Gas analysis & monitoring systems for gas purity
The purity of a gas is an indication of the amount of other gases contained in it. A high purity refers to a low amount of other gases. High purity gas are considered to be of better quality and are generally more expensive. The purity of the gas can be expressed as a percentage or as a decimal fraction. Applications for checking the purity of the gases across different industrial sectors by air separation plants, cryogenic facilities, the quality control of industrial gases to the steel mills, etc.
ETG has various instruments according to specific needs. In particular is monitored the level of nitrogen in different gas mixtures. A second economic needs is available the measurement of traces of nitrogen or only in Argon and / or helium or in a gas mixture of different
The field of application of analytical procedures is extremely broad. For example for verify the quality of the food, to test the engines in the automotive industry, for process control in the chemical or pharmaceutical industry, in medicine, in metallurgy or in environmental monitoring, analytical methods are performed for process control, quality assurance or to demonstrate compliance with the requirements of the law.
Analytical methods used are as numerous as are the fields of application. In analytical chemistry, the analysis with gas as a special area of organic and inorganic analysis, has undergone significant development over the last thirty years, if at the beginning of the seventies the classical methods volumetric absorption and trimetrici you were still industrial practice current and gas chromatographs still a rarity, is now prefer the instrumental analysis.