Section 18 OPTICAL, PHOTOGRAPHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION , MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; M USICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 90 Optical, photographic, cinematographic measuring, checking, precision, medical o 90 18 Instruments and appliances used in medical, surgical, dental or veterinary scien 90 18 11 90 18 11 00 Commodity Code Description 90 18 11 00 00 -- Electro-cardiographs 90 18 12 00 00 -- Ultrasonic scanning apparatus 90 18 13 00 00 -- Magnetic resonance imaging apparatus 90 18 14 00 00 -- Scintigraphic apparatus 90 18 19 00 00 -- Other 90 18 20 00 00 - Ultra-violet or infra-red ray apparatus 90 18 31 00 00 -- Syringes, with or without needles 90 18 32 00 00 -- Tubular metal needles and needles for sutures 90 18 39 00 00 -- Other 90 18 41 00 00 -- Dental drill engines, wether or not combined on a single base with other dental equip 90 18 49 00 00 -- Other 90 18 50 00 00 - Other ophthalmic instruments and appliances 90 18 90 00 00 - Other instruments and appliances