This study was commissioned to compare a number of tables used for oxygen decompression in compressed air tunnelling work. The means of making the comparisons was mathematical simulations of decompression using a model previously validated for decompression studies. Tables from Brazil, France, Germany, Holland, Switzerland and USA are included together with the UK tables which are the Blackpool Tables using oxygen from 0.6 bar. There are two main conclusions from this study: that the Blackpool Tables are predicted to have a volume of gas carried in bubbles which is within the range of that for the other tables studied.; that the other tables studied could all be considered acceptable for use in UK.
The Research Report Series are produced in Adobe Acrobat. The use of the latest version of the software is recommended which is available at the Adobe website via the link on this page.
Assistance in the use of Adobe Acrobat PDF files is available on our FAQs page.