Pressure-rated crystal holding device for use in a high temperature crude corrosivity test

摘要

Disclosed is a device for use in a test to measure the corrosivity of a high temperature hydrocarbon based fluid by determining areal mass density change from a metal layer deposited on a surface of a gallium orthophosphate (GaPO₄) crystal. The device includes a blind flange according to ASME B 16.5 having a peripheral bolt portion and a central portion. Bolt holes are present in the peripheral bolt portion of the blind flange for attaching the blind flange to a vessel. A hole through the central portion of the blind flange is provided to which a tube is securely attached at a first end. A second end of the tube is capable of holding the GaPO₄ crystal.