Section XVIII — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof
Heading
9027
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.
Common commodities
Laboratory polarimeterRefractometer for liquid analysisUltraviolet spectrometerGas emission analyzer apparatusPhotometric exposure meterViscosity measuring devicePorosity testing equipmentExpansion coefficient measurerHeat capacity calorimeterLab quality control viscosimeter