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IPC entry: G01N 25/00 Main group [Version 2024.01 (current), Language EN - English]

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DEKLA groups

Symbol		Title
A		HUMAN NECESSITIES
B		PERFORMING OPERATIONS; TRANSPORTING
C		CHEMISTRY; METALLURGY
D		TEXTILES; PAPER
E		FIXED CONSTRUCTIONS
F		MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G		PHYSICS
G01		MEASURING; TESTING
G01B		MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
G01C		MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effect, propagation time, of radio waves, analogous arrangements using other waves G01S)
G01D		MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01F		MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME [2, 5]
G01G		WEIGHING
G01H		MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES [4]
G01J		MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY [2]
G01K		MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J 5/00)
G01L		MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) [4]
G01M		TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
G01N		INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
G01N 1/00		Sampling; Preparing specimens for investigation (handling materials for automatic analysis G01N 35/00) [1, 2006.01]
G01N 3/00		Investigating strength properties of solid materials by application of mechanical stress [1, 2006.01]
G01N 5/00		Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid (G01N 9/00 takes precedence) [1, 2006.01]
G01N 7/00		Analysing materials by measuring the pressure or volume of a gas or vapour [1, 2006.01]
G01N 9/00		Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity [1, 2006.01]
G01N 11/00		Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties [1, 2006.01]
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) [1, 7, 2006.01]
G01N 15/00		Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials (identification of microorganisms C12Q) [1, 4, 2006.01, 2024.01]
G01N 17/00		Investigating resistance of materials to the weather, to corrosion or to light [1, 2006.01]
G01N 19/00		Investigating materials by mechanical methods (G01N 3/00-G01N 17/00 take precedence) [1, 2006.01]
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 3/00-G01N 19/00 take precedence) [1, 2006.01]
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 3/00-G01N 17/00, G01N 24/00 take precedence) [3, 2006.01]
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 G01N 3/00-G01N 17/00, G01N 21/00 or G01N 22/00 [1, 2006.01]
G01N 24/00		Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects [3, 4, 5, 2006.01]
G01N 25/00		Investigating or analysing materials by the use of thermal means (G01N 3/00-G01N 23/00 take precedence) [1, 2006.01]
G01N 25/02		. by investigating changes of state or changes of phase; by investigating sintering [1, 2006.01]
G01N 25/04		. . of melting point; of freezing point; of softening point [1, 2006.01]
G01N 25/06		. . . Analysis by measuring change of freezing point [1, 2006.01]
G01N 25/08		. . of boiling point [1, 2006.01]
G01N 25/10		. . . Analysis by measuring change of boiling point [1, 2006.01]
G01N 25/12		. . of critical point; of other phase change [1, 2006.01]
G01N 25/14		. by using distillation, extraction, sublimation, condensation, freezing, or crystallisation (G01N 25/02 takes precedence) [1, 2006.01]
G01N 25/16		. by investigating thermal coefficient of expansion [1, 2006.01]
G01N 25/18		. by investigating thermal conductivity (by calorimetry G01N 25/20; by measuring change of resistance of an electrically-heated body G01N 27/18) [1, 2006.01]
G01N 25/20		. by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity [1, 2006.01]
G01N 25/22		. . on combustion or catalytic oxidation, e.g. of components of gas mixtures [1, 2006.01]
G01N 25/24		. . . using combustion tubes, e.g. for microanalysis [1, 2006.01]
G01N 25/26		. . . using combustion with oxygen under pressure, e.g. in bomb calorimeter [1, 2006.01]
G01N 25/28		. . . the rise in temperature of the gases resulting from combustion being measured directly [1, 2006.01]
G01N 25/30		. . . . using electric temperature-responsive elements [1, 2006.01]
G01N 25/32		. . . . . using thermoelectric elements [1, 2006.01]
