HS Codes - 90: Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof:

Optical fibers and optical fiber bundles; optical fiber cables other than those of heading 8544; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked:

Sheets and plates of polarizing material

Spectacle lenses of glass

Other:

Objective lenses and parts and accessories thereof:

Other

Other:

Frames and mountings:

Of other materials

Spectacles, goggles and the like, corrective, protective or other:

Other

Binoculars

Parts and accessories (including mountings):

Cameras specially designed for underwater use, for aerial survey, or for medical or surgical examination of internal organs; comparison cameras for forensic or criminological purposes

Other cameras:

Other:

Discharge lamp ("electronic") flashlight apparatus

Parts and accessories:

Cinematographic cameras and projectors, whether or not incorporating sound recording or reproducing apparatus; parts and accessories thereof:

Projectors:

For cameras:

Image projectors, other than cinematographic; photographic (other than cinematographic) enlargers and reducers; parts and accessories thereof:

Parts and accessories:

Apparatus and equipment for automatically developing photographic (including cinematographic) film or paper in rolls or for automatically exposing developed film to rolls of photographic paper

Projection screens

Compound optical microscopes, including those for photomicrography, cinemicrography or microprojection; parts and accessories thereof:

Other microscopes, for photomicrography, cinemicrography or microprojection:

Parts and accessories

Microscopes other than optical microscopes; diffraction apparatus

Lasers, other than laser diodes; other optical appliances and instruments, not specified or included elsewhere in this chapter:

Lasers, other than laser diodes

Parts and accessories:

Direction finding compasses:

Other instruments and appliances:

Surveying (including photogrammetrical surveying), hydrographic, oceanographic, hydrological, meteorological or geophysical instruments and appliances, excluding compasses; rangefinders; parts and accessories thereof:

Theodolites and tachymeters (tacheometers):

Photogrammetrical surveying instruments and appliances:

Parts and accessories

Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, calipers), not specified or included elsewhere in this chapter; parts and accessories thereof:

Other drawing, marking-out or mathematical calculating instruments:

Other instruments

Instruments and appliances used in medical, surgical, dental or veterinary sciences, including scintigraphic apparatus, other electro-medical apparatus and sight-testing instruments; parts and accessories thereof:

Electrocardiographs, and parts and accessories thereof:

Magnetic resonance imaging apparatus

Other:

Syringes, needles, catheters, cannulae and the like; parts and accessories thereof:

Tubular metal needles and needles for sutures and parts and accessories thereof

Other instruments and appliances, used in dental sciences, and parts and accessories thereof:

Other:

Other instruments and appliances and parts and accessories thereof:

Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; parts and accessories thereof:

Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof:

Orthopedic or fracture appliances, and parts and accessories thereof

Artificial teeth and parts and accessories thereof:

Other artificial parts of the body and parts and accessories thereof:

Other

Pacemakers for stimulating heart muscles, excluding parts and accessories thereof

Apparatus based on the use of X-rays or of alpha, beta, gamma or other ionizing radiations, 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 like; parts and accessories thereof:

Computed tomography apparatus

Other, for medical, surgical or veterinary uses

Apparatus based on the use of alpha, beta, gamma or other ionizing radiations, whether or not for medical, surgical, dental or veterinary uses, including radiography or radiotherapy apparatus:

For other uses:

Other, including parts and accessories:

Machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics), and parts and accessories thereof:

Other machines and appliances

Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments; parts and accessories thereof:

Liquid-filled, for direct reading:

Other instruments:

For measuring or checking the flow or level of liquids:

Other instruments and apparatus:

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; parts and accessories thereof:

Chromatographs and electrophoresis instruments:

Other instruments and apparatus using optical radiations (ultraviolet, visible, infrared):

Mass spectrometers

Microtomes; parts and accessories:

Gas meters

Electricity meters

Revolution counters, production counters, taximeters, odometers, pedometers and the like; speedometers and tachometers, other than those of heading 9014 or 9015; stroboscopes; parts and accessories thereof:

Speedometers and tachometers; stroboscopes:

Oscilloscopes, spectrum analyzers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of heading 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, X-ray, cosmic or other ionizing radiations; parts and accessories thereof:​

Oscilloscopes and oscillographs:

Multimeters, without a recording device

Other, without a recording device:

Other instruments and apparatus, specially designed for telecommunications (for example, cross-talk meters, gain measuring instruments, distortion factor meters, psophometers)

For measuring or checking semiconductor wafers or devices (including integrated circuits)

Other

Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof:

Test benches

For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits)

Other instruments, appliances and machines:

Automatic regulating or controlling instruments and apparatus; parts and accessories thereof:

Manostats

Hydraulic and pneumatic

Parts and accessories: