HS CodesXVIII · Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof90 · Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof90239023Chapter 90Copy pageInstruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other usesDescriptionInstruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other usesSubheadings902300Instruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other usesWas this page helpful?YesNoPrevious9022Apparatus based on the use of X-rays or of alpha, beta, gamma or other ionising radiation, whether or not for medical, surgical, dental or veterinary uses, including radiography or radiotherapy apparatus, X-ray tubes and other X-ray generators, high tension generators, control panels and desks, screens, examination or treatment tables, chairs and the likeNextMachines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics)9024