IPC Classification

Class code (prefix) Descriptions Number of results
G01N 1/00 Sampling; Preparing specimens for investigation
G01N 1/02 Devices for withdrawing samples
G01N 1/04 Devices for withdrawing samples in the solid state, e.g. by cutting
G01N 1/06 Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
G01N 1/08 Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
G01N 1/10 Devices for withdrawing samples in the liquid or fluent state
G01N 1/12 Dippers; Dredgers
G01N 1/14 Suction devices, e.g. pumps; Ejector devices
G01N 1/16 Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
G01N 1/18 Devices for withdrawing samples in the liquid or fluent state with provision for splitting samples into portions
G01N 1/20 Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
G01N 1/22 Devices for withdrawing samples in the gaseous state
G01N 1/24 Suction devices
G01N 1/26 Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
G01N 1/28 Preparing specimens for investigation
G01N 1/30 Staining; Impregnating
G01N 1/31 Apparatus therefor
G01N 1/32 Polishing; Etching
G01N 1/34 Purifying; Cleaning
G01N 1/36 Embedding or analogous mounting of samples
G01N 1/38 Diluting, dispersing or mixing samples
G01N 1/40 Concentrating samples
G01N 1/42 Low-temperature sample treatment, e.g. cryofixation
G01N 1/44 Sample treatment involving radiation, e.g. heat
G01N 3/00 Investigating strength properties of solid materials by application of mechanical stress
G01N 3/02 Investigating strength properties of solid materials by application of mechanical stress - Details
G01N 3/04 Chucks
G01N 3/06 Special adaptations of indicating or recording means
G01N 3/08 Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
G01N 3/10 Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
G01N 3/12 Pressure-testing
G01N 3/14 Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by spring tension
G01N 3/16 Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces applied through gearing
G01N 3/18 Performing tests at high or low temperatures
G01N 3/20 Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
G01N 3/22 Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
G01N 3/24 Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
G01N 3/26 Investigating twisting or coiling properties
G01N 3/28 Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning
G01N 3/30 Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force
G01N 3/31 Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force generated by a rotating fly-wheel
G01N 3/32 Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
G01N 3/34 Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
G01N 3/36 Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
G01N 3/38 Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
G01N 3/40 Investigating hardness or rebound hardness
G01N 3/42 Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
G01N 3/44 Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors being put under a minor load and a subsequent major load, i.e. Rockwell system
G01N 3/46 Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors performing a scratching movement
G01N 3/48 Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
G01N 3/50 Investigating hardness or rebound hardness by measuring rolling friction, e.g. by rocking pendulum
G01N 3/52 Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
G01N 3/54 Performing tests at high or low temperatures
G01N 3/56 Investigating resistance to wear or abrasion
G01N 3/58 Investigating machinability by cutting tools; Investigating the cutting ability of tools
G01N 3/60 Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
G01N 3/62 Manufacturing, calibrating, or repairing devices used in investigations covered by the preceding subgroups
G01N 3/303 Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force generated only by free-falling weight
G01N 3/307 Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force generated by pneumatic or hydraulic means
G01N 3/313 Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force generated by explosives
G01N 3/317 Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force generated by electromagnetic means
G01N 5/00 Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
G01N 5/02 Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
G01N 5/04 Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
G01N 7/00 Analysing materials by measuring the pressure or volume of a gas or vapour
G01N 7/02 Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder
G01N 7/04 Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder by absorption or adsorption alone
G01N 7/06 Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder by combustion alone
G01N 7/08 Analysing materials by measuring the pressure or volume of a gas or vapour by absorption, adsorption, or combustion of components and measurement of the change in pressure or volume of the remainder by combustion followed by absorption or adsorption of the combustion products
G01N 7/10 Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
G01N 7/12 Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference the diffusion being followed by combustion or catalytic oxidation
G01N 7/14 Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
G01N 7/16 Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by heating the material
G01N 7/18 Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by allowing the material to react
