Visual colorimetry

Measurement of colors based on a set of conventions. 2. The science of, or body of techniques employed in, (a) the measurement or characterization of color, and (b) the ...

colorimetry

Physics; Color science

The science of measuring color and color appearance. Classical colorimetry deals primarily with color matches rather than with color appearance as such. The main focus of ...

colorimetry

Textiles; Manufactured fibers

Any technique for evaluating a given color in terms of standard colors.

colorimetry

Weather; Meteorology

Form of absorption spectroscopy in which a reagent that bonds with the species of interest is added to a liquid solution, resulting in a change in color of the solution. The ...

freeboard

Chemistry; Analytical chemistry

The space provided above the resin bed in an ion-exchange column to allow for expansion of the bed during backwashing.

calibration reference

Chemistry; Analytical chemistry

Any of the standards of various types that indicate whether an analytical instrument or procedure is working within prescribed limits; examples are test solutions used with pH ...

relative stability test

Chemistry; Analytical chemistry

A color test using methylene blue that indicates when the oxygen present in a sewage plant’s effluent or polluted water is exhausted.

fusion tube

Chemistry; Analytical chemistry

Device used for the analysis of the elements in a compound by fusing them with another compound; for example, analysis of nitrogen in organic compounds by fusing the compound with ...

capacity

Chemistry; Analytical chemistry

In chromatography, a measurement used in ion-exchange systems to express the adsorption ability of the ion-exchange materials.

replication

Chemistry; Analytical chemistry

The formation of a faithful mold or replica of a solid that is thin enough for penetration by an electron microscope beam; can use plastic (such as collodion) or vacuum deposition ...