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 12 Microscopes other than optical microscopes; diffraction apparatus. 90 12 10 90 12 10 00 Commodity Code Description 90 12 10 00 00 - Microscopes other than optical microscopes; diffraction apparatus 90 12 90 00 00 - Parts and accessories