A wide classification of instruments that are used to analyze material samples, or their components, and record data specific to the application.

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Anechoic Chambers (39 suppliers)

Anechoic chambers are specialized chambers designed for electromagnetic or sound waves.
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Calorimeters and thermal analyzers contain a heat source that can deliver a heat flux, at a distinct temperature, into a sample, and a temperature-measuring device that can read the resultant change in temperature.
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Conductivity meters, dissolved solids meters, and resistivity meters are analytical instruments that measure the conductivity, dissolved solids, and/or resistivity of a liquid sample.
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Conductivity electrodes are devices that measure the salinity and conductivity of water samples.
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Deflectometers and extensometers are used to indicate the deformation of material while it is subjected to stress.
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Density and specific gravity instruments are meters used to determine density and specific gravity.
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Densometers and porosimeters are used for measuring porosity, air permeability or air resistance of sheet-like or bulk materials.
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Diffractometers (34 suppliers)

Diffractometers are used to measure crystal structure, grain size, texture, and/or residual stress of materials and compounds through the interaction of X-ray beams, gamma rays, electron beams, or neutron beams with a sample.
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Dissolved CO2 instruments are analytical devices that measure the amount of carbon dioxide (CO2) dissolved in a liquid sample such as water. They typically include a submerged probe that is covered by a thin organic membrane.
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Dissolved oxygen meters are analytical instruments that are used to measure the amount of oxygen dissolved in a liquid sample.
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Dissolved oxygen sensors are used to measure the amount of oxygen dissolved in a unit volume of water. In water quality applications, such as aquaculture (including fish farming) and wastewater treatment, the amount of dissolved oxygen (DO) must be kept high.
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Durometers (66 suppliers)

Durometers are instruments used for measuring the indentation hardness of rubber, elastomers, plastics and foam materials.
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Environmental test chambers and rooms are used to ensure the reliability of industrial products, especially electronic items, through prolonged exposure to one or more environmental parameters.
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Fluorometers (113 suppliers)

Fluorometers measure the amount of fluorescent radiation produced by a sample exposed to monochromatic radiation.
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Fuel Testers (30 suppliers)

Fuel testers analyze the properties and composition of biofuels, gasoline, diesel, and petroleum-based fuels and fuel feedstocks.
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Gas Instruments (952 suppliers)

Gas instruments detect, monitor or analyze gases present in an environment.
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Geophysical instruments are used for geological study, including rock and soil mechanics, core analysis and surveys of the earth.
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Groundwater monitoring equipment includes pumps and other instruments that tap into the water table for water quality assessment, testing for pollutants, and the identification of other compounds.
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Hardness Testers (238 suppliers)

Hardness testers measure a material's resistance to indentation. This calculation is determined by measuring the permanent depth or projected area of the indentation.
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Hydrometers (82 suppliers)

Hydrometers are calibrated glass floats used to determine the specific gravity of a liquid.
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Hygrometers and humidity measurement instruments test for absolute humidity, relative humidity, or dew point in air.
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Instrument calibration services test equipment and calibrate them to various standards.  
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Ion selective electrodes measure the potential of a specific ion in solution. This potential is measured against a stable reference electrode of constant potential.
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Ion specific electrode meters are millivolt meters that interface with ion selective electrodes (ISEs). These meters take the potential generated by the electrode and convert it into units of concentration.
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Laboratory Balances (253 suppliers)

Laboratory balances are used to measure an object’s mass to a very high degree of precision.
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Leaf Wetness Sensors (12 suppliers)

Leaf wetness sensors are used to detect the presence of surface moisture.
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Leak Testing Equipment (463 suppliers)

Leak testing equipment is used to measure the escape of liquids, vacuum or gases from sealed components or systems.
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Liquid Leak Detectors (245 suppliers)

Liquid leak detectors sense when a liquid is leaking from a pipe, tank, or other receptacle.
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Mechanical testing equipment covers devices used for adhesion, compression, drop (shock), tensile, vibration and fatigue testing.
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Moisture Meters (800 suppliers)

Moisture meters are used to measure the moisture content in bulk solids, liquids and gases.
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Oil in water monitors are used to detect the presence of hydrocarbons in water.
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Oil sensors and oil analyzers are used in automotive or industrial machinery applications to sense oil levels, and check for contamination, and particulates, viscosity and/or temperature.
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Opacity sensors and instruments measure the amount of light transmitted through a sample.
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Oxygen reduction potential (ORP) electrodes are analytical sensors for measuring oxidation-reduction potential (ORP).
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Oxidation reduction potential (ORP) instruments measure or monitor ORP in solution.
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Particle Analyzers (231 suppliers)

