This standard specifies methods for analyzing the chemical composition of light oil conversion catalysts. This standard applies to nickel oxide (10% ~ 50%), aluminum oxide (20% ~ 70%), calcium oxide (10% ~ 15%), and magnesium oxide (10% ~ 15%) in light oil conversion catalysts , ferric oxide (0.5% ~ 1%), titanium dioxide (0.5% ~ 1%), silicon dioxide (0.5% ~ 13%), potassium oxide (2% ~ 6%), zirconium dioxide (0.3% ~ 1%) and the determination of mass fraction of loss on ignition.