Term: mixing
https://doi.org/10.1351/goldbook.M03945

Definition:
The combining of components, particles or layers into a more homogeneous state. The mixing may be achieved manually or mechanically by shifting the material with stirrers or pumps or by revolving or shaking the container. The process must not permit segregation of particles of different size or properties. homogeneity may be considered to have been achieved in a practical sense when the sampling error of the processed portion is negligible compared to the total error of the measurement system.

Related Terms:
1) segregation (http://doi.org/10.1351/goldbook.S05544).
2) homogeneity (<em>in analytical chemistry</em>) (http://doi.org/10.1351/goldbook.H02845).
3) sampling error (<em>in analytical chemistry</em>) (http://doi.org/10.1351/goldbook.S05463).
4) measurement (<em>in analytical chemistry</em>) (http://doi.org/10.1351/goldbook.M03794).

Source: PAC, 1990, 62, 1193. 'Nomenclature for sampling in analytical chemistry (Recommendations 1990)' on page 1204 (https://doi.org/10.1351/pac199062061193)

Citation: 'mixing' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.M03945

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