G01N 7/20 Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by allowing the material to react the reaction being fermentation
G01N 7/22 Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by allowing the material to react the reaction being fermentation of dough
G01N 9/00 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
G01N 9/02 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
G01N 9/04 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of fluids
G01N 9/06 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of fluids with continuous circulation through a pivotally-supported member
G01N 9/08 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring buoyant force of solid materials by weighing both in air and in a liquid
G01N 9/10 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
G01N 9/12 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
G01N 9/14 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers the body being built into a container
G01N 9/16 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers the body being pivoted
G01N 9/18 Special adaptations for indicating, recording, or control
G01N 9/20 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by balancing the weight of the bodies
G01N 9/22 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by balancing the weight of the bodies with continuous circulation of the fluid
G01N 9/24 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material
G01N 9/26 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
G01N 9/28 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences by measuring the blowing pressure of gas bubbles escaping from nozzles at different depths in a liquid
G01N 9/30 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by using centrifugal effects
G01N 9/32 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by using flow properties of fluids, e.g. flow through tubes or apertures
G01N 9/34 Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by using flow properties of fluids, e.g. flow through tubes or apertures by using elements moving through the fluid, e.g. vane
G01N 9/36 Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
G01N 11/00 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties
G01N 11/02 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material
G01N 11/04 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
G01N 11/06 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by timing the outflow of a known quantity
G01N 11/08 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
G01N 11/10 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by moving a body within the material
G01N 11/12 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring penetration of wedged gauges
G01N 11/14 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
G01N 11/16 Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring damping effect upon oscillatory body
G01N 13/00 Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
G01N 13/02 Investigating surface tension of liquids
G01N 13/04 Investigating osmotic effects
G01N 15/00 Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
G01N 15/02 Investigating particle size or size distribution
G01N 15/04 Investigating sedimentation of particle suspensions
G01N 15/05 Investigating sedimentation of particle suspensions in blood
G01N 15/06 Investigating concentration of particle suspensions
G01N 15/08 Investigating permeability, pore volume, or surface area of porous materials
G01N 15/10 Investigating individual particles
G01N 15/12 Coulter-counters
G01N 15/14 Electro-optical investigation
G01N 17/00 Investigating resistance of materials to the weather, to corrosion or to light
G01N 17/02 Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
G01N 17/04 Corrosion probes
G01N 19/00 Investigating materials by mechanical methods
G01N 19/02 Measuring coefficient of friction between materials
G01N 19/04 Measuring adhesive force between materials, e.g. of sealing tape, of coating
G01N 19/06 Investigating by removing material, e.g. spark-testing
G01N 19/08 Detecting presence of flaws or irregularities
G01N 19/10 Measuring moisture content, e.g. by measuring change in length of hygroscopic filament; Hygrometers
G01N 21/00 Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
G01N 21/01 Arrangements or apparatus for facilitating the optical investigation
G01N 21/03 Cuvette constructions
G01N 21/05 Flow-through cuvettes
G01N 21/07 Centrifugal type cuvettes
G01N 21/09 Cuvette constructions adapted to resist hostile environments or corrosive or abrasive materials
G01N 21/11 Filling or emptying of cuvettes
G01N 21/13 Moving of cuvettes or solid samples to or from the investigating station
G01N 21/15 Preventing contamination of the components of the optical system or obstruction of the light path
G01N 21/17 Systems in which incident light is modified in accordance with the properties of the material investigated
G01N 21/19 Dichroism
G01N 21/21 Polarisation-affecting properties
G01N 21/23 Bi-refringence
G01N 21/25 Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
G01N 21/27 Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
G01N 21/29 Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
G01N 21/31 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/33 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultra-violet light
G01N 21/35 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light
G01N 21/37 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light using pneumatic detection
G01N 21/39 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
