Koostumukset

Koostumus is a Finnish noun meaning the make-up, constitution, or composition of something—the elements, components, or ingredients that form a whole. The plural muodossa koostumukset refers to several such make-ups. The term is widely used in science and everyday language to describe what something consists of.

In chemistry and materials science, koostumus denotes the chemical composition: which elements or compounds are present and in what amounts. It may be expressed as mass percentages, molar fractions, or empirical formulas; for alloys, the proportions of constituent elements determine properties. In nutrition and food labeling, koostumus or koostumukset describes the ingredients list and their amounts, and is used to calculate nutrition information. In pharmacology or cosmetics, it refers to formulation ingredients and their ratios. In general use, it can describe the makeup of a group, product, or phenomenon.

Data on koostumus are obtained through analysis and measurement: chemical analyses, spectroscopy, chromatography, mass spectrometry, elemental analysis, etc. Documentation often presents a list of components with amounts or percentages, and may include notes on concentration ranges, tolerances, or processing effects.