D5154 – Standard Test Method Technical Guide

The ASTM D5154/D5154M-18 standard provides a definitive microactivity test method for evaluating the performance of Fluid Catalytic Cracking (FCC) catalysts. Designed for both equilibrium and laboratory-deactivated catalysts, the test measures catalytic activity via mass percent conversion of a specified gas oil feed and selectivity via mass percent yields of defined products. The standard emphasizes that values in SI and inch