In metallurgy, chromatographs are used to analyze the purity of gases (oxygen, hydrogen, krypton, argon, helium, xenon). Substances can be used both in liquid and gaseous state. Chromatographic equipment also allows to investigate impurities in argon or hydrocarbon impurities in oxygen. Enterprises of the metallurgical industry with the help of chromatographs analyze the products of blast furnace production, which include iron. Thus, gas chromatographic methods make it possible to determine the component composition of phenolic coal, pyridine coke products, as well as coal oils. Chromatographic equipment manufactured by “Meta-chrom” copes not only with these tasks, but with many other analytical tasks.