

| 
						CeO2 
						      3N | 
						CeO2 
						      4N | 
						CeO2 
						5N | |
| TREO | 
						99.00 | 
						99.00 | 
						99.50 | 
| 
						CeO2/TREO | 
						99.95 | 
						99.99 | 
						99.999 | 
| 
						Fe2O3 | 
						0.010 | 
						0.005 | 
						0.001 | 
| 
						SiO2 | 
						0.010 | 
						0.005 | 
						0.001 | 
| 
						CaO | 
						0.030 | 
						0.005 | 
						0.002 | 
| 
						SO42- | 
						0.050 | 
						0.020 | 
						0.020 | 
| 
						Cl- | 
						0.050 | 
						0.020 | 
						0.020 | 
| 
						Na2O | 
						0.005 | 
						0.002 | 
						0.001 | 
| 
						PbO | 
						0.005 | 
						0.002 | 
						0.001 |