G01N 21/41 Refractivity; Phase-affecting properties, e.g. optical path length
G01N 21/43 Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
G01N 21/45 Refractivity; Phase-affecting properties, e.g. optical path length using Schlieren methods
G01N 21/47 Scattering, i.e. diffuse reflection
G01N 21/49 Scattering, i.e. diffuse reflection within a body or fluid
G01N 21/51 Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
G01N 21/53 Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
G01N 21/55 Specular reflectivity
G01N 21/57 Measuring gloss
G01N 21/59 Transmissivity
G01N 21/61 Non-dispersive gas analysers
G01N 21/62 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
G01N 21/63 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
G01N 21/64 Fluorescence; Phosphorescence
G01N 21/65 Raman scattering
G01N 21/66 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
G01N 21/67 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
G01N 21/68 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using high frequency electric fields
G01N 21/69 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence specially adapted for fluids
G01N 21/70 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light mechanically excited, e.g. triboluminescence
G01N 21/71 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
G01N 21/72 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using flame burners
G01N 21/73 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
G01N 21/74 Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using flameless atomising, e.g. graphite furnaces
G01N 21/75 Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
G01N 21/76 Chemiluminescence; Bioluminescence
G01N 21/77 Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
G01N 21/78 Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
G01N 21/79 Photometric titration
G01N 21/80 Indicating pH value
G01N 21/81 Indicating humidity
G01N 21/82 Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a precipitate or turbidity
G01N 21/83 Turbidimetric titration
G01N 21/84 Systems specially adapted for particular applications
G01N 21/85 Investigating moving fluids or granular solids
G01N 21/86 Investigating moving sheets
G01N 21/87 Investigating jewels
G01N 21/88 Investigating the presence of flaws, defects or contamination
G01N 21/89 Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
G01N 21/90 Investigating the presence of flaws, defects or contamination in a container or its contents
G01N 21/91 Investigating the presence of flaws, defects or contamination using penetration of dyes, e.g. fluorescent ink
G01N 21/93 Detection standards; Calibrating
G01N 21/94 Investigating contamination, e.g. dust
G01N 21/95 Investigating the presence of flaws, defects or contamination characterised by the material or shape of the object to be examined
G01N 21/359 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light using near infra-red light
G01N 21/552 Attenuated total reflection
G01N 21/892 Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles characterised by the flaw, defect or object feature examined
G01N 21/894 Pinholes
G01N 21/896 Optical defects in or on transparent materials, e.g. distortion, surface flaws
G01N 21/898 Irregularities in textured or patterned surfaces, e.g. textiles, wood
G01N 21/952 Inspecting the exterior surface of cylindrical bodies or wires
G01N 21/954 Inspecting the inner surface of hollow bodies, e.g. bores
G01N 21/956 Inspecting patterns on the surface of objects
G01N 21/958 Inspecting transparent materials
G01N 21/3504 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light for analysing gases, e.g. multi-gas analysis
G01N 21/3518 Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
G01N 21/3554 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light for determining moisture content
G01N 21/3559 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light for determining moisture content in sheets, e.g. in paper
G01N 21/3563 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light for analysing solids; Preparation of samples therefor
G01N 21/3577 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light for analysing liquids, e.g. polluted water
G01N 21/3581 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light using Terahertz radiation
G01N 21/3586 Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
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
G01N 22/02 Investigating the presence of flaws
G01N 22/04 Investigating moisture content
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 , or
G01N 23/02 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material
G01N 23/04 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
G01N 23/05 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using neutrons
G01N 23/06 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption
G01N 23/08 using electric detection means
G01N 23/09 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being neutrons
G01N 23/10 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in luggage X-ray scanners
G01N 23/12 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the material being a flowing fluid or a flowing granular solid
G01N 23/14 specially adapted for controlling or monitoring operations or for signalling
G01N 23/16 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the material being a moving sheet or film
G01N 23/18 Investigating the presence of defects or foreign matter
