Appendix; Ph Buffer Groups - OHAUS a-AB33M1 Mode D'emploi

Analyzer and Bench Meter

13. Appendix

13.1 PH buffer groups

The meter/analyzer automatically corrects for the temperature dependence of the buffer
group of the pH value given in the following tables.
Temp ° C pH1.68
5 1.67
10 1.67
15 1.67
20 1.68
25 1.68
30 1.68
35 1.69
Temp ° C pH4
5 3.99
10 4
15 4
20 4
25 4
30 4.01
35 4.02
Temp ° C pH2.00
5 2.02
10 2.01
15 2
20 2
25 2
30 1.99
35 1.99
40 1.98
45 1.98
50 1.98
Table 13-1 Buffer group: USA standard
pH4.01
4.01
4
4
4
4.01
4.01
4.02
Table 13-1 Buffer group: JJG standard
pH6.86
6.95
6.93
6.89
6.88
6.86
6.85
6.84
Table 13-2 Buffer group: Europe standard
pH4.01
4.01
4
4
4
4.01
4.01
4.02
4.03
4.04
4.06
pH7.00 pH10.00
7.09 10.25
7.06 10.18
7.04 10.12
7.02 10.06
7 10.01
6.99 9.97
6.98 9.93
pH9.18 pH12.45
9.4 12.73
9.33 12.67
9.27 12.59
9.23 12.52
9.18 12.45
9.14 12.36
9.1 12.25
pH7.00 pH9.21
7.09 9.45
7.06 9.38
7.04 9.32
7.02 9.26
7 9.21
6.99 9.16
6.98 9.11
6.97 9.06
6.97 9.03
6.97 8.99
EN-45
pH11.00
11.72
11.54
11.36
11.18
11
10.82
10.64
10.46
10.28
10.1