| 9027.50.80 | Other: other | Free |
| 9027.89.25 | Nuclear magnetic resonance instruments | Free |
| 9027.89.45 | Other: electrical | Free |
| 9027.89.80 | Other: other | Free |
| 9027.90.20 | Microtomes; parts and accessories: microtomes | Free |
| 9027.90.45 | Printed circuit assemblies for the goods of subheading 9027.81 or 9027.89 | Free |
| 9027.90.54 | Of electrophoresis instruments not incorporating an optical or other measuring device | Free |
| 9027.90.56 | Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 | Free |
| 9027.90.59 | Other: other | Free |
| 9027.90.64 | Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 | Free |
| 9027.90.68 | Of optical instruments and apparatus: other | Free |
| 9027.90.84 | Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 | Free |
| 9027.90.88 | Other: other | Free |