G01N 23/20 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials
G01N 23/22 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material
G01N 23/041 Phase-contrast imaging, e.g. using grating interferometers
G01N 23/044 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using laminography or tomosynthesis
G01N 23/046 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
G01N 23/083 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
G01N 23/085 X-ray absorption fine structure [XAFS], e.g. extended XAFS [EXAFS]
G01N 23/087 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays using polyenergetic X-rays
G01N 23/095 Gamma-ray resonance absorption, e.g. using the Mössbauer effect
G01N 23/201 Measuring small-angle scattering, e.g. small angle X-ray scattering [SAXS]
G01N 23/202 Measuring small-angle scattering, e.g. small angle X-ray scattering [SAXS] using neutrons
G01N 23/203 Measuring back scattering
G01N 23/204 Measuring back scattering using neutrons
G01N 23/205 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials using diffraction cameras
G01N 23/206 the radiation being neutrons
G01N 23/207 Diffractometry, e.g. using a probe in a central position and one or more displaceable detectors in circumferential positions
G01N 23/221 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by activation analysis
G01N 23/222 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by activation analysis using neutron activation analysis [NAA]
G01N 23/223 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
G01N 23/225 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material using electron or ion microprobes
G01N 23/227 Measuring photoelectric effect , e.g. photoelectron emission microscopy [PEEM]
G01N 23/2005 Preparation of powder samples therefor
G01N 23/2055 Analysing diffraction patterns
G01N 23/2202 Preparing specimens therefor
G01N 23/2204 Specimen supports therefor; Sample conveying means therefor
G01N 23/2206 Combination of two or more measurements, at least one measurement being that of secondary emission, e.g. combination of secondary electron [SE] measurement and back-scattered electron [BSE] measurement
G01N 23/2208 Combination of two or more measurements, at least one measurement being that of secondary emission, e.g. combination of secondary electron [SE] measurement and back-scattered electron [BSE] measurement all measurements being of secondary emission, e.g. combination of SE measurement and characteristic X-ray measurement
G01N 23/2209 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material using wavelength dispersive spectroscopy [WDS]
G01N 23/2251 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material using electron or ion microprobes using incident electron beams, e.g. scanning electron microscopy [SEM]
G01N 23/2252 Measuring emitted X-rays, e.g. electron probe microanalysis [EPMA]
G01N 23/2254 Measuring cathodoluminescence
G01N 23/2255 Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material using electron or ion microprobes using incident ion beams, e.g. proton beams
G01N 23/2257 Measuring excited X-rays, i.e. particle-induced X-ray emission [PIXE]
G01N 23/2258 Measuring secondary ion emission, e.g. secondary ion mass spectrometry [SIMS]
G01N 23/2273 Measuring photoelectron spectra, e.g. electron spectroscopy for chemical analysis [ESCA] or X-ray photoelectron spectroscopy [XPS]
G01N 23/2276 Measuring photoelectric effect , e.g. photoelectron emission microscopy [PEEM] using the Auger effect, e.g. Auger electron spectroscopy [AES]
G01N 23/20008 Constructional details of analysers, e.g. characterised by X-ray source, detector or optical system; Accessories therefor; Preparing specimens therefor
G01N 23/20016 Goniometers
G01N 23/20025 Sample holders or supports therefor
G01N 23/20033 Sample holders or supports therefor provided with temperature control or heating means
G01N 23/20041 Sample holders or supports therefor for high pressure testing, e.g. anvil cells
G01N 23/20058 Measuring diffraction of electrons, e.g. low energy electron diffraction [LEED] method or reflection high energy electron diffraction [RHEED] method
G01N 23/20066 Measuring inelastic scattering of gamma rays, e.g. Compton effect
G01N 23/20091 Measuring the energy-dispersion spectrum [EDS] of diffracted radiation
G01N 24/00 Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
G01N 24/08 Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
G01N 24/10 Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using electron paramagnetic resonance
G01N 24/12 Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using double resonance
G01N 24/14 Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using cyclotron resonance
G01N 25/00 Investigating or analysing materials by the use of thermal means
G01N 25/02 Investigating or analysing materials by the use of thermal means by investigating sintering
G01N 25/04 Investigating or analysing materials by the use of thermal means by investigating sintering of softening point
G01N 25/06 Analysis by measuring change of freezing point
G01N 25/08 Investigating or analysing materials by the use of thermal means by investigating sintering of boiling point
G01N 25/10 Analysis by measuring change of boiling point
G01N 25/12 Investigating or analysing materials by the use of thermal means by investigating sintering of other phase change
G01N 25/14 Investigating or analysing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
G01N 25/16 Investigating or analysing materials by the use of thermal means by investigating thermal coefficient of expansion
