| Parameter | Suggested Method of Analysis | Description of Method | Suggested Frequency | Use of data |
|---|---|---|---|---|
| Carbonate | EPRI Method N1 | CO2 evolution, Ba(OH)2 absorption, Acid-base titration | Start and finish of each performance test run. | Measuere alkali loss in filter cake of mag-lime process; important for mag-lime or sodium systems. |
| Alkalinity | EPRI Method N3 | Titrimetric | Start and finish of each performance test run. | Measuere alkali loss in filter cake of mag-lime process; important for mag-lime or sodium systems. |
| Calcium and Magnesium | EPRI Method J1 | EDTA Titration | Start and finish of each performance test run. | Check for reagent quality |
| Inerts | EPRI Method J1 | Acid Dissolution | Start and finish of each performance test run. | Quality indicator. Important for gypsum systems. |
| Limestone slurry solids content | EPRI Method F1 | Gravimetric | Start and finish of each performance test run. | Check density meter and indicate problems in milling circuit |
| Lime slurry particle size distribution | EPRI Method G1 | Wet Sieve | Start and finish of each performance test run. | Troubleshooting problems in milling circuit or process such as low utilization or poor gypsum quality |
