Pressure vessel

摘要

A pressure vessel intended, in particular, for the digestion of samples for analytical purposes is resistant to pressure and temperature. At least the inside surface of the pressure vessel is chemically resistant and inert, and is also impermeable to impurities up to high temperatures, with the result that their concentration in the sample substance is below the ppb range. In such a pressure vessel, at least the wall region forming the inside surface is composed of solid carbon. <IMAGE>