G01N 25/18 Investigating or analysing materials by the use of thermal means by investigating thermal conductivity
G01N 25/20 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
G01N 25/22 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
G01N 25/24 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures using combustion tubes, e.g. for microanalysis
G01N 25/26 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures using combustion with oxygen under pressure, e.g. in bomb calorimeter
G01N 25/28 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
G01N 25/30 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using electric temperature-responsive elements
G01N 25/32 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using electric temperature-responsive elements using thermoelectric elements
G01N 25/34 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic
G01N 25/36 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic for investigating the composition of gas mixtures
G01N 25/38 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using the melting or combustion of a solid
G01N 25/40 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the heat developed being transferred to a flowing fluid
G01N 25/42 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the heat developed being transferred to a flowing fluid continuously
G01N 25/44 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the heat developed being transferred to a fixed quantity of fluid
G01N 25/46 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the heat developed being transferred to a fixed quantity of fluid for investigating the composition of gas mixtures
G01N 25/48 Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
G01N 25/50 Investigating or analysing materials by the use of thermal means by investigating explosibility
G01N 25/52 Investigating or analysing materials by the use of thermal means by investigating explosibility by determining flash-point of liquids
G01N 25/54 Investigating or analysing materials by the use of thermal means by investigating explosibility by determining explosibility
G01N 25/56 Investigating or analysing materials by the use of thermal means by investigating moisture content
G01N 25/58 Investigating or analysing materials by the use of thermal means by investigating moisture content by measuring changes of properties of the material due to heat, cold, or expansion
G01N 25/60 Investigating or analysing materials by the use of thermal means by investigating moisture content by measuring changes of properties of the material due to heat, cold, or expansion for determining the wetness of steam
G01N 25/62 Investigating or analysing materials by the use of thermal means by investigating moisture content by psychrometric means, e.g. wet-and-dry-bulb thermometers
G01N 25/64 Investigating or analysing materials by the use of thermal means by investigating moisture content by psychrometric means, e.g. wet-and-dry-bulb thermometers using electric temperature-responsive elements
G01N 25/66 Investigating or analysing materials by the use of thermal means by investigating moisture content by investigating dew-point
G01N 25/68 Investigating or analysing materials by the use of thermal means by investigating moisture content by investigating dew-point by varying the temperature of a condensing surface
G01N 25/70 Investigating or analysing materials by the use of thermal means by investigating moisture content by investigating dew-point by varying the temperature of the material, e.g. by compression, by expansion
G01N 25/72 Investigating presence of flaws
G01N 27/00 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
G01N 27/02 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
G01N 27/04 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
G01N 27/06 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
G01N 27/07 Construction of measuring vessels; Electrodes therefor
G01N 27/08 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
G01N 27/10 Investigation or analysis specially adapted for controlling or monitoring operations or for signalling
G01N 27/12 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
G01N 27/14 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
G01N 27/16 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
G01N 27/18 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
G01N 27/20 Investigating the presence of flaws
G01N 27/22 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01N 27/24 Investigating the presence of flaws
G01N 27/26 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by using electrolysis or electrophoresis
G01N 27/27 Association of two or more measuring systems or cells, each measuring a different parameter, where the measurement results may be either used independently, the systems or cells being physically associated, or combined to produce a value for a furthe
G01N 27/28 Electrolytic cell components
G01N 27/30 Electrodes, e.g. test electrodes; Half-cells
G01N 27/31 Half-cells with permeable membranes, e.g. semi-porous or perm-selective membranes
G01N 27/32 Calomel electrodes
G01N 27/34 Dropping-mercury electrodes
G01N 27/36 Glass electrodes
G01N 27/38 Cleaning of electrodes
G01N 27/40 Semi-permeable membranes or partitions
G01N 27/41 Oxygen pumping cells
G01N 27/42 Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
G01N 27/44 Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte using electrolysis to generate a reagent, e.g. for titration
