Honeywell APT4000PH - Page 53

104
APT4000PH
Buffer tables
-04- Technical buffers to NIST
°C pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
1.67
1.67
1.67
1.67
1.675
1.68
1.68
1.69
1.69
1.70
1.70
5
1.715
1.72
1.73
1.74
1.75
1.76
5
1.78
1.79
1.80
5
4.00
4.00
4.00
4.00
4.00
4.005
4.015
4.025
4.03
4.045
4.06
4.075
4.085
4.10
4.13
4.14
4.16
4.18
4.21
4.23
7.115
7.085
7.06
7.04
7.015
7.00
6.98
5
6.98
6.975
6.975
6.97
6.97
6.97
6.98
6.99
7.01
7.03
7.05
7.08
7.11
10.32
10.25
10.18
10.12
10.06
10.01
9.97
9.93
9.89
9.86
9.83
9.83
9.83
9.83
9.83
9.83
9.83
9.83
9.83
9.83
13.42
13.21
13.01
12.80
12.64
12.46
12.30
12.13
11.99
11.84
11.71
11.57
11.45
11.45
11.45
11.45
11.45
11.45
11.45
11.45
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* Extrapolated
105
-05- NIST standard buffers
°C pH
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
4.010
4.004
4.000
3.999
4.001
4.006
4.012
4.021
4.031
4.043
4.057
4.071
4.087
4.109
4.126
4.145
4.164
4.185
4.205
4.227
6.984
6.951
6.923
6.900
6.881
6.865
6.853
6.844
6.838
6.834
6.833
6.834
6.836
6.841
6.845
6.852
6.859
6.868
6.877
6.886
9.464
9.395
9.332
9.276
9.225
9.180
9.139
9.102
9.068
9.038
9.011
8.985
8.962
8.942
8.921
8.903
8.885
8.868
8.850
8.833
1.666
1.668
1.670
1.672
1.675
1.679
1.683
1.688
1.694
1.700
1.707
1.715
1.723
1.733
1.743
1.755
1.766
1.779
1.792
1.806