35069900 under HS Code Others, 90153000 under HS Code Others, and 90275010 under HS Code 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 - OTHER INSTRUMENTS AND APPARATUS USING OPTICAL RADIATIONS (UV, VISIBLE, IR): PHOTOMETERS. were the top exported HS Codes by APM TECHNICA AG in 2023.