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
40
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/Conductivity meter SG78