ABB AX400 Series User Manual page 70

Single and dual input analyzers for pH/Redox (ORP)
AX416, AX436, AX460, AX466 & AX468
Temp
ºC ºF 4.01 pH
0 32 4.003
5 41 3.998
10 50 3.996
15 59 3.996
20 68 3.999
25 77 4.004
30 86 4.011
35 95 4.020
40 104 4.030
45 113 4.042
50 122 4.055
55 131 4.070
60 140 4.085
65 149
70 158 4.120
75 167
80 176 4.160
85 185
90 194 4.190
95 203 4.210
Table A.4 NIST Buffer Solutions
68
NIST Buffers
6.86 pH 9.18 pH
6.982 9.460
6.949 9.392
6.921 9.331
6.898 9.276
6.878 9.227
6.863 9.183
6.851 9.143
6.842 9.107
6.836 9.074
6.832 9.044
6.831 9.017
Temp
ºC ºF 4.01 pH
0 32 4.000
5 41 3.998
10 50 3.997
15 59 3.998
20 68 4.001
25 77 4.005
30 86 4.011
35 95 4.018
40 104 4.027
45 113 4.038
50 122 4.050
55 131 4.064
60 140 4.080
65 149 4.097
70 158 4.116
75 167 4.137
80 176 4.159
85 185 4.183
90 194 4.208
95 203 4.235
Table A.5 US Technical Buffer Solutions
Appendix A – Buffer Solutions
US Technical Buffers
7 pH 10.01 pH
7.118 10.317
7.087 10.245
7.059 10.179
7.036 10.118
7.016 10.062
7.000 10.012
6.987 9.966
6.977 9.925
6.970 9.889
6.965 9.857
6.964 9.828
6.965
6.968
6.974
6.982
6.992
7.004
7.018
7.034
7.052
IM/AX4PH Rev. P