G01N 27/48 Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
G01N 27/49 Systems involving the determination of the current at a single specific value, or small range of values, of applied voltage for producing selective measurement of one or more particular ionic species
G01N 27/60 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables
G01N 27/61 Investigating the presence of flaws
G01N 27/62 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode
G01N 27/64 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
G01N 27/66 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
G01N 27/68 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas
G01N 27/70 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas and measuring current or voltage
G01N 27/72 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
G01N 27/74 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids
G01N 27/76 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids by investigating susceptibility
G01N 27/80 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating mechanical hardness, e.g. by investigating saturation or remanence of ferromagnetic material
G01N 27/82 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
G01N 27/83 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
G01N 27/84 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
G01N 27/85 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using magnetographic methods
G01N 27/87 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes
G01N 27/90 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
G01N 27/92 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating breakdown voltage
G01N 27/327 Biochemical electrodes
G01N 27/333 Ion-selective electrodes or membranes
G01N 27/401 Salt-bridge leaks; Liquid junctions
G01N 27/403 Cells and electrode assemblies
G01N 27/404 Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid
G01N 27/406 Cells and probes with solid electrolytes
G01N 27/407 Cells and probes with solid electrolytes for investigating or analysing gases
G01N 27/409 Oxygen concentration cells
G01N 27/411 Cells and probes with solid electrolytes for investigating or analysing of liquid metals
G01N 27/413 Concentration cells using liquid electrolytes
G01N 27/414 Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
G01N 27/416 Systems
G01N 27/417 Systems using cells and probes with solid electrolytes
G01N 27/419 Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells
G01N 27/447 Systems using electrophoresis
G01N 27/453 Cells therefor
G01N 27/622 Ion mobility spectrometry
G01N 27/623 Ion mobility spectrometry combined with mass spectrometry
G01N 27/624 Differential mobility spectrometry [DMS]; Field asymmetric-waveform ion mobility spectrometry [FAIMS]
G01N 27/626 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
G01N 27/904 Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents with two or more sensors
G01N 27/9013 Arrangements for scanning
G01N 27/9093 Arrangements for supporting the sensor; Combinations of eddy-current sensors and auxiliary arrangements for marking or for rejecting
G01N 29/00 Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
G01N 29/02 Analysing fluids
G01N 29/04 Analysing solids
G01N 29/06 Visualisation of the interior, e.g. acoustic microscopy
G01N 29/07 Analysing solids by measuring propagation velocity or propagation time of acoustic waves
G01N 29/09 Analysing solids by measuring mechanical or acoustic impedance
G01N 29/11 Analysing solids by measuring attenuation of acoustic waves
G01N 29/12 Analysing solids by measuring frequency or resonance of acoustic waves
G01N 29/14 Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
G01N 29/22 Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details
G01N 29/024 Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
G01N 29/26 Arrangements for orientation or scanning
G01N 29/27 Arrangements for orientation or scanning by moving the material relative to a stationary sensor
G01N 29/028 Analysing fluids by measuring mechanical or acoustic impedance
G01N 29/30 Arrangements for calibrating or comparing, e.g. with standard objects
G01N 29/032 Analysing fluids by measuring attenuation of acoustic waves
G01N 29/34 Generating the ultrasonic, sonic or infrasonic waves
G01N 29/036 Analysing fluids by measuring frequency or resonance of acoustic waves
G01N 29/38 Detecting the response signal by time filtering, e.g. using time gates
G01N 29/40 Detecting the response signal by amplitude filtering, e.g. by applying a threshold
G01N 29/42 Detecting the response signal by frequency filtering
G01N 29/44 Processing the detected response signal
G01N 29/46 Processing the detected response signal by spectral analysis, e.g. Fourier analysis
G01N 29/48 Processing the detected response signal by amplitude comparison
G01N 29/50 Processing the detected response signal using auto-correlation techniques or cross-correlation techniques
G01N 29/52 Processing the detected response signal using inversion methods other than spectral analysis, e.g. conjugated gradient inversion
G01N 29/265 Arrangements for orientation or scanning by moving the sensor relative to a stationary material
G01N 29/275 Arrangements for orientation or scanning by moving both the sensor and the material
G01N 30/00 Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
G01N 30/02 Column chromatography
G01N 30/04 Preparation or injection of sample to be analysed
G01N 30/06 Preparation
