'902780' is a HS Commodity code, used for calculating trade tariffs.   On the GOV.UK website, we can see that heading '90' covers: "Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof"   Subheading '9027' covers: "Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instru