Temperature/pH Correction Table Temperature Required Minimum °F °C pH Reading Actual pH 35 1.7 12.7 12.0 36 2.2 12.7 12.0 37 2.8 12.7 12.0 38 3.3 12.7 12.0 39 3.9 12.6 12.0 40 4.4 12.6 12.0 41 5.0 12.6 12.0 42 5.6 12.6 12.0 43 6.1 12.6 12.0 44 6.7 12.6 12.0 45 7.2 12.5 12.0 46 7.8 12.5 12.0 47 8.3 12.5 12.0 48 8.9 12.5 12.0 49 9.4 12.5 12.0 50 10.0 12.5 12.0 51 10.6 12.4 12.0 52 11.1 12.4 12.0 53 11.7 12.4 12.0 54 12.2 12.4 12.0 55 12.8 12.4 12.0 56 13.3 12.4 12.0 57 13.9 12.3 12.0 58 14.4 12.3 12.0 59 15.0 12.3 12.0 60 15.6 12.3 12.0 61 16.1 12.3 12.0 62 16.7 12.3 12.0 63 17.2 12.2 12.0 64 17.8 12.2 12.0 65 18.3 12.2 12.0 66 18.9 12.2 12.0 67 19.4 12.2 12.0 68 20.0 12.2 12.0 69 20.6 12.1 12.0 70 21.1 12.1 12.0 71 21.7 12.1 12.0 72 22.2 12.1 12.0 73 22.8 12.1 12.0 74 23.3 12.1 12.0 75 23.9 12.0 12.0 76 24.4 12.0 12.0 77 25.0 12.0 12.0 78 25.6 12.0 12.0 79 26.1 12.0 12.0 80 26.7 12.0 12.0 Actual pH = Measured pH + [ 0.0167 x (Temp °F - 77) ]
