Most natural waters range from pH 4 to pH 9, but commonly are above pH 7 because of carbonates and bicarbonates (alkalinity). The pH of water used in industry, boiler feed water, and swimming pools usually is kept within a narrow range.
| Number of tests | 100 |
| Parameter | pH |
| Quantity | 100 /pk |
| Range | 7.5 – 14 pH units |
| Smallest Increment Steps | 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 13.5, 14, |
| Units | 100 tests |

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