| 90271000 | Other instruments or apparatus: Gas or smoke analysis apparatus |
| 90272000 | Other instruments or apparatus: Chromatographs and electrophoresis instruments |
| 90273010 | Spectrometers, spectrophotometers and spectrographs using optical radiations (UV, visible, IR): Spectrometers |
| 90273020 | Spectrometers, spectrophotometers and spectrographs using optical radiations (UV, visible, IR): Spectrophotometers |
| 90273090 | Spectrometers, spectrophotometers and spectrographs using optical radiations (UV, visible, IR): Other |
| 90274000 | Omitted |
| 90275010 | Other instruments and apparatus using optical radiations (UV, visible, IR): Photometers |
| 90275020 | Other instruments and apparatus using optical radiations (UV, visible, IR): Refractometers |
| 90275030 | Other instruments and apparatus using optical radiations (UV, visible, IR): Polarimeters |
| 90275090 | Other instruments and apparatus using optical radiations (UV, visible, IR): Other |
| 90278010 | Other instruments and apparatus: Viscometers |
| 90278020 | Other instruments and apparatus: Calorimeters |
| 90278030 | Other instruments and apparatus: Instruments and apparatus for measuring the surface or interfocial tension of liquids. |
| 90278040 | Other instruments and apparatus: Nuclear magnetic resonance instruments |
| 90278090 | Other instruments and apparatus: Other |
| 90279010 | Microtomes; parts and accessories: Microtomes, including parts and accusscries thereof |
| 90279020 | Microtomes; parts and accessories: Printed circuit assemblies for the goods of sub- heading 9027 80 |
| 90279090 | Microtomes; parts and accessories: Other |