G01N 25/34		. . . . using mechanical temperature-responsive elements, e.g. bimetallic [1, 2006.01]
G01N 25/36		. . . . . for investigating the composition of gas mixtures [1, 2006.01]
G01N 25/38		. . . . using the melting or combustion of a solid [1, 2006.01]
G01N 25/40		. . . the heat developed being transferred to a flowing fluid [1, 2006.01]
G01N 25/42		. . . . continuously [1, 2006.01]
G01N 25/44		. . . the heat developed being transferred to a fixed quantity of fluid [1, 2006.01]
G01N 25/46		. . . . for investigating the composition of gas mixtures [1, 2006.01]
G01N 25/48		. . on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation [1, 2006.01]
G01N 25/50		. by investigating flash-point; by investigating explosibility [1, 2006.01]
G01N 25/52		. . by determining flash-point of liquids [1, 2006.01]
G01N 25/54		. . by determining explosibility [1, 2006.01]
G01N 25/56		. by investigating moisture content [1, 2006.01]
G01N 25/58		. . by measuring changes of properties of the material due to heat, cold, or expansion [1, 2006.01]
G01N 25/60		. . . for determining the wetness of steam [1, 2006.01]
G01N 25/62		. . by psychrometric means, e.g. wet-and-dry-bulb thermometers [1, 2006.01]
G01N 25/64		. . . using electric temperature-responsive elements [1, 2006.01]
G01N 25/66		. . by investigating dew-point [1, 2006.01]
G01N 25/68		. . . by varying the temperature of a condensing surface [1, 2006.01]
G01N 25/70		. . . by varying the temperature of the material, e.g. by compression, by expansion [1, 2006.01]
G01N 25/72		. Investigating presence of flaws [1, 2006.01]
G01N 27/00		Investigating or analysing materials by the use of electric, electrochemical, or magnetic means (G01N 3/00-G01N 25/00 take precedence; measurement or testing of electric or magnetic variables or of electric or magnetic properties of materials G01R) [1, 2006.01]
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 3/00-G01N 27/00 take precedence) [1, 4, 2006.01]
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 3/00-G01N 29/00 take precedence) [4, 2006.01]
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 [1, 4, 2006.01]
G01N 33/00		Investigating or analysing materials by specific methods not covered by groups G01N 1/00-G01N 31/00 [1, 2006.01]
G01N 35/00		Automatic analysis not limited to methods or materials provided for in any single one of groups G01N 1/00-G01N 33/00; Handling materials therefor [3, 2006.01]
G01N 37/00		Details not covered by any other group of this subclass [3, 2006.01]
G01P		MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT; INDICATING DIRECTION OF MOVEMENT (measuring angular rate using gyroscopic effects G01C 19/00; combined measuring devices for measuring two or more variables of movement G01C 23/00; measuring velocity of sound G01H 5/00; measuring velocity of light G01J 7/00; determining direction or velocity of solid objects by reflection or reradiation of radio or other waves and based on propagation effects, e.g. Doppler effect, propagation time or direction of propagation, G01S; measuring speed of nuclear radiation G01T)
G01Q		SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING-PROBE MICROSCOPY [SPM] [2010.01]
G01R		MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J 3/12)
G01S		RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
G01T		MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N 23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J 47/00)
G01V		GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B 29/02) [4, 6]
G01W		METEOROLOGY (radar, sonar, lidar or analogous systems, designed for meteorological use G01S 13/95, G01S 15/88, G01S 17/95)
G02		OPTICS
G03		PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY [4]
G04		HOROLOGY
G05		CONTROLLING; REGULATING
G06		COMPUTING; CALCULATING OR COUNTING
G07		CHECKING-DEVICES
G08		SIGNALLING
G09		EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G10		MUSICAL INSTRUMENTS; ACOUSTICS
G11		INFORMATION STORAGE
G12		INSTRUMENT DETAILS
G16		INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS [2018.01]
G21		NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G99		SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
H		ELECTRICITY

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