Ozone science & engineering special issue on quality assurance in ozone practice (1998)

In the late 1980s, the IOA published recommended guidance documents in the form of codes of good practice related to ozone generation and application. These still apply. However, at that time, the concentration of 'industrial' ozone generated in air was currently about 20 g per normal cubic meter; exceptionally 50 g per cubic meter gas (NTP); and 60g, exceptionally up to 80-100 g ozone per cubic meter gas (NTP) when oxygen was used as feed gas for the generation systems. Since that time, progress has been made in generating higher ozone concentrations in the process gas for different applications. At present, concentrations of 200-220 g per Normal Cubic Meter (NTP) are currently obtained and the trend is to increase the concentration as far as possible. As a consequence: a first series of revised guidance documents have been formulated by the Quality Assurance Committee and are published herewith on behalf of the Committee. I have to thank herewith, all the members and contributors to/of the International Committee and however in particular: Dr Lutz Blaich, Dr Bruno Langlais and Ing. Eric Thieblin for the long and patient work accomplished to formulate an up-dated list of standard terms related to ozone practice. (For Information: This list will also later be made available in French and German as well, and, if possible later as well in other languages). Particular gratitude of the Committee goes also to John Bell and Anne Reading to have 'formatted' a very easy and handy table of conversion of units of measurement and expression of results. The Committee will also suggest to the board other appropriate ways for diffusion of these tables as well.