Nhóm 9027:  Instruments and apparatus for physical orchemical analysis （for example

Phần 90

OPTICAL, PHOTOGRAPHIC, CINEMATO- GRAPHIC, MEASURING,CHECKING, PRECISION, MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; MUSICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF

Chương 90

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

9027

 Instruments and apparatus for physical orchemical analysis （for example

9027100010

Gas detectors for continuous operations (used to detect the chemicals with export control or organic compounds (containing phosphorus, sulfur, fluorine or chlorine, with the concentration lower than .3mg/m3), or detect the activity of inhibited cholinest

9027100090

Other gas or smog analyzers

9027201100

Gas chromatographs instruments

9027201200

Liquid chromatographs instruments

9027201900

Other chromatographs instruments

9027202000

Electrophoresis instruments

9027300010

9027300020

9027300030

9027300090

9027501000

9027509010

9027509090

9027801100

Integrated circuit belium spectra leak detectors

9027801200

Mass spectrograph

9027801910

UF6 mass spectrometers/ion sources (capable of obtaining feed, products or tailing sample spectrometers from UF6 air streams)

9027801920

Measuring ion mass spectrometers of more than 23 mass units (resolution: higher than 2/23)

9027801990

Other mass spectrometers

9027809100

Exposure meters

9027809910

9027809990

9027900000

Microtomes; parts and accessories of instruments and apparatus for physical or chemical analysis