Chapter 90 optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof
Apparatus and equipment for photographic or cinematographic laboratories, not elsewhere specified in chapter 90; negatoscopes; projection screens
Apparatus based on the use of xrays or of alpha, beta, gamma or other ionising radiation, whether or not for medical, surgical, dental or veterinary uses, incl. radiography or radiotherapy apparatus, xray tubes and other xray generators, high tension generators, control panels and desks, screens, examination or treatment tables, chairs and the like
Regulating or controlling instruments and apparatus (excl. taps, cocks and valves of heading 8481)
Balances of a sensitivity of 50 mg or better, with or without weights
Binoculars, monoculars, astronomical and other optical telescopes, and mountings therefor; other astronomical instruments and mountings therefor (excl. instruments for radioastronomy and other instruments or apparatus specified elsewhere)
Cinematographic cameras and projectors, whether or not incorporating sound recording or reproducing apparatus (excl. video equipment)
Optical microscopes, incl. those for photomicrography, cinephotomicrography or microprojection (excl. binocular microscopes for ophthalmology and instruments, appliances and machines of heading 9031)
Direction finding compasses; other navigational instruments and appliances (excl. radio navigational equipment)
Drawing, markingout or mathematical calculating instruments, e.g. drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators; instruments for measuring length, for use in the hand, e.g. measuring rods and tapes, micrometres, callipers and other gauges, not elsewhere specified in chapter 90
Frames and mountings for spectacles, goggles or the like, and parts thereof, n.e.s.
Gas, liquid or electricity supply or production meters, incl. calibrating meters therefor
Hydrometers, areometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments
Image projectors, and photographic enlargers and reducers (excl. cinematographic)
Instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases, e.g. flow meters, level gauges, manometers, heat meters (excl. instruments and apparatus of heading 9014, 9015, 9028 or 9032)
Instruments and apparatus for physical or chemical analysis, e.g. 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, incl. exposure meters; microtomes
Instruments and appliances used in medical, surgical, dental or veterinary sciences, incl. scintigraphic apparatus, other electromedical apparatus and sighttesting instruments, n.e.s.
Instruments, apparatus and models designed for demonstrational purposes, e.g. in education or exhibitions, unsuitable for other uses (excl. ground flying trainers of heading 8805, collectors' pieces of heading 9705 and antiques of an age > 100 years of heading 9706)
Lasers (excl. laser diodes); other optical appliances and instruments, n.e.s. in chapter 90
Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus (excl. such elements of glass not optically worked)
Machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials, e.g. metals, wood, textiles, paper or plastics
Measuring or checking instruments, appliances and machines not elsewhere specified in chapter 90; profile projectors
Mechanotherapy appliances; massage apparatus; psychological aptitudetesting apparatus; ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus
Electron microscopes, proton microscopes and diffraction apparatus
Optical fibres and optical fibre bundles; optical fibre cables (excl. made up of individually sheathed fibres of heading 8544); sheets and plates of polarising material; lenses, incl. contact lenses, prisms, mirrors and other optical elements of any material, unmounted (excl. such elements of glass not optically worked)
Orthopaedic appliances, incl. crutches, surgical belts and trusses; splints and other fracture appliances; artificial parts of the body; hearing aids and other appliances which are worn or carried, or implanted in the body, to compensate for a defect or disability
Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities (excl. meters of heading 9028); instruments and apparatus for measuring or detecting alpha, beta, gamma, xray, cosmic or other ionising radiations
Breathing appliances and gas masks, incl. parts and accessories (excl. protective masks having neither mechanical parts nor replaceable filters, and artificial respiration or other therapeutic respiration apparatus)
Parts and accessories for machines, appliances, instruments or other apparatus in chapter 90, specified neither in this chapter nor elsewhere
Photographic cameras, photographic flashlight apparatus and flashbulbs (excl. discharge lamps of heading 8539)
Revolution counters, production counters, taximeters, milometers, pedometers and the like (excl. gas, liquid and electricity meters); speed indicators and tachometers (excl. those of heading 9014 and 9015); stroboscopes
Spectacles, goggles and the like, corrective, protective or other (excl. spectacles for testing eyesight, contact lenses, spectacle lenses and frames and mountings for spectacles)
Surveying, incl. photogrammetrical surveying, hydrographic, oceanographic, hydrological, meteorological or geophysical instruments and appliances (excl. compasses); rangefinders