Particle analyzers are used to determine the physical makeup of individual particulates in aerosols, dispersion, emulsions, powders, and other samples.
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Permeation instruments are designed to measure the permeability, solubility, diffusivity and precise transmission rate of organic vapors or liquids through films, paper, pulp, packages and other materials.
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pH Electrodes (198 suppliers)

pH electrodes are analytical sensors for measuring potential of hydrogen (pH), the negative logarithm of the hydrogen ion activity in solution.
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pH Instruments (416 suppliers)

pH instruments are used to measure or monitor potential of hydrogen (pH) in a solution.
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Plant Growth Chambers are specifically designed to produce environmental conditions to maximize plant growth.
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Polymer test equipment includes melt flow indexers, extrusiometers, and other specialized instruments for determining the processability and properties of plastics and elastomer materials.
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Powder testing equipment is used to measure the static and dynamic properties of powders for pharmaceutical, coating, and other solid-particulate applications.
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Material test fixtures and accessories include mechanical testing grips, fixtures, sample heaters, extensometers, specimen cutters, and other specialized test components.
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Property testers are used to determine various physical properties of samples, including cloud point, distillation, flash point, freezing point, melting point, pour point, and vapor pressure.
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Pulp and paper testers include specialized sensors, instruments, COBB testers, and test equipment for evaluating the material properties and processability characteristics of pulp and paper.
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Pycnometers (25 suppliers)

Pycnometers are glass or metal containers with a determined volume. They are typically used to determine the density of liquids and their dispersions
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Radiation Detectors (205 suppliers)

Radiation detectors are used for medical diagnoses, radioactive dating measurements, and measurements of background radiation, activity levels and radiation doses.
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Refractometers (154 suppliers)

Refractometers measure the critical angle of refraction through a sample. The critical angle of refraction will change with concentration.
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Residual gas analyzers (RGAs) identify the gases present in vacuum environments.
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Rheometers (70 suppliers)

Rheometers characterize a liquid according to its viscous properties and elastic responses.
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Solar radiation instruments measure the spectral range of radiation, including global solar radiation (sun + sky), net radiation (incoming solar - reflected solar) and the photosynthetic light spectrum.
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Solid phase extraction (SPE) cartridges and disks are used to clean up a sample before using a chromatographic or other analytical method to quantify the amount of analyte(s) in the sample.
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Stability chambers and stability rooms are temperature-controlled and humidity-controlled environmental units that provide stable conditions for storage and testing purposes.
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Surface area and pore size analyzers are used to measure the surface area and pore size of a sample.
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Temperature forcing systems provide heating, cooling and/or a humidity and temperature controlled atmosphere to a separate test chamber, platform, or testing unit.
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Temperature Indicators (477 suppliers)

Temperature indicators are designed for temperature monitoring and analysis. These devices either come equipped with an integral sensor, or require sensor input.
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Surface tension and wettability instruments measure fluid surface tension, a tangential force that keeps a fluid together at the air/fluid interface. Surface tension is a direct indicator of the quality of any chemical and any formulation.
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Thermal Imagers (332 suppliers)

Thermal imagers detect heat patterns in the infrared wavelength (1 micron to 100 micron) spectrum.
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Thermal Platforms (11 suppliers)

Thermal Platforms provide heating and cooling with more precise temperature control for environmental or climatic testing.
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Titration instruments are used to determine the concentration of dissolved substances. Titration is based on a complete chemical reaction between the specific substance, the analyte, and a reagent or titrant of known concentration that is added to the sample.
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Total organic carbon (TOC) analyzers measure the amount of total organic carbon present in a liquid sample.
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Turbidity Instruments (210 suppliers)

Turbidity instruments measure the average volume of light scattering over a defined angular range. Both particle size and concentration of suspended solids as well as dissolved solids can affect the reading.
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Viscometers (179 suppliers)

Viscometers define viscous properties of a fluid at ambient or defined temperatures.
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Volatile organic compound (VOC) analyzers are used to detect concentrations of heavy hydrocarbons in gas or liquid media.
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Water quality photometers and colorimeters are ion-specific, computer-interfaced probes that are designed to determine the concentration of a solution from its color intensity.
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Water quality testing instruments are used to test water for chemical and biological agents, and to measure variables such as clarity and rate of movement.
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Weather Instruments (348 suppliers)

Weather instruments are designed to measure one or multiple components of weather including wind speed and direction, rain or snow fall, solar radiation, temperature, pressure and humidity.
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