Hach-Lange SI792 P, SI792x P, SI792x P-FF, SI792x P-PA User Manual - Manual (Page 100)

Buffer tables
98
Table 29 NIST technical buffers
°C pH 2 pH 4 pH 7 pH 10 pH 12
0 1.67 4.00 7.115 10.32 13.42
5 1.67 4.00 7.085 10.25 13.21
10 1.67 4.00 7.06 10.18 13.01
15 1.67 4.00 7.04 10.12 12.8
20 1.675 4.00 7.015 10.06 12.64
25 1.68 4.005 7.00 10.01 12.46
30 1.68 4.015 6.985 9.97 12.3
35 1.69 4.025 6.98 9.93 12.13
40 1.69 4.03 6.975 9.89 11.99
45 1.7 4.045 6.975 9.86 11.84
50 1.705 4.06 6.97 9.83 11.71
55 1.715 4.075 6.97 9.83 1
1 Extrapolated values
11.57
60 1.72 4.085 6.97
9.83
1 11.45
65 1.73 4.1 6.98
9.83
1
11.45
1
70 1.74 4.13 6.99
9.83
1
11.45
1
75 1.75 4.14 7.01
9.83
1
11.45
1
80 1.765 4.16 7.03
9.83
1
11.45
1
85 1.78 4.18 7.05
9.83
1
11.45
1
90 1.79 4.21 7.08
9.83
1
11.45
1
95 1.805 4.23 7.11
9.83
1
11.45
1