HS Code Heading 9027

9027.10.20 Electrical gas or smoke analysis apparatus 9027.10.40 Nonelectrical optical instruments and apparatus for gas or smoke analysis 9027.10.60 Nonelectrical gas or smoke analysis apparatus, other than optical instruments and apparatus 9027.20.50 Electrical chromatographs and electrical electrophoresis instruments 9027.20.80 Nonelectrical chromatographs 9027.30.40 Electrical spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared) 9027.30.80 Nonelectrical spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared) 9027.50.10 Exposure meters 9027.50.40 Electrical instruments and apparatus using optical radiations (ultraviolet, visible, infrared), nesi 9027.50.80 Nonelectrical instruments and apparatus using optical radiations (ultraviolet, visible, infrared), nesi 9027.80.25 Nuclear magnetic resonance instruments 9027.80.45 Electrical instruments and apparatus for physical or chemical analysis, measuring viscosity, checking heat, sound, light, etc., nesi 9027.80.80 Nonelectrical instruments and apparatus for physical or chemical analysis, measuring viscosity, checking heat, sound or light, nesi 9027.90.20 Microtomes 9027.90.45 Printed circuit assemblies for instruments and apparatus of subheading 9027.80 9027.90.54 Parts and accessories of electrical instruments and apparatus of subheading 9027.20, 9027.30, 9027.40, 9027.50 or 9027.80 9027.90.58 Parts and accessories of other electrical instruments and apparatus of heading 9027, nesoi 9027.90.64 Parts and accessories of nonelectrical optical instruments and apparatus of subheading 9027.20, 9027.30, 9027.40, 9027.50 or 9027.80 9027.90.68 Parts and accessories of nonelectrical optical instruments and apparatus of heading 9027, nesoi 9027.90.84 Parts and accessories of nonelectrical nonoptical instruments and apparatus of heading 9027.20, 9027.30, 9027.40, 9027.50 or 9027.80 9027.90.88 Parts and accessories of nonelectrical instruments and apparatus of heading 9027, nesoi