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902750Chapter 90

Other instruments and apparatus using optical radiation (UV, visible, IR)

Description

Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes : Other instruments and apparatus using optical radiation (UV, visible, IR)

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