G01N 30/08 Preparation using an enricher
G01N 30/10 Preparation using a splitter
G01N 30/12 Preparation by evaporation
G01N 30/14 Preparation by elimination of some components
G01N 30/16 Injection
G01N 30/18 Injection using a septum or microsyringe
G01N 30/20 Injection using a sampling valve
G01N 30/22 Injection in high pressure liquid systems
G01N 30/24 Automatic injection systems
G01N 30/26 Conditioning of the fluid carrier; Flow patterns
G01N 30/28 Control of physical parameters of the fluid carrier
G01N 30/30 Control of physical parameters of the fluid carrier of temperature
G01N 30/32 Control of physical parameters of the fluid carrier of pressure or speed
G01N 30/34 Control of physical parameters of the fluid carrier of fluid composition, e.g. gradient
G01N 30/36 Control of physical parameters of the fluid carrier in high pressure liquid systems
G01N 30/38 Flow patterns
G01N 30/40 Flow patterns using back flushing
G01N 30/42 Flow patterns using counter-current
G01N 30/44 Flow patterns using recycling of the fraction to be distributed
G01N 30/46 Flow patterns using more than one column
G01N 30/50 Conditioning of the sorbent material or stationary liquid
G01N 30/52 Physical parameters
G01N 30/54 Temperature
G01N 30/56 Packing methods or coating methods
G01N 30/58 Conditioning of the sorbent material or stationary liquid the sorbent moving as a whole
G01N 30/60 Construction of the column
G01N 30/62 Detectors specially adapted therefor
G01N 30/64 Electrical detectors
G01N 30/66 Thermal conductivity detectors
G01N 30/68 Flame ionisation detectors
G01N 30/70 Electron capture detectors
G01N 30/72 Mass spectrometers
G01N 30/74 Optical detectors
G01N 30/76 Acoustical detectors
G01N 30/78 Detectors specially adapted therefor using more than one detector
G01N 30/80 Fraction collectors
G01N 30/82 Automatic means therefor
G01N 30/84 Preparation of the fraction to be distributed
G01N 30/86 Signal analysis
G01N 30/88 Integrated analysis systems specially adapted therefor, not covered by a single one of groups
G01N 30/89 Inverse chromatography, i.e. with the analyte in stationary phase
G01N 30/90 Plate chromatography, e.g. thin layer or paper chromatography
G01N 30/91 Application of the sample
G01N 30/92 Construction of the plate
G01N 30/93 Application of the sorbent layer
G01N 30/94 Development
G01N 30/95 Detectors specially adapted therefor; Signal analysis
G01N 30/96 Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography using ion-exchange
G01N 31/00 Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods
G01N 31/02 Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using precipitation
G01N 31/10 Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using catalysis
G01N 31/12 Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using combustion
G01N 31/16 Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using titration
G01N 31/18 Burettes specially adapted for titration
G01N 31/20 Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using microanalysis, e.g. drop reaction
G01N 31/22 Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using chemical indicators
G01N 33/00 Investigating or analysing materials by specific methods not covered by groups
G01N 33/02 Food
G01N 33/03 Edible oils or edible fats
G01N 33/04 Dairy products
G01N 33/06 Determining fat content, e.g. by butyrometer
G01N 33/08 Eggs, e.g. by candling
G01N 33/10 Starch-containing substances, e.g. dough
G01N 33/12 Meat; Fish
G01N 33/14 Beverages
G01N 33/15 Medicinal preparations
G01N 33/18 Water
G01N 33/20 Metals
G01N 33/22 Fuels; Explosives
G01N 33/24 Earth materials
G01N 33/26 Oils; Viscous liquids; Paints; Inks
G01N 33/28 Oils
G01N 33/30 Oils for lubricating properties
G01N 33/32 Paints; Inks
G01N 33/34 Paper
G01N 33/36 Textiles
G01N 33/38 Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
G01N 33/40 Grinding-materials
G01N 33/42 Road-making materials
G01N 33/44 Resins; Plastics; Rubber; Leather
G01N 33/46 Wood
G01N 33/48 Biological material, e.g. blood, urine; Haemocytometers
G01N 33/49 Physical analysis of biological material of liquid biological material blood
G01N 33/50 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
G01N 33/52 Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper
G01N 33/53 Immunoassay; Biospecific binding assay; Materials therefor
G01N 33/58 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances
G01N 33/60 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances involving radioactive labelled substances
G01N 33/62 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving urea
G01N 33/64 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving ketones
G01N 33/66 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood sugars, e.g. galactose
G01N 33/68 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
G01N 33/70 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving creatine or creatinine
G01N 33/72 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood pigments, e.g. hemoglobin, bilirubin
G01N 33/74 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving hormones
G01N 33/76 Human chorionic gonadotropin
G01N 33/78 Thyroid gland hormones
G01N 33/80 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood groups or blood types
G01N 33/82 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving vitamins
G01N 33/84 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving inorganic compounds or pH
G01N 33/86 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood coagulating time
