G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
Description
G01N encompasses methods and apparatus for determining chemical and physical properties of materials through various analytical techniques. This subclass covers a broad range of measurement and testing technologies, including spectroscopy, chromatography, thermal analysis, microscopy, and electrochemical analysis. Applications span materials characterization, quality control, environmental monitoring, clinical diagnostics, and industrial process control across diverse materials including solids, liquids, gases, and biological samples. Adjacent classes handle more specialized domains such as G01R (electrical/magnetic measurements) and G01M (mechanical property testing), while G01N focuses on compositional and structural analysis rather than dimensional or mechanical measurements.
50 direct subcodes
Child Classifications
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- G01N 1/00 Sampling; Preparing specimens for investigation
- G01N 11/00 Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N 13/00 Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects (scanning-probe techniques or apparatus G01Q)
- G01N 15/00 Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N 17/00 Investigating resistance of materials to the weather, to corrosion, or to light
- G01N 19/00 Investigating materials by mechanical methods (G01N3/00 - G01N17/00 take precedence)
- G01N 21/00 Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light (G01N3/00 - G01N19/00 take precedence)
- G01N 22/00 Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more (G01N3/00 - G01N17/00, G01N24/00 take precedence)
- G01N 2201/00 Features of devices classified in G01N21/00
- G01N 2203/00 Investigating strength properties of solid materials by application of mechanical stress
- G01N 2223/00 Investigating materials by wave or particle radiation
- G01N 2291/00 Indexing codes associated with group G01N29/00
- G01N 23/00 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N 2333/00 Assays involving biological materials from specific organisms or of a specific nature
- G01N 24/00 Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N 2400/00 Assays, e.g. immunoassays or enzyme assays, involving carbohydrates
- G01N 2405/00 Assays, e.g. immunoassays or enzyme assays, involving lipids
- G01N 2407/00 Assays, e.g. immunoassays or enzyme assays, involving terpenes
- G01N 2410/00 Assays, e.g. immunoassays or enzyme assays, involving peptides of less than 20 animo acids
- G01N 2415/00 Assays, e.g. immunoassays or enzyme assays, involving penicillins or cephalosporins