Being able to offer a consistently high level of spray coatings on a global scale has become more and more the trend in thermal spraying. For this reason it is extremely important that auxiliary materials such as industrial gases or spray materials of a high quality are provided world-wide. In connection with their respective applications, industrial gases must always be available at a specified purity level. In order to ensure such a purity, industrial gas producers invest a great deal of time and energy in analysis and supply concepts which guarantee this purity from the tank or cylinder through to the transfer point. This paper will provide an overview of state-of-the-art supply and purity concepts, as seen by the gas industry, and the influence of fluctuating gas quality. Examples will also be given for the differing gas qualities in individual countries.

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