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Single and Dual Input Analyzers for pH/Redox (ORP)
AX416, AX436, AX460, AX466 & AX468
Temp
ºC
ºF
4pH
0
32
4.05
5
41
4.04
10
50
4.02
15
59
4.01
20
68
4.00
25
77
4.01
30
86
4.01
35
95
4.01
40
104
4.01
45
113
4.01
50
122
4.00
55
131
4.00
60
140
4.00
65
149
4.00
70
158
4.00
75
167
4.00
80
176
4.00
85
185
4.00
90
194
4.00
95
203
4.00
Table A.3 Merck Buffer Solutions
IM/AX4PH
Issue 9
Merck Buffers
7pH
9pH
10pH
7.13
9.24
10.26
7.07
9.16
10.17
7.05
9.11
10.11
7.02
9.05
10.05
7.00
9.00
10.00
6.98
8.95
8.95
6.98
8.91
9.89
6.96
8.88
9.84
6.95
8.85
9.82
6.95
8.82
6.95
8.79
9.74
6.95
8.76
6.96
8.73
9.67
6.96
8.72
6.96
8.70
9.62
6.96
8.68
6.97
8.66
9.55
6.98
8.65
7.00
8.64
9.49
7.02
8.64
8.833
Temp
ºC
ºF
4.01pH
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
Appendix A
NIST Buffers
6.86pH
9.18pH
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
69
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