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Section XVIII — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof

Chapter 90 — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof

Heading 9027 — 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.

National subdivision 9027.8 — Other instruments and apparatus

Subheading

9027.81 Mass spectrometers

Common commodities

Quadrupole time-of-flight mass spectrometerIon trap mass analyzer for isotopic identificationTOF MS system for molecular weight determinationICP-MS equipment for elemental analysisMass spec instrument for peptide fragmentationHigh resolution quadrupole mass spectrometerTime-of-flight mass spectrometry systemIsotope ratio mass spectrometer for stable isotopesQuadrupole ion trap mass analyzerMass spectrometer for biomarker discovery

HS codes

Code	Description	Taxes
9027.81.00	Mass spectrometers	Customs TaxCID, PAL, SSCL, VAT