Appendix
11.1.4 Buffer group 4 (ref. 25 °C) JIS Z 8802 (Japanese)
5
10
15
20
25
30
35
40
45
50
11.1.5 Buffer group 5 (ref. 25 °C) DIN (19266)
5
10
15
20
25
30
35
40
45
50
11.1.6 Buffer group 6 (ref. 25 °C) DIN (19267)
5
10
15
20
25
30
35
40
45
50
11.1.7 Buffer group 7 (ref. 25 °C) JJG (Chinese)
5
10
15
20
38
1.668
1.670
1.672
1.675
1.679
1.683
1.688
1.694
1.700
1.704
6.95
6.92
6.90
6.88
6.86
6.85
6.84
6.84
6.83
6.83
1.08
4.67
1.09
4.67
1.09
4.66
1.09
4.66
1.09
4.65
1.10
4.65
1.10
4.65
1.10
4.66
1.10
4.67
1.11
4.68
1.669
3.999
1.671
3.996
1.673
3.996
1.676
3.998
3.999
6.951
3.9998
6.923
3.999
6.900
4.002
6.881
4.008
6.865
4.015
6.853
4.024
6.844
4.035
6.838
4.047
6.834
4.060
6.833
4.00
9.40
4.00
9.33
4.00
9.28
4.00
9.22
4.01
9.18
4.02
9.14
4.02
9.10
4.04
9.07
4.05
9.04
4.06
9.01
6.87
6.84
6.82
6.80
6.79
6.78
6.77
6.76
6.76
6.76
6.949
6.921
6.898
6.879
9.395
9.332
9.276
9.225
9.180
9.139
9.102
9.068
9.038
9.011
1.67
1.67
1.67
1.68
1.68
1.68
1.69
1.69
1.70
1.71
9.43
13.63
9.37
13.37
9.32
13.16
9.27
12.96
9.23
12.75
9.18
12.61
9.13
12.45
9.09
12.29
9.04
12.09
9.00
11.98
9.391
13.210
9.330
13.011
9.276
12.820
9.226
12.637
pH/ORP/Ion/DO meter SG68