G01N 33/88 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving prostaglandins
G01N 33/90 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving iron binding capacity of blood
G01N 33/92 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving lipids, e.g. cholesterol
G01N 33/94 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving narcotics
G01N 33/96 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood or serum control standard
G01N 33/98 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving alcohol, e.g. ethanol in breath
G01N 33/202 Constituents thereof
G01N 33/204 Structure thereof, e.g. crystal structure
G01N 33/205 Metals in liquid state, e.g. molten metals
G01N 33/207 Welded or soldered joints; Solderability
G01N 33/208 Coatings, e.g. platings
G01N 33/483 Physical analysis of biological material
G01N 33/487 Physical analysis of biological material of liquid biological material
G01N 33/493 Physical analysis of biological material of liquid biological material urine
G01N 33/497 Physical analysis of biological material of gaseous biological material, e.g. breath
G01N 33/531 Production of immunochemical test materials
G01N 33/532 Production of labelled immunochemicals
G01N 33/533 Production of labelled immunochemicals with fluorescent label
G01N 33/534 Production of labelled immunochemicals with radioactive label
G01N 33/535 Production of labelled immunochemicals with enzyme label
G01N 33/536 Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
G01N 33/537 Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody
G01N 33/538 Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody by sorbent column, particles or resin strip
G01N 33/539 Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody involving precipitating reagent
G01N 33/541 Double or second antibody
G01N 33/542 Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with steric inhibition or signal modification, e.g. fluorescent quenching
G01N 33/543 Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
G01N 33/544 Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being organic
G01N 33/545 Synthetic resin
G01N 33/546 Synthetic resin as water suspendable particles
G01N 33/547 Synthetic resin with antigen or antibody attached to the carrier via a bridging agent
G01N 33/548 Carbohydrates, e.g. dextran
G01N 33/549 Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being organic with antigen or antibody entrapped within the carrier
G01N 33/551 Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being inorganic
G01N 33/552 Glass or silica
G01N 33/553 Metal or metal coated
G01N 33/554 Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being a biological cell or cell fragment, e.g. bacteria, yeast cells
G01N 33/555 Red blood cell
G01N 33/556 Fixed or stabilised red blood cell
G01N 33/557 Immunoassay; Biospecific binding assay; Materials therefor using kinetic measurement, i.e. time rate of progress of an antigen-antibody interaction
G01N 33/558 Immunoassay; Biospecific binding assay; Materials therefor using diffusion or migration of antigen or antibody
G01N 33/559 Immunoassay; Biospecific binding assay; Materials therefor using diffusion or migration of antigen or antibody through a gel, e.g. Ouchterlony technique
G01N 33/561 Immunoelectrophoresis
G01N 33/563 Immunoassay; Biospecific binding assay; Materials therefor involving antibody fragments
G01N 33/564 Immunoassay; Biospecific binding assay; Materials therefor for pre-existing immune complex or autoimmune disease
G01N 33/566 Immunoassay; Biospecific binding assay; Materials therefor using specific carrier or receptor proteins as ligand binding reagent
G01N 33/567 Immunoassay; Biospecific binding assay; Materials therefor using specific carrier or receptor proteins as ligand binding reagent utilising isolate of tissue or organ as binding agent
G01N 33/569 Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
G01N 33/571 Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses for venereal disease, e.g. syphilis, gonorrhoea, herpes
G01N 33/573 Immunoassay; Biospecific binding assay; Materials therefor for enzymes or isoenzymes
G01N 33/574 Immunoassay; Biospecific binding assay; Materials therefor for cancer
G01N 33/576 Immunoassay; Biospecific binding assay; Materials therefor for hepatitis
G01N 33/577 Immunoassay; Biospecific binding assay; Materials therefor involving monoclonal antibodies
G01N 33/579 Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving limulus lysate
G01N 33/2022 Non-metallic constituents
G01N 33/2025 Gaseous constituents
G01N 33/2028 Metallic constituents
G01N 33/2045 Defects
G01N 35/00 Automatic analysis not limited to methods or materials provided for in any single one of groups ; Handling materials therefor
G01N 35/02 Automatic analysis not limited to methods or materials provided for in any single one of groups ; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
G01N 35/04 Automatic analysis not limited to methods or materials provided for in any single one of groups ; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations - Details of the conveyor system
G01N 35/08 Automatic analysis not limited to methods or materials provided for in any single one of groups ; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
G01N 35/10 Devices for transferring samples to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
G01N 37/00 INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES - Details not covered by any other group of this subclass