Alkalinity, Total | Drop test | Blended indicator | 1 drop = 10 ppm total alkalinity as CaCO₃ | NA | 9198 |
Chlorine, Free & Total | Slide comparator | DPD | 0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 3.0 ppm chlorine (Cl₂) | 9082 | 4024 |
Chlorine, Free & Total | Slide comparator | DPD | 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 6, 8, 10 ppm chlorine (Cl₂) | 9083 | 4025 |
Copper | Slide comparator | Cuprizone | 0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 3.0 ppm Cu | 9094 | 4024 |
Cyanuric Acid | Visual determination | Turbidimetric | 20, 30, 40, 50, 60, 70, 80, 90, 100 ppm CYA | NA | 9193 |
Hardness, Calcium & Total | Drop test | EDTA titration (includes inhibitors to prevent metal interference) | 1 drop = 10 ppm calcium or total hardness as CaCO₃ | NA | 9198 |
Iron | Slide comparator | Tripyridyl-s-triazine | 0, 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0, 2.0 ppm Fe | 9106 | 4024 |
pH w/ acid/base demand | Slide comparator | Phenol red | 6.8, 7.0, 7.2, 7.4, 7.6, 7.8, 8.0, 8.2, 8.4 | 9067 | 4024 |