CORROSION ALLOWANCE FOR PRESSURE VESSELS

We are in the process of specifiying some pressure vessels for natural gas. I am trying to locate some authentic material on the provision of an appropriate corrosion allowance. I have tried to locate the relevant information in the ASME code Section VIII but so far have failed to locate any categorical recommendation. Can anybody guide me regarding the working-out of an appropriate corrosion allowance for a pressure vessel viz-a-viz 1)construction material of the vessel 2)H2S & CO2 contents of the contained fluid 3)Chloride content in the fluid 4)pressure and temperature of the fluid and 5)Required life of the vessel. Is there any established industrial practice which can serve as a guide? I would be highly thankful for the requested guidance. Regards,
Shahbaz Khan Received on Wed Jun 12 00:25:00 2002